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CCNA 200-301 V1.0
DHCP snooping acts as a guardian or in the form of network security . DHCP snooping enables the switching or network device, which can be either a switch or a router, to monitor DHCP messages received from untrusted devices connected to the switching device. When DHCP snooping is enabled on a switched network or VLAN, it examines allDHCP
CCNA 200-301 V1.0 PPP: CHALLENGE HANDSHAKE AUTHENTICATION Challenge Handshake Authentication Protocol (CHAP) Challenge Handshake Authentication Protocol (CHAP) is more secure than PAP. It involves a three-way exchange of a shared secret. During link establishment, CHAP conducts periodic challenges to make sure that the remote host still has a valid password value. While PAP basically stops working once authentication is established, this leaves the WHAT ARE WAN DEVICES ? There are specially designed network devices that are used to interconnect LANs.Configuring, installing and maintenance of this devices requires expert skills by skilled technicians for the management of the organization’s network. MOST COMMON LAYER 2 NETWORK ATTACKS As a network administrator,you’re responsible for securing the corporate or private network, you need to know the vulnerabilities that attackers will use. On these pages, we will look at the most common Layer 2 attacks and recommended methods to reduce the effects of these attacks. The most common types of Layer 2 attacks are as follows:CAM table overflowVLAN Read More » WIRELESS NETWORKING ARCHIVES Wireless Network Overview. Wireless network is a type of computer network where communication or exchange data among various devices on the network are carried out without the use of cables, This means, the connection and exchange of data between computers and other devices in a particular network is made possible by radio signal frequency (RF WHAT IS REMOTE ACCESS VPN? EXPLAINED WITH EXAMPLES What is Remote-access VPNs? In a Remote-access VPNs, individual hosts or clients, such as telecommuters, mobile users, and extranet consumers, are able to access a company network securely over the Internet. Each host typically has VPN client software loaded or uses a web-based client. A remote-access VPN host or client typically has VPN client software. Whenever the host tries to send HOW TO CABLE LANS AND WANS Cabling LANs and WANs. When planning the installation of LAN cabling, choosing the cables necessary to make a successful LAN or WAN connection requires consideration of the different media types. There are many different Physical layer implementations that support multiple media types: • UTP (Category 5, 5e, 6, and 7) • Fiber-optics • Wireless Each media type has Read More » WHAT IS VTP PRUNING ? EXPLANATION WITH EXAMPLES What is VTP Pruning? VTP pruning helps improve proper allocation and use of network bandwidth by reducing unnecessary flooded traffic, such as broadcast, multicast, unknown, and flooded unicast packets. VTP pruning is disabled by default in Cisco switches. VTP pruning helps to send broadcasts only to those trunk links that actually needs the WHAT IS FIREWALL ? EXPLAINED WITH EXAMPLES In networking, the term firewall means a system that enforces an access control policy between networks. This control policy can include options such as a packet filtering router, a switch with VLANs, and multiple hosts with firewall software. A firewall system can be a composition of many different devices and components. One crucial component of a firewall is traffic Read More » VLAN ID RANGES EXPLAINED VLAN ID Ranges. VLANs ID is divided into either a normal range or an extended range. Normal Range IDs – 1 – 1005 – 1002 – 1005 are reserved for Token Ring and FDDI VLANs – 1 and 1002 to 1005 are automatically created and cannot be removed – Normal rage VLANs IS store in the vlan.dat file Read More »CCNA 200-301 V1.0
DHCP snooping acts as a guardian or in the form of network security . DHCP snooping enables the switching or network device, which can be either a switch or a router, to monitor DHCP messages received from untrusted devices connected to the switching device. When DHCP snooping is enabled on a switched network or VLAN, it examines allDHCP
CCNA 200-301 V1.0 PPP: CHALLENGE HANDSHAKE AUTHENTICATION Challenge Handshake Authentication Protocol (CHAP) Challenge Handshake Authentication Protocol (CHAP) is more secure than PAP. It involves a three-way exchange of a shared secret. During link establishment, CHAP conducts periodic challenges to make sure that the remote host still has a valid password value. While PAP basically stops working once authentication is established, this leaves the MOST COMMON LAYER 2 NETWORK ATTACKS As a network administrator,you’re responsible for securing the corporate or private network, you need to know the vulnerabilities that attackers will use. On these pages, we will look at the most common Layer 2 attacks and recommended methods to reduce the effects of these attacks. The most common types of Layer 2 attacks are as follows:CAM table overflowVLAN Read More » CISCO CCNA RIP ROUTING LOOP EXPLAINED WITH EXAMPLES Split Horizon, Route Poisoning, and Holddown Explained Split Horizon RIP is distance-vector protocols, is also susceptible to routing loops (network problem which enables a data packet to continually being routed through the same routers over and over. The data packets continue to be routed within the network in an endless circle.). Split horizon is one of the features Read More » WHAT IS VTP PRUNING ? EXPLANATION WITH EXAMPLES What is VTP Pruning? VTP pruning helps improve proper allocation