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New Member

EIGRP & Secondary Addresses

Hi ! Following scenario:

R1-----R2-----R3

EIGRP is the routing protocol. R1 gets a secondary address. R2 receives the update but doesn´t put the new net into the topology table. Therefore the new network isn´t in the routing table of R2 and R3 until R2 (link to R1) is also configured with an appropriate secondary address. Has anyone an explanation ?? (OSPF does not behave like that)

THANKS

1 REPLY
New Member

Re: EIGRP & Secondary Addresses

I found this note on CCO: If any router on a network segment uses a secondary address, all other routers on that same segment must also use a secondary address from the same network or subnet. An inconsistent use of secondary addresses on a network segment can very quickly lead to routing loops.

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