show ip interface-brief
Show Interfaces
A description will be configured on the router interfaces identifying them as belonging to RouterA.The router will attempt to establish a connection to the host with the name RouterA.The router will map an IP address to the domain name RouterA.The router prompt will change from Router(config)# to RouterA(config)#
it start the routing protocol on interfaces. it allows the router to advertise a network.
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show ip int brief
In modular router the interfaces are not fixed so that we will be able to installed cards latter on this router. But in case of non modular router the interfaces r fixed, we cannot able to add ports/interfaces latter on. That's all
The show interfaces command could be issued to determine if the router has experienced an input or output error.
The router ID is used to uniquely identify each router in the OSPF routing domain.If no loopback interfaces are configured, the router chooses the highest active IP address of any of its physical interfaces.
Configure the router ID on both routers. Configure the R2 router interfaces for area 0. Configure a loopback interface on both routers. Configure the proper subnet masks on the router interfaces.
Insert the module with the power on, then issue the show running-config command to verify that all new interfaces are recognized
Boundary routers have interfaces in more than one major classful network.
When applying IPv4 addresses to router interfaces on a network, you would manually configure predictable addresses. For example, the lowest or highest address of the local subnet, on each particular router interface.