Re: Not on common subnet in EIGRP

From: James Ko (bacchus21@gmail.com)
Date: Thu Dec 07 2006 - 14:39:50 ART


Hello, Brian.

Thank you so much for your reply and advice.
According to your message, it seems to me that this error message is more
related with EIGRP hello, not subnet problem.

What's the difference between hellos being received across a LAN and hellos
being received across a LAN ?

Is it alright if I get back to you when I get more detailed information?

Thanks in advance!!

2006/12/8, Brian Dennis <bdennis@internetworkexpert.com>:
>
> Are the EIGRP hellos being received across a LAN or WAN interface? If
> it's a WAN interface then you may have a remote router with a L3 to L2
> mapping to the router in question that is sending the EIGRP hellos. If
> it's a LAN interface then possibly another router with EIGRP enabled is
> in the same VLAN.
>
> When trying to solve this issue you should look at all routers with any
> "possible" connection to the router in question.
>
> HTH,
>
> Brian Dennis, CCIE4 #2210 (R&S/ISP-Dial/Security/SP)
> bdennis@internetworkexpert.com
>
> Internetwork Expert, Inc.
> http://www.InternetworkExpert.com
> Toll Free: 877-224-8987
> Direct: 775-745-6404 (Outside the US and Canada)
>
>
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
> James Ko
> Sent: Thursday, December 07, 2006 7:43 AM
> To: ccielab@groupstudy.com
> Subject: Not on common subnet in EIGRP
>
> Hello, all.
>
> Does anyone know about 'Not on common subnet' in EIGRP?
> I know if an EIGRP neighbor is located in different subnet, the message
> will
> appear.
> But, I can't find any configuration mistakes. Is there any other
> possibilities causing the message?
>
> One piece of advice will save me a lot.
> Thanks in advance!!
>
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