From: Chuck Larrieu (chuck@xxxxxxxxxxxxx)
Date: Tue Jun 12 2001 - 22:04:41 GMT-3
Just beware of recursive routing in any tunnel situation
Chuck
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Pickell, Aaryn
Sent: Tuesday, June 12, 2001 1:53 PM
To: 'Rick Foltz'; ccielab@groupstudy.com
Subject: RE: ospf over tunnels
Treat tunnels (GRE or IPIP) as regular point to point interfaces. That's
all they are. They just don't have a physical componant. In that sense,
they can be used for routing protocols, just like a T1 or OC3. The only
quirk with tunnels is that if the tunnel destination is learned from the
routing protocol running across the tunnel, then you'll see the tunnel
dropping, since it's path to the tunnel destination is through the tunnel...
which is a recursive loop, and everything dies.
But, other than that, there's no problems with running an RP across the
tunnel interface.
If you're talking a VPN tunnel (IPSEC, etc.), then it's different. That
kind of tunnel shouldn't support an RP.
Aaryn Pickell - CCNP ATM, CCDP, MCSE
Senior Engineer - Routing Protocols
Getronics Inc.
Direct: 713-394-1609
Email:aaryn.pickell@getronics.com
This e-mail message and any attachments are confidential and may be
privileged. If you are not the intended recipient, please notify me
immediately by replying to this message and please destroy all copies of
this message and attachments. Thank you.
> -----Original Message-----
> From: Rick Foltz [mailto:ccie2b@rfoltz.com]
> Sent: Tuesday, June 12, 2001 4:05 PM
> To: ccielab@groupstudy.com
> Subject: ospf over tunnels
>
>
> ok, this is my day for questions, lol. But i know i have read
> on here that you cant ping opposit ends of aq tunnel, with
> extended ping anyways. i have tried this and its true, and
> the tunnels pass traffic for other networks correctly. but if
> they cant send packets directly to each other, how would one
> run ospf over them? any ideas?
> **Please read:http://www.groupstudy.com/list/posting.html
**Please read:http://www.groupstudy.com/list/posting.html
**Please read:http://www.groupstudy.com/list/posting.html
This archive was generated by hypermail 2.1.4 : Thu Jun 13 2002 - 10:31:23 GMT-3