and use of network bandwidth by reducing unnecessary flooded traffic, such as broadcast, multicast, unknown, and flooded unicast packets. VTP pruning is disabled by default in Cisco switches. VTP pruning helps to send broadcasts only to those trunk links that actually needs the WHAT IS STATIC AND DYNAMIC NAT ? EXPLAINED WITH EXAMPLES Static and Dynamic NAT Both static and dynamic NAT requires that enough public addresses are available to satisfy the total number of simultaneous user sessions. Static NAT Static NAT also called inbound mapping, is the process of mapping an unregistered IP address to a registered IP address on a one-to-one basis. The unregistered or mapped IP address is Read More » WHAT IS NAT? HOW TO TROUBLESHOOT AND VERIFY NAT CONFIGURATION How to Troubleshoot and Verify NAT Configuration The most common mistake in troubleshooting is not the inability to use commands but the laxity in the examination of entries and configuration. Solving network problems requires careful and proper examination of routing entries and configuration. There are several useful router commands to verify NAT translations. Cisco routers are WHAT IS WIRELESS LAN ? EXPLAINED WITH EXAMPLE Wireless LAN (WLAN). There are different network infrastructures (wired LAN, Service Provider Networks) that allow mobility, but in a business environment, the most important is the wireless LAN (WLAN). Most modern business networks rely on switch-based LANs for day-to-day operation inside the office. Productivity is no longer restricted to a fixed work location or a defined time periodCCNA 200-301 V1.0
CCNA 200-301 v1.0 – InterVLAN Routing Explained with Examples. We define inter-VLAN routing as a process of forwarding network traffic from one VLAN to another VLAN using a router or layer 3 device. In the previous pages, we learned about how to configure VLANs on a networkswitch.
CCNA 200-301 V1.0 PORT ADDRESS TRANSLATION EXPLAINED WITH What is NAT Overload or Port Address Translation PAT. NAT overload sometimes called PAT (Port Address Translation) maps multiple unregistered or private IP addresses to a single registered or public IP address by using different ports. This is what most home broadband routers do. Your ISP assigns an IP address to your router, but you find out that Read More » VLAN ID RANGES EXPLAINED VLAN ID Ranges. VLANs ID is divided into either a normal range or an extended range. Normal Range IDs – 1 – 1005 – 1002 – 1005 are reserved for Token Ring and FDDI VLANs – 1 and 1002 to 1005 are automatically created and cannot be removed – Normal rage VLANs IS store in the vlan.dat file Read More » CCNA 200-301 V1.0 PPP: CHALLENGE HANDSHAKE AUTHENTICATION Challenge Handshake Authentication Protocol (CHAP) Challenge Handshake Authentication Protocol (CHAP) is more secure than PAP. It involves a three-way exchange of a shared secret. During link establishment, CHAP conducts periodic challenges to make sure that the remote host still has a valid password value. While PAP basically stops working once authentication is established, MOST COMMON LAYER 2 NETWORK ATTACKS As a network administrator,you’re responsible for securing the corporate or private network, you need to know the vulnerabilities that attackers will use. On these pages, we will look at the most common Layer 2 attacks and recommended methods to reduce the effects of these attacks. The most common types of Layer 2 attacks are as follows:CAM table overflowVLAN Read More » WHAT ARE WAN DEVICES ? There are specially designed network devices that are used to interconnect LANs.Configuring, installing and maintenance of this devices requires expert skills by skilled technicians for the management of the organization’s network. WIRELESS NETWORKING ARCHIVES Wireless Network Overview. Wireless network is a type of computer network where communication or exchange data among various devices on the network are carried out without the use of cables, This means, the connection and exchange of data between computers and other devices in a particular network is made possible by radio signal frequency (RF CISCO CCNA RIP ROUTING LOOP EXPLAINED WITH EXAMPLES Split Horizon, Route Poisoning, and Holddown Explained Split Horizon RIP is distance-vector protocols, is also susceptible to routing loops (network problem which enables a data packet to continually being routed through the same routers over and over. The data packets continue to be routed within the network in an endless circle.). Split horizon is one of the features Read More » WHAT IS FIREWALL ? EXPLAINED WITH EXAMPLES In networking, the term firewall means a system that enforces an access control policy between networks. This control policy can include options such as a packet filtering router, a switch with VLANs, and multiple hosts with firewall software. A firewall system can be a composition of many different devices and components. One crucial component of a firewall is traffic Read More » WHAT IS VTP PRUNING ? EXPLANATION WITH EXAMPLES What is VTP Pruning? VTP pruning helps improve proper allocation and use of network bandwidth by reducing unnecessary flooded traffic, such as broadcast, multicast, unknown, and flooded unicast packets. VTP pruning is disabled by default in Cisco switches. VTP pruning helps to send broadcasts only to those trunk links that actually needs theCCNA 200-301 V1.0
CCNA 200-301 v1.0 – InterVLAN Routing Explained with Examples. We define inter-VLAN routing as a process of forwarding network traffic from one VLAN to another VLAN using a router or layer 3 device. In the previous pages, we learned about how to configure VLANs on a networkswitch.
