-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hi,
Oliver Boehmer (oboehmer) wrote: > virendra rode // <> wrote on Monday, November 12, 2007 5:53 PM: > >> -----BEGIN PGP SIGNED MESSAGE----- >> Hash: SHA1 >> >> hi, >> >> Just wondering if anyone can shed any light into my confusion. >> >> In looking at a c4506 switch which has ospf running with ip >> default-network 0.0.0.0 / ip default-gateway statements. Not sure the >> reason for these statements when there's routing enabled. I also >> understand that these statements will route packets when there's no >> exact match in the routing table. Also the default route announced >> using the ip default-network command is not propagated by ospf. >> >> Anyway, so being part of maintenance, I reconfigured the switch from >> area 2 to area 0 with its existing configuration and right after that >> I lost its default route even after the LSA was propagated between >> neighbors. >> >> So the first thing I did was to clear the routes include ospf database >> and the default route appeared back, then about a minute I lost the >> default route again. So this time I removed the ip default statements >> which didn't make sense to begin with and this time my default route >> was restored/stable. >> >> So I jumped onto others switches and noticed they were running ospf >> with the ip default statements w/o any problems? > > Hmm, looks like a bug to me. You don't need "ip default-network" with > OSPF if you carry 0.0.0.0/0 in OSPF, I'm considering this as a legacy > command which shouldn't be needed in many networks. > > "ip default-gateway" is only applicable whith "no ip routing" (or for > some platform's boot loader when booting from the network). > > oli > - -------------------------- It also has an ip default-gateway statement which I believe is classfull. regards, /virendra -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.2.2 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFHObRIpbZvCIJx1bcRAntVAJ496fLrOqC/Iawrjg3ngbWUcoE53wCfRfS5 helI7d5RVakSrT8bkULMlvg= =4/b6 -----END PGP SIGNATURE----- _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
