Are you over 18 and want to see adult content?
More Annotations
A complete backup of http://www.torrent.com.br/
Are you over 18 and want to see adult content?
A complete backup of https://www.cajunturkeyco.com/
Are you over 18 and want to see adult content?
A complete backup of https://www.sdarot.life/index
Are you over 18 and want to see adult content?
A complete backup of http://autoblog-x.ru.net/v/73031
Are you over 18 and want to see adult content?
A complete backup of https://www.pinterest.co.kr/pin/436497388868641802/
Are you over 18 and want to see adult content?
A complete backup of https://www.comico.in.th/titles/1742
Are you over 18 and want to see adult content?
A complete backup of https://tbcpay.ge/services/jarimebi/cfc
Are you over 18 and want to see adult content?
A complete backup of https://www.urajp.eu/recent-post/page/3898/
Are you over 18 and want to see adult content?
A complete backup of https://www.blogger.com/profile/18267893995440029641
Are you over 18 and want to see adult content?
Favourite Annotations
A complete backup of bestbookmarks.win
Are you over 18 and want to see adult content?
A complete backup of mailing-list.biz
Are you over 18 and want to see adult content?
A complete backup of cheapessaywriter.org
Are you over 18 and want to see adult content?
Text
CREATE SUBNETS
The formula to calculate the number of hosts is 2 y – 2, with y representing the number of host bits. Since 2 7 – 2 is 126, we have more than enough bits for our hosts. 3. Our network will look like this: 192.168.0.0/25 – the first subnet has the subnet number of 192.168.0.0. The range of IP addresses in this subnet is 192.168.0.0– 192
CONFIGURING STANDARD ACLS Configuring standard ACLs. To create an standard access list on a Cisco router, the following command is used from the router’s global configuration mode: R1 (config)# access-list ACL_NUMBER permit|deny IP_ADDRESS WILDCARD_MASK. NOTE. ACL number for the standard ACLs has to be between 1–99 and 1300–1999. You can also use the hostkeyword
OSPF SUMMARIZATION
OSPF summarization. Route summarization helps reduce OSPF traffic and route computation. OSPF, unlike EIGRP, doesn’t support automatic summarization. Also, unlike EIGRP, where you can summarize routes on every router in an EIGRP network, OSFP can summarize routes only on ABRs and ASBRs. The following command is used for OSPF summarization:RIPNG - STUDY CCNA
RIPng is an extension of RIP developed for support of IPv6. Here are some of its features: just like RIP for IPv4, it uses hop count as the metric. sends updates every 30 seconds. RIPng messages use the UDP port 521 and the multicast address of FF02::9. The configuration of RIPng is requires at least two steps:OSPF AUTHENTICATION
OSPF authentication. OSPF can be configured to authenticate every OSPF message. This is usually done to prevent a rogue router from injecting false routing information and therefore causing a Denial-of-Service attack. Two types of authentication can be used: 1. clear text authentication – clear text passwords are used. 2.IOS BASIC COMMANDS
The command can be entered in both the user EXEC and privileged EXEC mode. By using this command you can find out many useful information about your Cisco device, such as: Software Version – IOS software version. System up-time – time since last reboot. Software imageSETTING UP SSH
To enable secure access to your Cisco device, you can use SSH instead of Telnet. SSH uses encryption to secure data from eavesdropping. To enable SSH, the following steps are required:CONFIGURE ROAS
Other ports were configured as access ports and placed into respective VLANs since they are connected to end devices. Now, let’s configure the router: R1 (config)#int Gi0/0 R1 (config-if)#no shutdown R1 (config-if)# %LINK-5-CHANGED: Interface GigabitEthernet0/0, changed state to up %LINEPROTO-5-UPDOWN: Line protocol on Interface DESIGNATED & BACKUP DESIGNATED ROUTER January 26, 2016 May 5, 2020 upravnik. Based on the network type, OSPF router can elect one router to be a Designated Ruter (DR) and one router to be a Backup Designated Router (BDR). For example, on multiaccess broadcast networks (such as LANs) routers defaults to elect a DR and BDR. DR and BDR serve as the central point forexchanging OSPF
NO IP DOMAIN-LOOKUP COMMAND If you don’t need to have a DNS server configured for your router, you can use the no ip domain-lookup command to disable the DNS translation process: R1 (config)#no ip domain-lookup. Now, if I mistype a command, the router will not perform a DNS resolution process: R1#writte Translating "writte" % Unknown command or computername, or unable
CREATE SUBNETS
The formula to calculate the number of hosts is 2 y – 2, with y representing the number of host bits. Since 2 7 – 2 is 126, we have more than enough bits for our hosts. 3. Our network will look like this: 192.168.0.0/25 – the first subnet has the subnet number of 192.168.0.0. The range of IP addresses in this subnet is 192.168.0.0– 192
CONFIGURING STANDARD ACLS Configuring standard ACLs. To create an standard access list on a Cisco router, the following command is used from the router’s global configuration mode: R1 (config)# access-list ACL_NUMBER permit|deny IP_ADDRESS WILDCARD_MASK. NOTE. ACL number for the standard ACLs has to be between 1–99 and 1300–1999. You can also use the hostkeyword
OSPF SUMMARIZATION