CCNA 200-301 V1.0 PORT ADDRESS TRANSLATION EXPLAINED WITH What is NAT Overload or Port Address Translation PAT. NAT overload sometimes called PAT (Port Address Translation) maps multiple unregistered or private IP addresses to a single registered or public IP address by using different ports. This is what most home broadband routers do. Your ISP assigns an IP address to your router, but you find out that Read More » WHAT IS IPV6 STATIC AND DEFAULT ROUTE ? HOW TO CONFIGURATION Static and default routes IP configurations on network routers is to enable communication to remote networks that are not directly connected. There are similarities when configuring IPv4 and IPv6 static and default routes on Cisco Integrated Services Routers (ISRs), the only difference is the IP addressing formats and IPv6 routing had to be enabled on the router with the Read More » CCNA 200-301 V1.0 PPP: CHALLENGE HANDSHAKE AUTHENTICATION Challenge Handshake Authentication Protocol (CHAP) Challenge Handshake Authentication Protocol (CHAP) is more secure than PAP. It involves a three-way exchange of a shared secret. During link establishment, CHAP conducts periodic challenges to make sure that the remote host still has a valid password value. While PAP basically stops working once authentication is established, this leaves the MOST COMMON LAYER 2 NETWORK ATTACKS As a network administrator,you’re responsible for securing the corporate or private network, you need to know the vulnerabilities that attackers will use. On these pages, we will look at the most common Layer 2 attacks and recommended methods to reduce the effects of these attacks. The most common types of Layer 2 attacks are as follows:CAM table overflowVLAN Read More » WHAT ARE WAN DEVICES ? There are specially designed network devices that are used to interconnect LANs.Configuring, installing and maintenance of this devices requires expert skills by skilled technicians for the management of the organization’s network. WIRELESS NETWORKING ARCHIVES Wireless Network Overview. Wireless network is a type of computer network where communication or exchange data among various devices on the network are carried out without the use of cables, This means, the connection and exchange of data between computers and other devices in a particular network is made possible by radio signal frequency (RF CISCO CCNA RIP ROUTING LOOP EXPLAINED WITH EXAMPLES Split Horizon, Route Poisoning, and Holddown Explained Split Horizon RIP is distance-vector protocols, is also susceptible to routing loops (network problem which enables a data packet to continually being routed through the same routers over and over. The data packets continue to be routed within the network in an endless circle.). Split horizon is one of the features Read More » WHAT IS FIREWALL ? EXPLAINED WITH EXAMPLES In networking, the term firewall means a system that enforces an access control policy between networks. This control policy can include options such as a packet filtering router, a switch with VLANs, and multiple hosts with firewall software. A firewall system can be a composition of many different devices and components. One crucial component of a firewall is traffic Read More » WHAT IS VTP PRUNING ? EXPLANATION WITH EXAMPLES What is VTP Pruning? VTP pruning helps improve proper allocation and use of network bandwidth by reducing unnecessary flooded traffic, such as broadcast, multicast, unknown, and flooded unicast packets. VTP pruning is disabled by default in Cisco switches. VTP pruning helps to send broadcasts only to those trunk links that actually needs theCCNA 200-301 V1.0
CCNA 200-301 v1.0 – InterVLAN Routing Explained with Examples. We define inter-VLAN routing as a process of forwarding network traffic from one VLAN to another VLAN using a router or layer 3 device. In the previous pages, we learned about how to configure VLANs on a networkswitch.
CCNA 200-301 V1.0 PORT ADDRESS TRANSLATION EXPLAINED WITH What is NAT Overload or Port Address Translation PAT. NAT overload sometimes called PAT (Port Address Translation) maps multiple unregistered or private IP addresses to a single registered or public IP address by using different ports. This is what most home broadband routers do. Your ISP assigns an IP address to your router, but you find out that Read More » WHAT IS IPV6 STATIC AND DEFAULT ROUTE ? HOW TO CONFIGURATION Static and default routes IP configurations on network routers is to enable communication to remote networks that are not directly connected. There are similarities when configuring IPv4 and IPv6 static and default routes on Cisco Integrated Services Routers (ISRs), the only difference is the IP addressing formats and IPv6 routing had to be enabled on the router with the Read More » CCNA 200-301 V1.0 PPP: CHALLENGE HANDSHAKE AUTHENTICATION Challenge Handshake Authentication Protocol (CHAP) Challenge Handshake Authentication Protocol (CHAP) is more secure than PAP. It involves a three-way exchange of a shared secret. During link establishment, CHAP conducts periodic challenges to make sure that the remote host still has a valid password value. While PAP basically stops working once authentication is established, this leaves the MOST COMMON LAYER 2 NETWORK ATTACKS As a network administrator,you’re responsible for securing the corporate or private network, you need to know the vulnerabilities that attackers will use. On these pages, we will look at the most common Layer 2 attacks and recommended methods to