That does look like it would work for me. Thanks for all the input.
-----Original Message----- From: Ivan Pepelnjak [mailto:i...@ioshints.info] Sent: Thursday, July 23, 2009 11:50 AM To: 'Ruben Alvarez'; 'Mateusz Blaszczyk' Cc: cisco-nsp@puck.nether.net Subject: RE: [c-nsp] OSPF NSSA question Hi! You gave me a good reason to finally test this command and document what it does and how it's used in a hub-and-spoke environment: http://wiki.nil.com/OSPF_flooding_filters_in_hub-and-spoke_environment It's exactly what's needed to solve the original problem (but of course you need a static default route on the spoke routers as they lose all OSPF information). Best regards Ivan http://www.ioshints.info/about http://blog.ioshints.info/ > -----Original Message----- > From: Ruben Alvarez [mailto:r...@opusnet.com] > Sent: Wednesday, July 22, 2009 5:17 PM > To: 'Mateusz Blaszczyk'; 'Ivan Pepelnjak' > Cc: cisco-nsp@puck.nether.net > Subject: RE: [c-nsp] OSPF NSSA question > > I'm not sure filtering 'out' would work. Three routers all > have one interface, each connecting to the ABR (which has > four interfaces, three to the routers in area 1 and one in > area 0.) If I'm filtering out, The ABR wouldn't know which > routes are on each of the three routers. Right? The three > routers have thousands of single host routes spread out over > each router. The ABR knows which router has each host and > summarizes to area 0. > > -----Original Message----- > From: Mateusz Blaszczyk [mailto:blah...@gmail.com] > Sent: Wednesday, July 22, 2009 1:10 AM > To: Ivan Pepelnjak > Cc: Ruben Alvarez; cisco-nsp@puck.nether.net > Subject: Re: [c-nsp] OSPF NSSA question > > 2009/7/22 Ivan Pepelnjak <i...@ioshints.info>: > > You're probably looking for the "ip ospf database-filter > all out" command. > > And how the summary LSA with 0/0 would get to the spoke > router if that is filtered out? > (assuming nssa scenario in OP's hub n'spoke topology) > > Best Regards, > > -mat > > _______________________________________________ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