OSPF summarization. Route summarization helps reduce OSPF traffic and route computation. OSPF, unlike EIGRP, doesn’t support automatic summarization. Also, unlike EIGRP, where you can summarize routes on every router in an EIGRP network, OSFP can summarize routes only on ABRs and ASBRs. The following command is used for OSPF summarization:RIPNG - STUDY CCNA
RIPng is an extension of RIP developed for support of IPv6. Here are some of its features: just like RIP for IPv4, it uses hop count as the metric. sends updates every 30 seconds. RIPng messages use the UDP port 521 and the multicast address of FF02::9. The configuration of RIPng is requires at least two steps:OSPF AUTHENTICATION
OSPF authentication. OSPF can be configured to authenticate every OSPF message. This is usually done to prevent a rogue router from injecting false routing information and therefore causing a Denial-of-Service attack. Two types of authentication can be used: 1. clear text authentication – clear text passwords are used. 2.IOS BASIC COMMANDS
The command can be entered in both the user EXEC and privileged EXEC mode. By using this command you can find out many useful information about your Cisco device, such as: Software Version – IOS software version. System up-time – time since last reboot. Software imageSETTING UP SSH
To enable secure access to your Cisco device, you can use SSH instead of Telnet. SSH uses encryption to secure data from eavesdropping. To enable SSH, the following steps are required:CONFIGURE ROAS
Other ports were configured as access ports and placed into respective VLANs since they are connected to end devices. Now, let’s configure the router: R1 (config)#int Gi0/0 R1 (config-if)#no shutdown R1 (config-if)# %LINK-5-CHANGED: Interface GigabitEthernet0/0, changed state to up %LINEPROTO-5-UPDOWN: Line protocol on Interface DESIGNATED & BACKUP DESIGNATED ROUTER January 26, 2016 May 5, 2020 upravnik. Based on the network type, OSPF router can elect one router to be a Designated Ruter (DR) and one router to be a Backup Designated Router (BDR). For example, on multiaccess broadcast networks (such as LANs) routers defaults to elect a DR and BDR. DR and BDR serve as the central point forexchanging OSPF
NO IP DOMAIN-LOOKUP COMMAND If you don’t need to have a DNS server configured for your router, you can use the no ip domain-lookup command to disable the DNS translation process: R1 (config)#no ip domain-lookup. Now, if I mistype a command, the router will not perform a DNS resolution process: R1#writte Translating "writte" % Unknown command or computername, or unable
FREE CISCO CCNA STUDY GUIDE Get ready for your CCNA exam - download comprehensive free CCNA Study Guide PDF covering everything on the latest Cisco CCNA 200-301 exam. RECOMMENDED CCNA STUDY RESOURCES Flackbox Cisco CCNA Gold Bootcamp. The highest rated CCNA course online. With a 4.8 star average from over 30,000 public reviews, it’s verified as the gold standard in CCNA training and is the only course I personally recommend.. It features 35 hours of HD video tutorials, 300 pages of configuration lab exercises, an additional 150 pages of bonus troubleshooting labs, and quizzes for every THANK YOU! - STUDY-CCNA.COM Almost there! Please check your email for a message titled ”Important: Download your CCNA Study Notes PDF” to verify. You’ll receive an email from Study-CCNARIPNG - STUDY CCNA
RIPng is an extension of RIP developed for support of IPv6. Here are some of its features: just like RIP for IPv4, it uses hop count as the metric. sends updates every 30 seconds. RIPng messages use the UDP port 521 and the multicast address of FF02::9. The configuration of RIPng is requires at least two steps:OSPF AUTHENTICATION
OSPF authentication. OSPF can be configured to authenticate every OSPF message. This is usually done to prevent a rogue router from injecting false routing information and therefore causing a Denial-of-Service attack. Two types of authentication can be used: 1. clear text authentication – clear text passwords are used. 2.VTP CONFIGURATION
1. a switch has to be configured as either a VTP server or VTP client. 2. the VTP domain name has to be the same on both switches. 3. if present, the VTP domain password has to be the same. 4. VTP versions have to match. 5. the link between the switches has to be aCONFIGURING RIPV2
This article describes how to configure RIPv2. Configuring RIPv2 is a pretty straightforward process. Only three steps are required: CONFIGURE CISCO ROUTER AS A DHCP CLIENT Consider the following example: We have a small network consisting of a router and a DHCP server. We want to configure the interface Gi0/0 on the router as a DHCP client. This is how this is done: R1 (config)#int Gi0/0 R1 (config-if)#ip address dhcp. We can verify that the Gi0/0 interface has indeed got its IP address from the DHCP serverby
ENCAPSULATION
Encapsulation. The term encapsulation is used to describe a process of adding headers and trailers around some data. This process can be explained with the four-layer TCP/IP model, with each step describing the role of the layer. For example, here is what happens when you send an email using your favourite email program (such as Outlook or CONFIGURE AN IP ADDRESS ON A SWITCH Usually, the default VLAN 1 acts like the switch’s own NIC for connecting into a LAN to send IP packets. Here are the steps to configure an IP address under VLAN 1: enter the VLAN 1 configuration mode with the interface vlan 1 global configuration command. assign an IP address with the ip address IP_ADDRESS SUBNET_MASK interfacesubcommand.
