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New Member

IP-EIGRP(Default-IP-Routing-Table:1):

I have cisco 6509. Gateways vlan 1 10.1.1.1 and vlan 2 10.1.2.1 are configured two here. In addition to these there are vlan and others, and with them everything is OK. Everything works, but that's falling out such messages.

IP-EIGRP(Default-IP-Routing-Table:1): Neighbor 10.1.2.1 not on common subnet for Vlan1

IP-EIGRP(Default-IP-Routing-Table:1): Neighbor 10.1.1.1 not on common subnet for Vlan2

Read here http://www.cisco.com/en/US/tech/tk365/technologies_configuration_example09186a0080093f09.html to no avail.

what to do?

Everyone's tags (4)
1 ACCEPTED SOLUTION

Accepted Solutions

IP-EIGRP(Default-IP-Routing-Table:1):

Check the EIGRP peering neighbor whether are the on the same subnet.

7 REPLIES

IP-EIGRP(Default-IP-Routing-Table:205):

What is that you are trying to accomplish, default-route failover ?

New Member

IP-EIGRP(Default-IP-Routing-Table:1):

ip route 0.0.0.0 0.0.0.0 10.1.3.1

Everything works. But there is always a message.

Cisco Employee

IP-EIGRP(Default-IP-Routing-Table:1):

Sergey,

The router is telling you that it is receiving EIGRP Hello packets from routers that do not belong to the same IP subnet as the interface on which the Hello packets were received. This is always a sign of a misconfiguration.

Would you mind posting the configuration of your interfaces Vlan1 and Vlan2?

Best regards,

Peter

New Member

IP-EIGRP(Default-IP-Routing-Table:1):

interface Vlan1

  ip address 10.0.3.1 255.255.255.0 secondary

  ip address 10.1.1.1 255.255.255.0

  ip helper-address 10.1.10.2

  ip helper-address 10.1.10.3

  no ip redirects

  ip flow ingress

interface Vlan2

ip address 10.0.2.1 255.255.255.0 secondary

ip address 10.1.2.1 255.255.255.0

ip helper-address 10.1.10.2

ip helper-address 10.1.10.3

no ip redirects

no ip unreachables

ip flow ingress

I understand that the switch to the wrong address swears in packages, but I can not understand how to take these wrong packets?

Cisco Employee

IP-EIGRP(Default-IP-Routing-Table:1):

Sergey,

Thank you. As you can see, the complaints are absolutely logical: your Vlan1 is in 10.1.1.0/24 while the EIGRP peer is addressed with 10.1.2.1, and your Vlan2 is in 10.1.2.0/24 while the EIGRP peer is addressed with 10.1.1.1.

Either the two offending EIGRP routers are connected to wrong VLANs (they should be exchanged), or they are misconfigured and their IP addresses are erroneously reversed.

Best regards,

Peter

IP-EIGRP(Default-IP-Routing-Table:1):

Check the EIGRP peering neighbor whether are the on the same subnet.

New Member

IP-EIGRP(Default-IP-Routing-Table:1):

I've found - from the network 10.1.2.0/24 had two connections and one of the ports was in vlan 1. Thanks for your help.

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