reduce the effects of these attacks. The most common types of Layer 2 attacks are as follows:CAM table overflowVLAN Read More » WHAT ARE WAN DEVICES ? There are specially designed network devices that are used to interconnect LANs.Configuring, installing and maintenance of this devices requires expert skills by skilled technicians for the management of the organization’s network. WHAT IS BLUETOOTH WIRELESS TECHNOLOGY? What is Bluetooth Wireless Technology? Bluetooth technology uses radio transmissions to enable devices such as computers, printers, mice, or mobile phones to communicate wirelessly over a short distance. Bluetooth was invented in 1994 by the Ericsson mobile phone company of Sweden. The Bluetooth standard was released in 1999 and is now widely used by mobile phone and computer WHAT IS REMOTE ACCESS VPN? EXPLAINED WITH EXAMPLES What is Remote-access VPNs? In a Remote-access VPNs, individual hosts or clients, such as telecommuters, mobile users, and extranet consumers, are able to access a company network securely over the Internet. Each host typically has VPN client software loaded or uses a web-based client. A remote-access VPN host or client typically has VPN client software. Whenever the host tries to send HOW TO CABLE LANS AND WANS Cabling LANs and WANs. When planning the installation of LAN cabling, choosing the cables necessary to make a successful LAN or WAN connection requires consideration of the different media types. There are many different Physical layer implementations that support multiple media types: • UTP (Category 5, 5e, 6, and 7) • Fiber-optics • Wireless Each media type has Read More » WHAT IS VTP PRUNING ? EXPLANATION WITH EXAMPLES What is VTP Pruning? VTP pruning helps improve proper allocation and use of network bandwidth by reducing unnecessary flooded traffic, such as broadcast, multicast, unknown, and flooded unicast packets. VTP pruning is disabled by default in Cisco switches. VTP pruning helps to send broadcasts only to those trunk links that actually needs theCCNA 200-301 V1.0
CCNA 200-301 v1.0 – InterVLAN Routing Explained with Examples. We define inter-VLAN routing as a process of forwarding network traffic from one VLAN to another VLAN using a router or layer 3 device. In the previous pages, we learned about how to configure VLANs on a networkswitch.
VLAN ID RANGES EXPLAINED VLAN ID Ranges. VLANs ID is divided into either a normal range or an extended range. Normal Range IDs – 1 – 1005 – 1002 – 1005 are reserved for Token Ring and FDDI VLANs – 1 and 1002 to 1005 are automatically created and cannot be removed – Normal rage VLANs IS store in the vlan.dat file Read More » CCNA 200-301 V1.0 PORT ADDRESS TRANSLATION EXPLAINED WITH What is NAT Overload or Port Address Translation PAT. NAT overload sometimes called PAT (Port Address Translation) maps multiple unregistered or private IP addresses to a single registered or public IP address by using different ports. This is what most home broadband routers do. Your ISP assigns an IP address to your router, but you find out that Read More »CCNA 200-301 V1.0
DHCP snooping acts as a guardian or in the form of network security . DHCP snooping enables the switching or network device, which can be either a switch or a router, to monitor DHCP messages received from untrusted devices connected to the switching device. When DHCP snooping is enabled on a switched network or VLAN, it examines allDHCP
ORBIT-COMPUTER-SOLUTIONS As you must know, orbit-computer-solutions is been one of the best on the web on Cisco CCNA CCNA 200-301 v1.0 Networking topics, Cisco Router and Switch configuration tutorials, basic Computer Training and PC Repairs tutorials, Home and Wireless Networking information. Click on the following links to visit the Page (s). WHAT ARE WAN DEVICES ? There are specially designed network devices that are used to interconnect LANs.Configuring, installing and maintenance of this devices requires expert skills by skilled technicians for the management of the organization’s network. WIRELESS NETWORKING ARCHIVES Wireless Network Overview. Wireless network is a type of computer network where communication or exchange data among various devices on the network are carried out without the use of cables, This means, the connection and exchange of data between computers and other devices in a particular network is made possible by radio signal frequency (RF WHAT IS REMOTE ACCESS VPN? EXPLAINED WITH EXAMPLES What is Remote-access VPNs? In a Remote-access VPNs, individual hosts or clients, such as telecommuters, mobile users, and extranet consumers, are able to access a company network securely over the Internet. Each host typically has VPN client software loaded or uses a web-based client. A remote-access VPN host or client typically has VPN client software. Whenever the host tries to send HOW TO CABLE LANS AND WANS Cabling LANs and WANs. When planning the installation of LAN cabling, choosing the cables necessary to make a successful LAN or WAN connection requires consideration of the different media types. There are many different Physical layer implementations that support multiple media types: • UTP (Category 5, 5e, 6, and 7) • Fiber-optics • Wireless Each media type has Read More » WHAT IS VTP PRUNING ? EXPLANATION WITH EXAMPLES What is VTP Pruning? VTP pruning helps improve proper allocation and use of network bandwidth by reducing unnecessary flooded traffic, such as broadcast, multicast, unknown, and flooded unicast packets. VTP