Hi, I have a problem with a re-distrubuted static route which I think I have nailed down to being a problem with the NSSA setting on the remote area.
We have the following topology;
There are point to point links between the CORE and WAN and also the WAN and REMOTE-SITE in their respective areas. Area 0.0.0.10 is set as an NSSA and area 0.0.0.0 as a normal area. On the core switch we issue command
enable ospf originate-default cost 10 type ase-type-1 [/code]This then creates a default route in the WAN switch and a default route in the REMOTE-SITE switch. If I disable the link between the CORE and WAN switches the default route is removed from the WAN switch but the REMOTE-SITE retains its default route.
My question is - why does the default route not come out of the REMOTE-SITE routing table when the link between the WAN and CORE dies. If I change area 0.0.0.10 to a Normal area the route does come out of the REMOTE-SITE table.
We can resolve the problem we are having by changing the REMOTE-SITE to a normal area as it doesn't need to be an NSSA but I'd like to understand this behaviour.