FREE CCNA TUTORIALS. STUDY CCNA FOR FREE!WHAT IS CCNANEW CCNA EXAM Welcome to study-ccna.com, a free CCNA tutorial site that closely follows the Cisco CCNA curriculum. The site was designed to help you pass the current CCNA 200-301 exam, but it can also be used as a reference for anything networking related. You’ll find all thematerials needed to
DESIGNATED & BACKUP DESIGNATED ROUTER January 26, 2016 May 5, 2020 upravnik. Based on the network type, OSPF router can elect one router to be a Designated Ruter (DR) and one router to be a Backup Designated Router (BDR). For example, on multiaccess broadcast networks (such as LANs) routers defaults to elect a DR and BDR. DR and BDR serve as the central point forexchanging OSPF
CREATE SUBNETS
The formula to calculate the number of hosts is 2 y – 2, with y representing the number of host bits. Since 2 7 – 2 is 126, we have more than enough bits for our hosts. 3. Our network will look like this: 192.168.0.0/25 – the first subnet has the subnet number of 192.168.0.0. The range of IP addresses in this subnet is 192.168.0.0– 192
OSPF SUMMARIZATION
OSPF summarization. Route summarization helps reduce OSPF traffic and route computation. OSPF, unlike EIGRP, doesn’t support automatic summarization. Also, unlike EIGRP, where you can summarize routes on every router in an EIGRP network, OSFP can summarize routes only on ABRs and ASBRs. The following command is used for OSPF summarization:CONFIGURING RSTP
Configuring RSTP. Most newer Cisco switches use RSTP by default. RSTP prevents frame looping out of the box and no additional configuration is necessary. To check whether a switch runs RSTP, the show spanning-tree command is used: SW1#show spanning-tree VLAN0001 Spanning tree enabled protocol rstp Root ID Priority 32769 Address0004.9A47.1039
SETTING UP SSH
To enable secure access to your Cisco device, you can use SSH instead of Telnet. SSH uses encryption to secure data from eavesdropping. To enable SSH, the following steps are required:VTP CONFIGURATION
1. a switch has to be configured as either a VTP server or VTP client. 2. the VTP domain name has to be the same on both switches. 3. if present, the VTP domain password has to be the same. 4. VTP versions have to match. 5. the link between the switches has to be a COLLISION & BROADCAST DOMAIN Broadcast domain. A broadcast domain is the domain in which a broadcast is forwarded. A broadcast domain contains all devices that can reach each other at the data link layer (OSI layer 2) by using broadcast. All ports on a hub or a switch are by default in the same broadcast domain. All ports on a router are in the different broadcastdomains
CONFIGURE CISCO ROUTER AS A DHCP CLIENT Consider the following example: We have a small network consisting of a router and a DHCP server. We want to configure the interface Gi0/0 on the router as a DHCP client. This is how this is done: R1 (config)#int Gi0/0 R1 (config-if)#ip address dhcp. We can verify that the Gi0/0 interface has indeed got its IP address from the DHCP serverby
CONFIGURE AN IP ADDRESS ON A SWITCH Usually, the default VLAN 1 acts like the switch’s own NIC for connecting into a LAN to send IP packets. Here are the steps to configure an IP address under VLAN 1: enter the VLAN 1 configuration mode with the interface vlan 1 global configuration command. assign an IP address with the ip address IP_ADDRESS SUBNET_MASK interfacesubcommand.
FREE CCNA TUTORIALS. STUDY CCNA FOR FREE!WHAT IS CCNANEW CCNA EXAM Welcome to study-ccna.com, a free CCNA tutorial site that closely follows the Cisco CCNA curriculum. The site was designed to help you pass the current CCNA 200-301 exam, but it can also be used as a reference for anything networking related. You’ll find all thematerials needed to
DESIGNATED & BACKUP DESIGNATED ROUTER January 26, 2016 May 5, 2020 upravnik. Based on the network type, OSPF router can elect one router to be a Designated Ruter (DR) and one router to be a Backup Designated Router (BDR). For example, on multiaccess broadcast networks (such as LANs) routers defaults to elect a DR and BDR. DR and BDR serve as the central point forexchanging OSPF
CREATE SUBNETS
The formula to calculate the number of hosts is 2 y – 2, with y representing the number of host bits. Since 2 7 – 2 is 126, we have more than enough bits for our hosts. 3. Our network will look like this: 192.168.0.0/25 – the first subnet has the subnet number of 192.168.0.0. The range of IP addresses in this subnet is 192.168.0.0– 192
OSPF SUMMARIZATION
OSPF summarization. Route summarization helps reduce OSPF traffic and route computation. OSPF, unlike EIGRP, doesn’t support automatic summarization. Also, unlike EIGRP, where you can summarize routes on every router in an EIGRP network, OSFP can summarize routes only on ABRs and ASBRs. The following command is used for OSPF summarization:CONFIGURING RSTP
Configuring RSTP. Most newer Cisco switches use RSTP by default. RSTP prevents frame looping out of the box and no additional configuration is necessary. To check whether a switch runs RSTP, the show spanning-tree command is used: SW1#show spanning-tree VLAN0001 Spanning tree enabled protocol rstp Root ID Priority 32769 Address0004.9A47.1039
SETTING UP SSH
To enable secure access to your Cisco device, you can use SSH instead of Telnet. SSH uses encryption to secure data from eavesdropping. To enable SSH, the following steps are required:VTP CONFIGURATION
1. a switch has to be configured as either a VTP server or VTP client. 2. the VTP domain name has to be the same on both switches. 3. if present, the VTP domain password has to be the same. 4. VTP versions have to match. 5. the link between the switches has to be a COLLISION & BROADCAST DOMAIN Broadcast domain. A broadcast domain is the domain in which a broadcast is forwarded. A broadcast domain contains all devices that can reach each other at the data link layer (OSI layer 2) by using broadcast. All ports on a hub or a switch are by default in the same broadcast domain. All ports on a router are in the different broadcastdomains
CONFIGURE CISCO ROUTER AS A DHCP CLIENT Consider the following example: We have a small network consisting of a router and a DHCP server. We want to configure the interface Gi0/0 on the router as a DHCP client. This is how this is done: R1 (config)#int Gi0/0 R1 (config-if)#ip address dhcp. We can verify that the Gi0/0 interface has indeed got its IP address from the DHCP serverby
CONFIGURE AN IP ADDRESS ON A SWITCH Usually, the default VLAN 1 acts like the switch’s own NIC for connecting into a LAN to send IP packets. Here are the steps to configure an IP address under VLAN 1: enter the VLAN 1 configuration mode with the interface vlan 1 global configuration command. assign an IP address with the ip address IP_ADDRESS SUBNET_MASK interfacesubcommand.
