nanog mailing list archives
Re: [eng/rtg] changing loopbacks
From: Bruce Pinsky <bep () whack org>
Date: Thu, 29 Sep 2005 13:25:48 -0700
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Randy Bush wrote:
so i have junipers, ciscos, and a few <gasp> zebras in an ospf and ibgp mesh. they're peering via loopbacks, of course. unfortunately, i need to recover the space from which the loopbacks are taken. of course, i would like to do so with minimal disruption. i am thinking of something like the following: o add second loopbacks to all routers with new address in new block o set up ibgp peerings to new addresses from existing peerings o change the source of routing updates to new addresses o remove old peerings o remove old loopbacks what [else] am i missing?
In addition to what others have said, I'd ask: - - Any ACL's anywhere that filter based on the old loopbacks? - - Any VTY access controls on the router based on the old loopbacks? - - Any external systems like authentication servers, management systems, etc, etc that need the old loopbacks and can't dynamically adapt? - - Any internal routing policies that reference the old loopbacks? - - Any DNS entries that need to be migrated (CNAME->A references)? - -- ========= bep -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.0 (MingW32) iD8DBQFDPE3ME1XcgMgrtyYRApizAKDUz+80NvW2tdMfyivgLGA8+uJ1dQCdF54a VzUeshCuqbV0dlI3D3Poqxw= =jOI/ -----END PGP SIGNATURE-----
Current thread:
- [eng/rtg] changing loopbacks Randy Bush (Sep 29)
- Re: [eng/rtg] changing loopbacks David Sinn (Sep 29)
- Re: [eng/rtg] changing loopbacks Randy Bush (Sep 29)
- RE: [eng/rtg] changing loopbacks Neil J. McRae (Sep 29)
- Re: [eng/rtg][vendor specific] changing loopbacks Warren Kumari (Sep 29)
- Re: [eng/rtg] changing loopbacks Ian Dickinson (Sep 29)
- Re: [eng/rtg] changing loopbacks Wayne E. Bouchard (Sep 29)
- Re: [eng/rtg] changing loopbacks Christopher L. Morrow (Sep 29)
- Re: [eng/rtg] changing loopbacks Sean Figgins (Sep 30)
- Re: [eng/rtg] changing loopbacks Randy Bush (Sep 29)
- Re: [eng/rtg] changing loopbacks David Sinn (Sep 29)
- Re: [eng/rtg] changing loopbacks Jake Khuon (Sep 29)
- <Possible follow-ups>
- Re: [eng/rtg] changing loopbacks Austin (Sep 30)