Here's what I did: 1) Configured OSPF between a number of routers. Verified all where seeing routes via OSPF.
2) Made the following config additions: ip route 0.0.0.0 0.0.0.0 a.b.c.d ip route 1.2.3.4 255.255.255.255 a.b.c.d router ospf 100 redistribute static subnets where a.b.c.d is a valid next-hop then did a show ip route on the other ospf routers. None show the default route but all show an E2 1.2.3.4/32 route. 3) Removed the "redistribute static subnets". Did a show ip route on the other routers. The 1.2.3.4/32 subnet disappeared. 4) Added a "default-information originate". Did a show ip route on the other OSPF routers and the 0/0 default appears as an E2 route. Cisco doesn't (apparently) treat a 0/0 route as a real route/subnet. For instance, suppose you have a default route defined on a router. Then do a "show ip route 4.5.6.7". If you don't have a prefix which covers this subnet, one might expect it to report the 0/0 resultant route. IMO, this is what it should do. It instead shows a "network not in table" error. Still learning.... Audy Bautista wrote: > > The other day, I simulated the same sceanario but I got opposite results. > When I first added the "default-information originate" after I added a > default router (ip route 0.0.0.0 .0.0.0.0 a.b.c.d), the default route did > not propagate through my OSPF network. But, when I took of that statement > and added the "restribute static subnets" statement, it propagated > successfully. > > Did you add a static default route (ip route 0.0.0.0 .0.0.0.0 a.b.c.d) > before you tried the "default-information originate" statement? > > ""bergenpeak"" wrote in message > [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > > Trying to understand OSPF behavior when generating a default > > route. > > > > If I do a "default-information originate" in OSPF, I see a > > E2 0/0 route on all other OSPF routers. Ok, I understand this. > > > > If I instead define a static default route > > "ip route 0.0.0.0 0.0.0.0 a.b.c.d" and then in my OSPF > > setup do a "redistribute static subnets" (and not the > > default information originate), then the other routers > > do not see a 0/0 route. > > > > Why? > > > > THanks Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=42294&t=42294 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]