pruning is disabled by default in Cisco switches. VTP pruning helps to send broadcasts only to those trunk links that actually needs the WHAT ARE END DEVICES AND THEIR ROLES ON A NETWORK? EXPLAINED What are End Network Devices? The network devices that people are most familiar with are called end devices. These devices form the interface between the human network and the underlying communication network. Some examples of end devices are: Computers ,laptops, file servers, web servers. Network printers VoIP phones Security cameras Mobile handheld devices. Intermediary WHAT IS WIRELESS LAN ? EXPLAINED WITH EXAMPLE Wireless LAN (WLAN). There are different network infrastructures (wired LAN, Service Provider Networks) that allow mobility, but in a business environment, the most important is the wireless LAN (WLAN). Most modern business networks rely on switch-based LANs for day-to-day operation inside the office. Productivity is no longer restricted to a fixed work location or a defined time period WHAT IS STATIC AND DYNAMIC NAT ? EXPLAINED WITH EXAMPLES Static and Dynamic NAT Both static and dynamic NAT requires that enough public addresses are available to satisfy the total number of simultaneous user sessions. Static NAT Static NAT also called inbound mapping, is the process of mapping an unregistered IP address to a registered IP address on a one-to-one basis. The unregistered or mapped IP address is Read More » WHAT IS VLSM ? EXPLAINED WITH EXAMPLES What is Variable Length Subnet Mask (VLSM)? Variable Length Subnet Masking – VLSM – is a technique that allows network administrators to divide an IP address space into subnets of different sizes, unlike simple same-size Subnetting. Variable Length Subnet Mask (VLSM) in a way, means subnetting a subnet. To simplify further, VLSM is the breaking down of IP Read More » ORBIT-COMPUTER-SOLUTIONS As you must know, orbit-computer-solutions is been one of the best on the web on Cisco CCNA CCNA 200-301 v1.0 Networking topics, Cisco Router and Switch configuration tutorials, basic Computer Training and PC Repairs tutorials, Home and Wireless Networking information. Click on the following links to visit the Page (s). WHAT ARE WAN DEVICES ? There are specially designed network devices that are used to interconnect LANs.Configuring, installing and maintenance of this devices requires expert skills by skilled technicians for the management of the organization’s network. WIRELESS NETWORKING ARCHIVES Wireless Network Overview. Wireless network is a type of computer network where communication or exchange data among various devices on the network are carried out without the use of cables, This means, the connection and exchange of data between computers and other devices in a particular network is made possible by radio signal frequency (RF WHAT IS REMOTE ACCESS VPN? EXPLAINED WITH EXAMPLES What is Remote-access VPNs? In a Remote-access VPNs, individual hosts or clients, such as telecommuters, mobile users, and extranet consumers, are able to access a company network securely over the Internet. Each host typically has VPN client software loaded or uses a web-based client. A remote-access VPN host or client typically has VPN client software. Whenever the host tries to send HOW TO CABLE LANS AND WANS Cabling LANs and WANs. When planning the installation of LAN cabling, choosing the cables necessary to make a successful LAN or WAN connection requires consideration of the different media types. There are many different Physical layer implementations that support multiple media types: • UTP (Category 5, 5e, 6, and 7) • Fiber-optics • Wireless Each media type has Read More » WHAT IS VTP PRUNING ? EXPLANATION WITH EXAMPLES What is VTP Pruning? VTP pruning helps improve proper allocation and use of network bandwidth by reducing unnecessary flooded traffic, such as broadcast, multicast, unknown, and flooded unicast packets. VTP pruning is disabled by default in Cisco switches. VTP pruning helps to send broadcasts only to those trunk links that actually needs the WHAT ARE END DEVICES AND THEIR ROLES ON A NETWORK? EXPLAINED What are End Network Devices? The network devices that people are most familiar with are called end devices. These devices form the interface between the human network and the underlying communication network. Some examples of end devices are: Computers ,laptops, file servers, web servers. Network printers VoIP phones Security cameras Mobile handheld devices. Intermediary WHAT IS WIRELESS LAN ? EXPLAINED WITH EXAMPLE Wireless LAN (WLAN). There are different network infrastructures (wired LAN, Service Provider Networks) that allow mobility, but in a business environment, the most important is the wireless LAN (WLAN). Most modern business networks rely on switch-based LANs for day-to-day operation inside the office. Productivity is no longer restricted to a fixed work location or a defined time period WHAT IS STATIC AND DYNAMIC NAT ? EXPLAINED WITH EXAMPLES Static and Dynamic NAT Both static and dynamic NAT requires that enough public addresses are available to satisfy the total number of simultaneous user sessions. Static NAT Static NAT also called inbound mapping, is the process of mapping an unregistered IP address to a registered IP address on a one-to-one basis. The unregistered or mapped IP address is Read More » WHAT IS VLSM ? EXPLAINED WITH EXAMPLES What is Variable Length Subnet Mask (VLSM)? Variable Length Subnet Masking – VLSM – is a technique that allows network