FREE CISCO CCNA STUDY GUIDE Get ready for your CCNA exam - download comprehensive free CCNA Study Guide PDF covering everything on the latest Cisco CCNA 200-301 exam.ENCAPSULATION
Encapsulation. The term encapsulation is used to describe a process of adding headers and trailers around some data. This process can be explained with the four-layer TCP/IP model, with each step describing the role of the layer. For example, here is what happens when you send an email using your favourite email program (such as Outlook or THANK YOU! - STUDY-CCNA.COM Almost there! Please check your email for a message titled ”Important: Download your CCNA Study Notes PDF” to verify. You’ll receive an email from Study-CCNAIOS BASIC COMMANDS
The command can be entered in both the user EXEC and privileged EXEC mode. By using this command you can find out many useful information about your Cisco device, such as: Software Version – IOS software version. System up-time – time since last reboot. Software imageNEW CCNA EXAM
New CCNA exam – 200-301. Cisco certification program has been drastically changed from Feb. 24, 2020. There are no longer multiple different CCNA exams and certifications – only a single, comprehensive exam is available. The new exam’s code is 200-301 CCNA and its full name is Implementing and Administering Cisco NetworkingTechnologies.
OSPF AUTHENTICATION
OSPF authentication. OSPF can be configured to authenticate every OSPF message. This is usually done to prevent a rogue router from injecting false routing information and therefore causing a Denial-of-Service attack. Two types of authentication can be used: 1. clear text authentication – clear text passwords are used. 2.WIDE AREA NETWORK
The term wide area network is used to describe a network that spans multiple geographic locations.Consider an example. A company has two offices, one in London and one in Berlin. Both offices have a LAN. If the company connects these two LANs together using WAN technology, aWAN is created.
ARP (ADDRESS RESOLUTION PROTOCOL) EXPLAINED ARP (Address Resolution Protocol) is a network protocol used to find out the hardware (MAC) address of a device from an IP address. It is used when a device wants to communicate with some other device on a local network (for example on an Ethernet network that requires physical addresses to be known before sending packets).SHOW COMMAND
This command is used to display the device’s configuration, statistics, command history, interface status. The show command is invoked from the enable mode and can accept a lot of parameters: Here is a brief description of the most popular show commands: show running-config – displays the running (current) configuration ofyour device
INTERFACE RANGE COMMAND Interface range command. If you have multiple interfaces that need to be configured with the same settings, you can use the interface range command to specify a range of interfaces to which the subsequent commands will be applied. For example, let’s say that interfaces Fa0/4, Fa0/5, Fa0/6, Fa0/7, and Fa0/8 need to have the samedescription.
