Multiple Summary Addresses on Interface

[h.parsons]

Because of a merger between my network and another my IP addresses are not contigous anymore.I am using EIGRP as my routing protocol and my question is can I enter more than one summary address on an interface? This sites has the addresses range from 10.11.0.0-10.16.255.255, can I do the following:

ip summary-address eigrp 1 10.8.0.0 255.252.0.0

ip summary-address eigrp 1 10.12.0.0 255.252.0.0

ip summary-address eigrp 1 10.16.0.0 255.252.0.0

[m.mcconnell · Accepted solution]

Yes, you can do that. Multiple summary addreses are supported on a single interface.

One thing you might want to watch is your last summary route - it includes more address space then you said they have. You may want to summarize this way:

ip summary-address eigrp 1 10.8.0.0 255.252.0.0

ip summary-address eigrp 1 10.12.0.0 255.252.0.0

ip summary-address eigrp 1 10.16.0.0 255.255.0.0

I just try to be as accurate as possible with this stuff.

-Mark