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Routing the loopback's network address

Can someone explain to me how a loopback address gets advertised to the rest of the network if it is on a different major network from both the serial and ethernet interfaces? I look at the routing table and it shows that this network is directly connected via the loopback 0 interface. EIGRP is the routing protocol of choice and there is a network x.x.x.x command for the loopback's network under our router AS number.

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Re: Routing the loopback's network address

The loopback interface is advertised in exactly the same way as a real interface provided you have a network statement for it.

By default, EIGRP will summerise on a major network boundary so, if you do not want this, you need to add the 'no auto-summary' command to the EIGRP configuration.

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