FREE CCNA TUTORIALS. STUDY CCNA FOR FREE!WHAT IS CCNANEW CCNA EXAM Welcome to study-ccna.com, a free CCNA tutorial site that closely follows the Cisco CCNA curriculum. The site was designed to help you pass the current CCNA 200-301 exam, but it can also be used as a reference for anything networking related. You’ll find all thematerials needed to
CREATE SUBNETS
The formula to calculate the number of hosts is 2 y – 2, with y representing the number of host bits. Since 2 7 – 2 is 126, we have more than enough bits for our hosts. 3. Our network will look like this: 192.168.0.0/25 – the first subnet has the subnet number of 192.168.0.0. The range of IP addresses in this subnet is 192.168.0.0– 192
OSPF SUMMARIZATION
OSPF summarization. Route summarization helps reduce OSPF traffic and route computation. OSPF, unlike EIGRP, doesn’t support automatic summarization. Also, unlike EIGRP, where you can summarize routes on every router in an EIGRP network, OSFP can summarize routes only on ABRs and ASBRs. The following command is used for OSPF summarization:IOS BASIC COMMANDS
The command can be entered in both the user EXEC and privileged EXEC mode. By using this command you can find out many useful information about your Cisco device, such as: Software Version – IOS software version. System up-time – time since last reboot. Software imageCONFIGURE ROAS
Other ports were configured as access ports and placed into respective VLANs since they are connected to end devices. Now, let’s configure the router: R1 (config)#int Gi0/0 R1 (config-if)#no shutdown R1 (config-if)# %LINK-5-CHANGED: Interface GigabitEthernet0/0, changed state to up %LINEPROTO-5-UPDOWN: Line protocol on Interface CONFIGURING STANDARD ACLS Configuring standard ACLs. To create an standard access list on a Cisco router, the following command is used from the router’s global configuration mode: R1 (config)# access-list ACL_NUMBER permit|deny IP_ADDRESS WILDCARD_MASK. NOTE. ACL number for the standard ACLs has to be between 1–99 and 1300–1999. You can also use the hostkeyword
SETTING UP SSH
To enable secure access to your Cisco device, you can use SSH instead of Telnet. SSH uses encryption to secure data from eavesdropping. To enable SSH, the following steps are required: CONFIGURE CISCO ROUTER AS A DHCP CLIENT Consider the following example: We have a small network consisting of a router and a DHCP server. We want to configure the interface Gi0/0 on the router as a DHCP client. This is how this is done: R1 (config)#int Gi0/0 R1 (config-if)#ip address dhcp. We can verify that the Gi0/0 interface has indeed got its IP address from the DHCP serverby
DESIGNATED & BACKUP DESIGNATED ROUTER January 26, 2016 May 5, 2020 upravnik. Based on the network type, OSPF router can elect one router to be a Designated Ruter (DR) and one router to be a Backup Designated Router (BDR). For example, on multiaccess broadcast networks (such as LANs) routers defaults to elect a DR and BDR. DR and BDR serve as the central point forexchanging OSPF
CONFIGURE AN IP ADDRESS ON A SWITCH Usually, the default VLAN 1 acts like the switch’s own NIC for connecting into a LAN to send IP packets. Here are the steps to configure an IP address under VLAN 1: enter the VLAN 1 configuration mode with the interface vlan 1 global configuration command. assign an IP address with the ip address IP_ADDRESS SUBNET_MASK interfacesubcommand.
FREE CCNA TUTORIALS. STUDY CCNA FOR FREE!WHAT IS CCNANEW CCNA EXAM Welcome to study-ccna.com, a free CCNA tutorial site that closely follows the Cisco CCNA curriculum. The site was designed to help you pass the current CCNA 200-301 exam, but it can also be used as a reference for anything networking related. You’ll find all thematerials needed to
CREATE SUBNETS
The formula to calculate the number of hosts is 2 y – 2, with y representing the number of host bits. Since 2 7 – 2 is 126, we have more than enough bits for our hosts. 3. Our network will look like this: 192.168.0.0/25 – the first subnet has the subnet number of 192.168.0.0. The range of IP addresses in this subnet is 192.168.0.0– 192
OSPF SUMMARIZATION
OSPF summarization. Route summarization helps reduce OSPF traffic and route computation. OSPF, unlike EIGRP, doesn’t support automatic summarization. Also, unlike EIGRP, where you can summarize routes on every router in an EIGRP network, OSFP can summarize routes only on ABRs and ASBRs. The following command is used for OSPF summarization:IOS BASIC COMMANDS
The command can be entered in both the user EXEC and privileged EXEC mode. By using this command you can find out many useful information about your Cisco device, such as: Software Version – IOS software version. System up-time – time since last reboot. Software imageCONFIGURE ROAS
Other ports were configured as access ports and placed into respective VLANs since they are connected to end devices. Now, let’s configure the router: R1 (config)#int Gi0/0 R1 (config-if)#no shutdown R1 (config-if)# %LINK-5-CHANGED: Interface GigabitEthernet0/0, changed state to up %LINEPROTO-5-UPDOWN: Line protocol on Interface CONFIGURING STANDARD ACLS Configuring standard ACLs. To create an standard access list on a Cisco router, the following command is used from the router’s global configuration mode: R1 (config)# access-list ACL_NUMBER permit|deny IP_ADDRESS WILDCARD_MASK. NOTE. ACL number for the standard ACLs has to be between 1–99 and 1300–1999. You can also use the hostkeyword
SETTING UP SSH
To enable secure access to your Cisco device, you can use SSH instead of Telnet. SSH uses encryption to secure data from eavesdropping. To enable SSH, the following steps are required: CONFIGURE CISCO ROUTER AS A DHCP CLIENT Consider the following example: We have a small network consisting of a router and a DHCP server. We want to configure the interface Gi0/0 on the router as a DHCP client. This is how this is done: R1 (config)#int Gi0/0 R1 (config-if)#ip address dhcp. We can verify that the Gi0/0 interface has indeed got its IP address from the DHCP serverby
DESIGNATED & BACKUP DESIGNATED ROUTER January 26, 2016 May 5, 2020 upravnik. Based on the network type, OSPF router can elect one router to be a Designated Ruter (DR) and one router to be a Backup Designated Router (BDR). For example, on multiaccess broadcast networks (such as LANs) routers defaults to elect a DR and BDR. DR and BDR serve as the central point forexchanging OSPF
CONFIGURE AN IP ADDRESS ON A SWITCH Usually, the default VLAN 1 acts like the switch’s own NIC for connecting into a LAN to send IP packets. Here are the steps to configure an IP address under VLAN 1: enter the VLAN 1 configuration mode with the interface vlan 1 global configuration command. assign an IP address with the ip address IP_ADDRESS SUBNET_MASK interfacesubcommand.