administrators to divide an IP address space into subnets of different sizes, unlike simple same-size Subnetting. Variable Length Subnet Mask (VLSM) in a way, means subnetting a subnet. To simplify further, VLSM is the breaking down of IP Read More » WHAT ARE END DEVICES AND THEIR ROLES ON A NETWORK? EXPLAINED What are End Network Devices? The network devices that people are most familiar with are called end devices. These devices form the interface between the human network and the underlying communication network. Some examples of end devices are: Computers ,laptops, file servers, web servers. Network printers VoIP phones Security cameras Mobile handheld devices. Intermediary WHAT IS STATIC AND DYNAMIC NAT ? EXPLAINED WITH EXAMPLES Static and Dynamic NAT Both static and dynamic NAT requires that enough public addresses are available to satisfy the total number of simultaneous user sessions. Static NAT Static NAT also called inbound mapping, is the process of mapping an unregistered IP address to a registered IP address on a one-to-one basis. The unregistered or mapped IP address is Read More » CISCO CCNA RIP ROUTING LOOP EXPLAINED WITH EXAMPLES Split Horizon, Route Poisoning, and Holddown Explained Split Horizon RIP is distance-vector protocols, is also susceptible to routing loops (network problem which enables a data packet to continually being routed through the same routers over and over. The data packets continue to be routed within the network in an endless circle.). Split horizon is one of the features Read More »NETWORK SECURITY
Spanning Tree Protocol -STP stops bridging loops in a redundant switched network environment. This helps to prevent broadcast traffic from becoming a traffic storm. In an STP network environment, there should be a switch at the top named as the root.A switch is chosen as root based on the lowest configured priority of any switch (0 through 65,535).When Read More » WHAT IS POINT-TO-POINT The basic purpose of PPP at this point is to transport layer-3 packets across a Data Link layer point-to-point link. This is one of many advantages to using PPP, it is not proprietary. PPP can be used over twisted pair, fiber-optic lines, and satellite transmission. PPP provides transport over ATM, Frame Relay, ISDN and optical links.CCNA 200-301 V1.0
CCNA 200-301 v1.0 – InterVLAN Routing Explained with Examples. We define inter-VLAN routing as a process of forwarding network traffic from one VLAN to another VLAN using a router or layer 3 device. In the previous pages, we learned about how to configure VLANs on a networkswitch.
WHAT IS PASSWORD AUTHENTICATION PROTOCOL What is Password Authentication Protocol? Password Authentication Protocol (PAP) is a very basic two-way process. The username and password are sent in plain text, there is no encryption or protection. If it is accepted, the connection is allowed. PAP is not interactive in anyway, PAP is not considered a strong authentication protocol. When the ppp authentication pap command is used, the WHAT IS DHCPV6 AUTOCONFIGURATION ? EXPLAINED DHCPv6 Autoconfiguration. DHCPv6 is a network protocol that works pretty much the same as DHCP in IPv4. DHCPv6 is used to assign ip addresses and prefix to IPv6 hosts on a network. This is also known as a stateful autoconfiguration. How DHCPv6 Works. DHCPv6 works in two ways; Stateful and Stateless Address Autoconfiguration (SLAAC). Stateless Address Autoconfiguration (SLAAC) TYPE OF NETWORK ATTACK? TRUST EXPLOITATION ATTACK EXPLAINED The goal of a trust exploitation attacker is to compromise a trusted host, using it to stage attacks on other hosts in a network. If a host in a network of a company is protected by a firewall (inside host), but is accessible to a trusted host outside the firewall (outside host), the inside host can be attacked through the trusted outsidehost.
CCNA 200-301 V1.0 PPP: CHALLENGE HANDSHAKE AUTHENTICATION Challenge Handshake Authentication Protocol (CHAP) Challenge Handshake Authentication Protocol (CHAP) is more secure than PAP. It involves a three-way exchange of a shared secret. During link establishment, CHAP conducts periodic challenges to make sure that the remote host still has a valid password value. While PAP basically stops working once authentication is established, MOST COMMON LAYER 2 NETWORK ATTACKS As a network administrator,you’re responsible for securing the corporate or private network, you need to know the vulnerabilities that attackers will use. On these pages, we will look at the most common Layer 2 attacks and recommended methods to reduce the effects of these attacks. The most common types of Layer 2 attacks are as follows:CAM table overflowVLAN Read More » WHAT ARE WAN DEVICES ? There are specially designed network devices that are used to interconnect LANs.Configuring, installing and maintenance of this devices requires expert skills by skilled technicians for the management of the organization’s network. WIRELESS NETWORKING ARCHIVES The IEEE 802.11 standards specify two operating modes: infrastructure mode and ad hoc mode. Infrastructure mode is used to connect computers with wireless network adapters to an existing wired network with the help from wireless router or access point, while Ad hoc mode is used to connect wireless clients directly together, without the need for a wireless router or access point. WHAT IS BROADBAND? EXPLAINED WITH EXAMPLES Broadband technology is simply the name given to high-speed Internet access. Broadband replaced analogue