EIGRP not advertising a subnet- urgent

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Oct 9th, 2009
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Hello all,

I have got two SVI interfaces on the 3750, this is the layer 3 switch for those vlans and connectes to other sites. Now I run EIGRP on this 3750 to the other sites. I have say vlan 1 = and vlan 2 = on this 3750. vlan 2 is a new one that I added.


* vlan 1 takes part in eigrp

* vlan 2 doesnot take part and any other sites dont have this subnet in the routing table of them.

* checked the show ip eigrp interface on the 3750 and can see vlan 1 and vlan 2 on the interfaces. the eigrp topology on the 3750 also shows that both vlan 1 and vlan2 connected and they are redist in eigrp. I dnt have auto summary in the eigrp.

please help

why is vlan 2 not advertised to next hop?



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ktwaddell Fri, 10/09/2009 - 02:50
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We need to see the config of the 3750 and a sh ip route for both vlans as well to start off with.



glen.grant Fri, 10/09/2009 - 03:39
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Do have ip classless in your config ???

Richard Burts Fri, 10/09/2009 - 04:24
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I agree with Kev that we need additional information to be able to understand what is the problem in your situation. In addition to what he has requested I believe that it might be helpful if you would post the output of show ip interface brief.




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