FREE CISCO CCNA STUDY GUIDE Get ready for your CCNA exam - download comprehensive free CCNA Study Guide PDF covering everything on the latest Cisco CCNA 200-301 exam.ENCAPSULATION
Encapsulation. The term encapsulation is used to describe a process of adding headers and trailers around some data. This process can be explained with the four-layer TCP/IP model, with each step describing the role of the layer. For example, here is what happens when you send an email using your favourite email program (such as Outlook or THANK YOU! - STUDY-CCNA.COM Almost there! Please check your email for a message titled ”Important: Download your CCNA Study Notes PDF” to verify. You’ll receive an email from Study-CCNARIPNG - STUDY CCNA
RIPng is an extension of RIP developed for support of IPv6. Here are some of its features: just like RIP for IPv4, it uses hop count as the metric. sends updates every 30 seconds. RIPng messages use the UDP port 521 and the multicast address of FF02::9. The configuration of RIPng is requires at least two steps:OSPF AUTHENTICATION
OSPF authentication. OSPF can be configured to authenticate every OSPF message. This is usually done to prevent a rogue router from injecting false routing information and therefore causing a Denial-of-Service attack. Two types of authentication can be used: 1. clear text authentication – clear text passwords are used. 2.VTP CONFIGURATION
1. a switch has to be configured as either a VTP server or VTP client. 2. the VTP domain name has to be the same on both switches. 3. if present, the VTP domain password has to be the same. 4. VTP versions have to match. 5. the link between the switches has to be a DESIGNATED & BACKUP DESIGNATED ROUTER January 26, 2016 May 5, 2020 upravnik. Based on the network type, OSPF router can elect one router to be a Designated Ruter (DR) and one router to be a Backup Designated Router (BDR). For example, on multiaccess broadcast networks (such as LANs) routers defaults to elect a DR and BDR. DR and BDR serve as the central point forexchanging OSPF
OSPF OVERVIEW
OSPF (Open Shortest Path First) is a link state routing protocol. Because it is an open standard, it is implemented by a variety of network vendors. OSPF will run on most routers that doesn’t necessarily have to be Cisco routers (unlike EIGRP which can be run only on Cisco routers).WIDE AREA NETWORK
The term wide area network is used to describe a network that spans multiple geographic locations.Consider an example. A company has two offices, one in London and one in Berlin. Both offices have a LAN. If the company connects these two LANs together using WAN technology, aWAN is created.
ARP (ADDRESS RESOLUTION PROTOCOL) EXPLAINED ARP (Address Resolution Protocol) is a network protocol used to find out the hardware (MAC) address of a device from an IP address. It is used when a device wants to communicate with some other device on a local network (for example on an Ethernet network that requires physical addresses to be known before sending packets).ENCAPSULATION
Encapsulation. The term encapsulation is used to describe a process of adding headers and trailers around some data. This process can be explained with the four-layer TCP/IP model, with each step describing the role of the layer. For example, here is what happens when you send an email using your favourite email program (such as Outlook orCREATE SUBNETS
The formula to calculate the number of hosts is 2 y – 2, with y representing the number of host bits. Since 2 7 – 2 is 126, we have more than enough bits for our hosts. 3. Our network will look like this: 192.168.0.0/25 – the first subnet has the subnet number of 192.168.0.0. The range of IP addresses in this subnet is 192.168.0.0– 192
RIPNG - STUDY CCNA
RIPng is an extension of RIP developed for support of IPv6. Here are some of its features: just like RIP for IPv4, it uses hop count as the metric. sends updates every 30 seconds. RIPng messages use the UDP port 521 and the multicast address of FF02::9. The configuration of RIPng is requires at least two steps:EIGRP CONFIGURATION
Configuring EIGRP 2. By default, the network command uses a classful network as the parameter. All interfaces inside that classful network will participate in the EIGRP process.To enable EIGRP only on specific interfaces, a wildcard mask can be used.ENCAPSULATION
Encapsulation. The term encapsulation is used to describe a process of adding headers and trailers around some data. This process can be explained with the four-layer TCP/IP model, with each step describing the role of the layer. For example, here is what happens when you send an email using your favourite email program (such as Outlook orCREATE SUBNETS
The formula to calculate the number of hosts is 2 y – 2, with y representing the number of host bits. Since 2 7 – 2 is 126, we have more than enough bits for our hosts. 3. Our network will look like this: 192.168.0.0/25 – the first subnet has the subnet number of 192.168.0.0. The range of IP addresses in this subnet is 192.168.0.0– 192
RIPNG - STUDY CCNA
RIPng is an extension of RIP developed for support of IPv6. Here are some of its features: just like RIP for IPv4, it uses hop count as the metric. sends updates every 30 seconds. RIPng messages use the UDP port 521 and the multicast address of FF02::9. The configuration of RIPng is requires at least two steps:EIGRP CONFIGURATION
Configuring EIGRP 2. By default, the network command uses a classful network as the parameter. All interfaces inside that classful network will participate in the EIGRP process.To enable EIGRP only on specific interfaces, a wildcard mask can be used.IOS BASIC COMMANDS
The command can be entered in both the user EXEC and privileged EXEC mode. By using this command you can find out many useful information about your Cisco device, such as: Software Version – IOS software version. System up-time – time since last reboot. Software imageOSPF AUTHENTICATION