modem. Broadband connection can be delivered in a number of different methods, ADSL, Cable & Satellite. With a broadband router, you can connect two or more computers to share in Internet connection at home or office. Broadband use a technology called NAT – Network Address WHAT IS REMOTE ACCESS VPN? EXPLAINED WITH EXAMPLES What is Remote-access VPNs? In a Remote-access VPNs, individual hosts or clients, such as telecommuters, mobile users, and extranet consumers, are able to access a company network securely over the Internet. Each host typically has VPN client software loaded or uses a web-based client. A remote-access VPN host or client typically has VPN client software. Whenever the host tries to send CISCO CCNA RIP ROUTING LOOP EXPLAINED WITH EXAMPLESC++ FOR LOOP EXAMPLESSIMPLE WHILE LOOP EXAMPLESEXAMPLE OF LOOP IN JAVA Split Horizon, Route Poisoning, and Holddown Explained Split Horizon RIP is distance-vector protocols, is also susceptible to routing loops (network problem which enables a data packet to continually being routed through the same routers over and over. The data packets continue to be routed within the network in an endless circle.). Split horizon is one of the features Read More » CCNA 200-301 V1.0- VIRTUAL LANS CCNA 200-301 v1.0 -VLANs Explained. VLAN (Virtual Local Network) is a logically separate IP subnetwork which allows multiple IP networks and subnets to exist on the same-switched network.. VLAN is a logical broadcast domain that can span multiple physical LAN segments. It is a modern way administrators configure switches into virtual local-area networks (VLANs) to improve network performanceCCNA 200-301 V1.0
What Is DHCP Snooping? The Dynamic Host Configuration Protocol (DHCP) allocates IP addresses dynamically, it leases addresses to connected devices and the addresses can be reused when no longer needed. All connected Hosts and end devices that require IP addresses obtained through DHCP must communicate with a DHCP server across the LAN. DHCP snooping acts like a firewall ReadCCNA 200-301 V1.0
Root Port Selection on a Switch. Best Paths to the Root Bridge. After the root bridge has been designated for the spanning tree process, the next process is to determine the best paths to the root bridge from all destinations in the network. The best path resolution is carried out by the summing up of the individual port costs along the path from the destination to the root bridge. CCNA 200-301 V1.0 PPP: CHALLENGE HANDSHAKE AUTHENTICATIONCHAP AUTHENTICATIONCHAP AUTHENTICATION FAILEDLIST OF AUTHENTICATION PROTOCOLSLIST OF AUTHENTICATION PROTOCOLSTYPES OF AUTHENTICATIONPROTOCOLS
Challenge Handshake Authentication Protocol (CHAP) Challenge Handshake Authentication Protocol (CHAP) is more secure than PAP. It involves a three-way exchange of a shared secret. During link establishment, CHAP conducts periodic challenges to make sure that the remote host still has a valid password value. While PAP basically stops working once authentication is established, this leaves the MOST COMMON LAYER 2 NETWORK ATTACKS As a network administrator,you’re responsible for securing the corporate or private network, you need to know the vulnerabilities that attackers will use. On these pages, we will look at the most common Layer 2 attacks and recommended methods to reduce the effects of these attacks. The most common types of Layer 2 attacks are as follows:CAM table overflowVLAN Read More » WHAT ARE WAN DEVICES ? There are specially designed network devices that are used to interconnect LANs.Configuring, installing and maintenance of this devices requires expert skills by skilled technicians for the management of the organization’s network. WIRELESS NETWORKING ARCHIVES The IEEE 802.11 standards specify two operating modes: infrastructure mode and ad hoc mode. Infrastructure mode is used to connect computers with wireless network adapters to an existing wired network with the help from wireless router or access point, while Ad hoc mode is used to connect wireless clients directly together, without the need for a wireless router or access point. WHAT IS BROADBAND? EXPLAINED WITH EXAMPLES Broadband technology is simply the name given to high-speed Internet access. Broadband replaced analogue modem. Broadband connection can be delivered in a number of different methods, ADSL, Cable & Satellite. With a broadband router, you can connect two or more computers to share in Internet connection at home or office. Broadband use a technology called NAT – Network Address WHAT IS REMOTE ACCESS VPN? EXPLAINED WITH EXAMPLES What is Remote-access VPNs? In a Remote-access VPNs, individual hosts or clients, such as telecommuters, mobile users, and extranet consumers, are able to access a company network securely over the Internet. Each host typically has VPN client software loaded or uses a web-based client. A remote-access VPN host or client typically has VPN client software. Whenever the host tries to send CISCO CCNA RIP ROUTING LOOP EXPLAINED WITH EXAMPLESC++ FOR LOOP EXAMPLESSIMPLE WHILE LOOP EXAMPLESEXAMPLE OF LOOP IN JAVA Split Horizon, Route Poisoning, and Holddown Explained Split Horizon RIP is distance-vector protocols, is also susceptible to routing loops (network problem which enables a data packet to continually being routed through the same routers over and over. The data packets continue to be routed within the network in an endless circle.). Split horizon is one of the features Read More » CCNA 200-301 V1.0- VIRTUAL LANS CCNA 200-301 v1.0 -VLANs Explained. VLAN (Virtual Local Network) is a logically separate IP subnetwork which allows multiple IP networks and subnets to exist on the same-switched network.. VLAN is a logical broadcast domain that can span multiple physical LAN segments. It is a modern way administrators configure switches into virtual local-area networks (VLANs) to improve network performanceCCNA 200-301 V1.0
