cancel
Showing results for 
Search instead for 
Did you mean: 
cancel
4317
Views
0
Helpful
7
Replies

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

Sergey Prishchepa
Spotlight
Spotlight

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?

1 Accepted Solution

Accepted Solutions

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

View solution in original post

7 Replies 7

rizwanr74
Level 7
Level 7

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

ip route 0.0.0.0 0.0.0.0 10.1.3.1

Everything works. But there is always a message.

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

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?

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

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

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.

Getting Started

Find answers to your questions by entering keywords or phrases in the Search bar above. New here? Use these resources to familiarize yourself with the community:

Innovations in Cisco Full Stack Observability - A new webinar from Cisco