OSPF authentication. OSPF can be configured to authenticate every OSPF message. This is usually done to prevent a rogue router from injecting false routing information and therefore causing a Denial-of-Service attack. Two types of authentication can be used: 1. clear text authentication – clear text passwords are used. 2. DESIGNATED & BACKUP DESIGNATED ROUTER January 26, 2016 May 5, 2020 upravnik. Based on the network type, OSPF router can elect one router to be a Designated Ruter (DR) and one router to be a Backup Designated Router (BDR). For example, on multiaccess broadcast networks (such as LANs) routers defaults to elect a DR and BDR. DR and BDR serve as the central point forexchanging OSPF
CONFIGURE CISCO ROUTER AS A DHCP CLIENT Consider the following example: We have a small network consisting of a router and a DHCP server. We want to configure the interface Gi0/0 on the router as a DHCP client. This is how this is done: R1 (config)#int Gi0/0 R1 (config-if)#ip address dhcp. We can verify that the Gi0/0 interface has indeed got its IP address from the DHCP serverby
CONFIGURING STANDARD ACLS Configuring standard ACLs. To create an standard access list on a Cisco router, the following command is used from the router’s global configuration mode: R1 (config)# access-list ACL_NUMBER permit|deny IP_ADDRESS WILDCARD_MASK. NOTE. ACL number for the standard ACLs has to be between 1–99 and 1300–1999. You can also use the hostkeyword
ARP (ADDRESS RESOLUTION PROTOCOL) EXPLAINED ARP (Address Resolution Protocol) is a network protocol used to find out the hardware (MAC) address of a device from an IP address. It is used when a device wants to communicate with some other device on a local network (for example on an Ethernet network that requires physical addresses to be known before sending packets). ARP (ADDRESS RESOLUTION PROTOCOL) EXPLAINED ARP (Address Resolution Protocol) is a network protocol used to find out the hardware (MAC) address of a device from an IP address. It is used when a device wants to communicate with some other device on a local network (for example on an Ethernet network that requires physical addresses to be known before sending packets).WIDE AREA NETWORK
The term wide area network is used to describe a network that spans multiple geographic locations.Consider an example. A company has two offices, one in London and one in Berlin. Both offices have a LAN. If the company connects these two LANs together using WAN technology, aWAN is created.
CONFIGURE ROAS
Other ports were configured as access ports and placed into respective VLANs since they are connected to end devices. Now, let’s configure the router: R1 (config)#int Gi0/0 R1 (config-if)#no shutdown R1 (config-if)# %LINK-5-CHANGED: Interface GigabitEthernet0/0, changed state to up %LINEPROTO-5-UPDOWN: Line protocol on Interface ADMINISTRATIVE DISTANCE & METRIC Administrative distance number is used by routers to find out which route is better (lower number is better). For example, if the same route is learned from RIP and EIGRP, a Cisco router will choose the EIGRP route and stores it in the routing table. This is because EIGRP routes have (by default) the administrative distance of 90, while RIPCONFIGURING RIPV2
This article describes how to configure RIPv2. Configuring RIPv2 is a pretty straightforward process. Only three steps are required: FTP & TFTP - STUDY CCNA FTP (File Transfer Protocol) FTP is a network protocol used to transfer files from one computer to another over a TCP network. Like Telnet, it uses a client-network architecture, which means that a user has to have an FTP client installed to access the FTP server running on a remote machine.CONFIGURING VLANS
Configuring VLANs. By default, all ports on a switch are in the VLAN 1. We can verify that by typing the show vlan command from the IOS enable mode of a switch: In the picture above, you can see that all of the 24 ports of the switch are in the same VLAN, namely VLAN 1. Two steps are required to create a VLAN and assign a switch port to the IP HEADER - STUDY CCNA An IP header is a prefix to an IP packet that contains information about the IP version, length of the packet, source and destination IP addresses, etc. It consists of the following fields: Here is a description of each field: Version – the version of the IP protocol. For IPv4, this field has a value of 4. Header length – the length of the header in 32-bit words.SETTING UP SSH
To enable secure access to your Cisco device, you can use SSH instead of Telnet. SSH uses encryption to secure data from eavesdropping. To enable SSH, the following steps are required: COLLISION & BROADCAST DOMAIN Broadcast domain. A broadcast domain is the domain in which a broadcast is forwarded. A broadcast domain contains all devices that can reach each other at the data link layer (OSI layer 2) by using broadcast. All ports on a hub or a switch are by default in the same broadcast domain. All ports on a router are in the different broadcastdomains
Skip to content
Search for:
__ __ Menu
* Home
* What is CCNA?
* CCNA 200-301 exam
WELCOME TO STUDY-CCNA.COM, A FREE CCNA TUTORIAL SITE WHERE YOU CANSTUDY CCNA
Welcome to STUDY-CCNA.COM, a free CCNA tutorial site that closely follows the Cisco CCNA curriculum. The site was designed to help you pass the current CCNA 200-301 exam, but it can also be used as a reference for anything networking related. You’ll find all the materials needed to study for your CCNA exam here. On the left side (or below on mobile) you will find a list of articles covering all the exam topics, organised into chapters. The first couple of chapters describe some basic networking terms and devices, the later chapters go a little bit more in depth. You can start reading the articles from the beginning to work your way through the exam topics in a logical manner, or you can find a specific articlethat interests you.
