routeprotocol.com

routeprotocol

  • Configuring a Generic Routing Encapsulation Tunnel

    In global configuration mode, create a tunnel with the command interface tunnel 10 Next, configure the source address or interface of the tunnel with the command tunnel source. For example,. tunnel source GigabitEthernet0/0 The tunnel source command indicates the interface that will be used for tunnelling the traffic. Configure the address of the destination interface.…

  • Generic Routing Encapsulation (GRE)

    Generic Routing Encapsulation is a protocol that can provide connectivity to a variety of network layer protocols by tunneling them over an IP based network. Generic Routing Encapsulations origins come from a legacy protocol called Internetwork Packet Exchange (IPX). GRE would be able to carry IPX packets over an IP network via encapsulation through a…

  • Port Address Translation

    Port Address Translation allows a mapping of many local private IP addresses to a single global IP address. The router maintains a table of translations by changing the source ports from the local address connection to an identifiable one on the global IP address. To configure port address translation, configure the inside interface with ip…

  • Pooled Network Address Translation

    Static Network Address Translation provides a simple one to one method of translating private to public IP addresses. Pooled NAT provides a more dynamic approach to one to one translation when required. The dynamic translation lasts for at least 24 hours by default when requested by a private IP address. If a one to one…

  • NAT Translation Table

    The Network Address Translation translation table will show static and dynamic entries of NAT on the router. It can be displayed with the command show ip nat translations

  • Static Network Address Translation

    Static Network Address Translation translates a local IP address to a global IP address. It is based on a static mapping configured on the router. There are two types of static NAT, Inside Static NAT and Outside Static NAT Inside Static NAT Inside static NAT maps an inside local address, a private IP address, to…

  • Network Address Translation (NAT)

    Network Address Translation, NAT, allows an internal IP network (such as those defined in RFC 1918) to appear as a publicly routed network on the internet. A NAT device such as a firewall or router will modify the source or destination IP in a packets header as they arrive on an inside or outside interface.…

  • Checking GLBP status

    The command show glbp with an optional additional parameter of brief will show high level details of the global load balancing protocol configuration and status.

  • Configuring Global Load Balancing Protocol (GBLP)

    Under interface configuration mode, define the group and virtual IP address. glbp <group-id> ip <ip-address> Preemption is disabled by default for an election of an active virtual gateway. To enable preemption use the command glbp <group-id> preemption GLBP timers can be modified from their defaults (3 seconds hello, 10 seconds hold) with the command glbp…

  • Global Load Balancing Protocol (GLBP)

    Gateway Load Balancing builds on existing first hop redundancy protocols by providing gateway redundancy and an additional benefit of load balancing capabilities. GLBP is made up of two roles, the active virtual gateway and the active virtual forwarder. Active Virtual Gateway All the participating routers in a GLBP group will elect one active virtual gateway.…