What Is DHCP Snooping? The Dynamic Host Configuration Protocol (DHCP) allocates IP addresses dynamically, it leases addresses to connected devices and the addresses can be reused when no longer needed. All connected Hosts and end devices that require IP addresses obtained through DHCP must communicate with a DHCP server across the LAN. DHCP snooping acts like a firewall ReadCCNA 200-301 V1.0
Root Port Selection on a Switch. Best Paths to the Root Bridge. After the root bridge has been designated for the spanning tree process, the next process is to determine the best paths to the root bridge from all destinations in the network. The best path resolution is carried out by the summing up of the individual port costs along the path from the destination to the root bridge. CCNA 200-301 V1.0 PPP: CHALLENGE HANDSHAKE AUTHENTICATIONCHAP AUTHENTICATIONCHAP AUTHENTICATION FAILEDLIST OF AUTHENTICATION PROTOCOLSLIST OF AUTHENTICATION PROTOCOLSTYPES OF AUTHENTICATIONPROTOCOLS
Challenge Handshake Authentication Protocol (CHAP) Challenge Handshake Authentication Protocol (CHAP) is more secure than PAP. It involves a three-way exchange of a shared secret. During link establishment, CHAP conducts periodic challenges to make sure that the remote host still has a valid password value. While PAP basically stops working once authentication is established, this leaves theVPN ARCHIVES
What is Remote-access VPNs? In a Remote-access VPNs, individual hosts or clients, such as telecommuters, mobile users, and extranetconsumers, are able
NETWORKING FUNDAMENTALS ARCHIVES Planning and Cabling Networks Before using a smart phone, accessing instant messaging, or conducting any number of other interactions over a data network, end devices and intermediary devices must be connected via cable or wireless connections to form a functioning network. WIRELESS NETWORKING ARCHIVES The IEEE 802.11 standards specify two operating modes: infrastructure mode and ad hoc mode. Infrastructure mode is used to connect computers with wireless network adapters to an existing wired network with the help from wireless router or access point, while Ad hoc mode is used to connect wireless clients directly together, without the need for a wireless router or access point. CCNA 200-301 V1.0 SWITCHED NETWORK SWITCHING EXPLAINED What is a Switched Network?. Switching in Cisco Networking means Layer 2 switching, which is the process of using the hardware address of devices on a LAN to segment a network. Switching breaks up large collision domains into smaller ones and this enables every network domain devices to share the same bandwidth. The one layer 2 devicesused Read More »
CCNA 200-301 V1.0- VIRTUAL LANS CCNA 200-301 v1.0 -VLANs Explained. VLAN (Virtual Local Network) is a logically separate IP subnetwork which allows multiple IP networks and subnets to exist on the same-switched network.. VLAN is a logical broadcast domain that can span multiple physical LAN segments. It is a modern way administrators configure switches into virtual local-area networks (VLANs) to improve network WHAT IS VPN TECHNOLOGY ? VPN EXPLAINED WITH EXAMPLES What is a Virtual Private Network? A Virtual Private Network (VPN) is an encrypted private network connection that is constructed within a public network infrastructure such as the global Internet. A telecommuter or mobile worker can remotely access the network of the company headquarters from home or anywhere be using a secured internet connection. VPN connection is used Read More »SWITCHING ARCHIVES
There are obstacles that can cause a breach or delay even loss of communication over the network. As the internet grows beyond prediction, the modern network support for traffic is getting beyond the traditional data types and becomes increasingly difficult tomaintain.
CISCO CCNA 200-301 V1.0 ROUTING EXPLAINED WITH EXAMPLES Routing is the process of taking a packet from one network device, sending it through the network to another device on a different network. Communications across the Internet is one of the best examples of routing. The connection of WANs and LANs to a network router and configuring it with logical network addresses (IP address) to all the Read More » DYNAMIC TRUNKING PROTOCOL (DTP) EXPLAINED Understanding Dynamic Trunking Protocol (DTP) The Dynamic Trunking Protocol (DTP) is a Cisco proprietary protocol that is automatically enabled on Catalyst 2960 and Catalyst 3560 Series switches. DTP is used to negotiate to form a trunk link between two or more Cisco devices before actually forming the trunk connection. The main benefit of DTP is to increase traffic on Read More » TYPE OF NETWORK ATTACK? TRUST EXPLOITATION ATTACK EXPLAINED Trust Exploitation Attack? The goal of a trust exploitation attacker is to compromise a trusted host, using it to stage attacks on other hosts in a network. If a host in a network of a company is protected by a firewall (inside host), but is accessible to a trusted host outside the firewall (outside host), the inside host Read More »Skip to content
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