So what are you waiting for? Choose a topic and start learning! Wewish you luck!
START LEARNING
Networking basics __ * What is a network? * OSI & TCP/IP models * Local area network (LAN)* Wide area network
* Encapsulation
* Ethernet explained* Ethernet frame
* MAC & IP addresses * Unicast, multicast, and broadcast addresses* Network devices
* Network hubs explained * Network bridge explained * Network switch explained * Network router explained * Half duplex and full duplex * IEEE Ethernet standards * Cisco three-layer hierarchical modelCabling __
* Types of Ethernet cabling * Types of Ethernet cables – straight-through and crossoverIP addressing __
* Types of IP addresses * Classes of IP addresses * Private IP addresses explained * Subnetting explained* Subnet mask
* Create subnets
* CIDR (Classless inter-domain routing)Network tools __
* Ping explained
* Traceroute explained Network protocols __ * TCP/IP suite of protocols* TCP explained
* UDP explained
* Ports explained
* ARP (Address Resolution Protocol) explained* DHCP & DNS
* Telnet & SSH
* FTP & TFTP
* SNMP (Simple Network Management Protocol) * HTTP and HTTPS explained * NTP (Network Time Protocol) * APIPA (Automatic Private IP Addressing) * ICMP (Internet Control Message Protocol)* IP header
Cisco IOS __
* Cisco IOS overview * Power on a Cisco device* IOS command modes
* Get help in IOS
* Running & startup configuration * IOS basic commands* show command
* Configure descriptions * Run privileged commands within global config mode * Ports on an IOS device * Pipe character in IOS* IOS boot sequence
* Backing up IOS configurationIP routing __
* What is IP routing? * Connected, static & dynamic routes * Administrative distance & metric* Routing protocols
RIP __
* RIP overview
* Configuring RIPv2
* passive-interface command * RIP loop prevention * Advertise default routes using RIPEIGRP __
* EIGRP overview
* EIGRP configuration * Wildcard mask in EIGRP * EIGRP automatic & manual summarization * EIGRP authentication & load balancing * EIGRP Reliable Transport Protocol (RTP) * EIGRP Diffusing Update Algorithm (DUAL)* EIGRP summary
OSPF __
* OSPF overview
* OSPF configuration * Designated & Backup Designated Router * OSPF authentication * OSPF summarization* OSPF summary
* Differences between OSPF and EIGRP * Comparing internal routing protocols (IGPs)LAN switching __
* Layer 2 switching
* How switches work
* Collision & broadcast domain* CSMA/CD
VLAN __
* What is a VLAN?
* Access and trunk ports* Configuring VLANs
* Configuring access & trunk ports* Frame tagging
* IEEE 802.1Q
* Inter-Switch Link (ISL) * Configuring voice VLANs * Configuring allowed VLANsVTP __
* What is VTP?
* VTP modes
* VTP configuration
STP and RSTP __
* What is STP?
* How STP works
* Electing the Root Switch in STP * Selecting STP root port * Selecting STP designated port (DP)* What is RSTP?
* How RSTP works
* Configuring RSTP
ACLs __
* What are ACLs?
* Types of ACLs
* Configuring standard ACLs * Configuring extended ACLs * Configuring named ACLsNAT __
* What is NAT?
* Static NAT
* Dynamic NAT
* Port Address Translation (PAT) configurationIPv6 __
* What is IPv6?
* IPv6 address format * Types of IPv6 addresses * IPv6 unicast addresses * IPv6 global unicast addresses * IPv6 unique local addresses * IPv6 link-local addresses * IPv6 multicast addresses * IPv6 address prefixes * IPv6 interface identifier * IPv6 transition options * IPv6 routing protocols * How to configure IPv6* RIPng
* Differences between IPv4 and IPv6Miscellaneous __
* Wildcard masks
* Setting up Telnet
* Setting up SSH
* Port security
* Types of memory on a Cisco device * Configure Cisco router as DHCP server * Configure NTP on a Cisco router * Cisco Discovery Protocol (CDP) overview * Map hostnames to IP addresses * Configure Cisco device as DNS client * Extended ping command * traceroute command* debug command
* show processes command * Configure an IP address on a switch * Configure interVLAN routing* Configure ROAS
* Configure static MAC address * Link Layer Discovery Protocol (LLDP)* IOS files
* Configure speed and duplex * Interface range command * How to upgrade Cisco IOS * Copy files with FTP * show version command * TCP three-way handshake * Erasing configuration files * show interfaces status command * Configure Cisco router as a DHCP client * logging synchronous command * exec-timeout command * no ip domain-lookup command * Encrypt local usernames and passwords * Cisco console rollover cable * Create a static host route * Uniform Resource Locator (URL) structure * The ARP table on a Cisco router * Default static route * Configure timezone and Daylight Saving Time (DST)* DHCP relay agent
* Interface status codes * Auxiliary Port on a Cisco router* Syslog explained
* Syslog message format* About
* Contact
* Privacy Policy
Copyright study-ccna.com 2021. All rights reserved. This is not an official Cisco website. __Details
Copyright © 2024 ArchiveBay.com. All rights reserved. Terms of Use | Privacy Policy | DMCA | 2021 | Feedback | Advertising | RSS 2.0