RE: lan interface ip ospf network point-to-multipoint flapping

From: Smith, Jason (JASmith@nuvox.com)
Date: Thu Jun 14 2007 - 11:49:05 ART


Make sure that you have ip proxy-arp disabled on the interfaces!

Thanks,
Jason Smith
CCIE #12097
NuVox Communications
Work 864-331-7716
Cell 864-561-7172
 

-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Tony Schaffran
Sent: Thursday, June 14, 2007 10:02 AM
To: 'ccie ccie'; ccielab@groupstudy.com
Subject: RE: lan interface ip ospf network point-to-multipoint flapping

This sounds like an MTU mismatch.

Check your MTU's on each interface and correct as necessary according to
your requirements.

Tony Schaffran
Network Analyst
CCIE #11071
CCNP, CCNA, CCDA,
NNCDS, NNCSS, CNE, MCSE
 
www.cconlinelabs.com
Your #1 choice for online Cisco rack rentals.
 

-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
ccie
ccie
Sent: Wednesday, June 13, 2007 11:55 AM
To: ccielab@groupstudy.com
Subject: Fwd: lan interface ip ospf network point-to-multipoint flapping

Hi All,

I have 2 devices directly connected (router, switch), pingable running
ospf
connected to bb ospf.
When I set the type to point-to-multipoint, ospf is flapping.

I see that the router's hello are not received from the switch even
tough
they are send. There is no acl, no broadcast issue as its a lan link.
What
could i be missing ?

Thanks for your help

Biggie



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