Hi guys / gals,
Here is an interesting problem that I am struggling with at present
Area 4 of my OSPF network is configured as NSSA and has 3 routers in it.
Router 1 is the ABR that connects to the backbone, Router 2 is the ASBR that
is redistributing some IGRP networks into area 4 and Router 3 is just an
internal area 4 router. They are connected together over one ethernet.
I would like to set the "P" bit on the type 7 LSA's that the ASBR produces
to zero, so that the ABR (r1) will NOT convert these to Type 5's and NOT put
them into the backbone (see Doyle, p483 if you dont know what I mean)
the closest command I can come up with is the "area 4 nssa no-redistribute"
, which I thought would work when I typed it in on R2 (the ASBR) - but this
seems to block the production of the type 7 LSA altogether, so that R1 and
R3 can no longer see the IGRP routes at all
If I type the "area 4 nssa no-redistribute" on the ABR (R1) then this has no
effect whatsoever, and the type 7 routes still get converted to type 5, and
flooded into the backbone. Doyle says this command should be implemented on
the ASBR not a seperate ABR so this doesn't surprise me too much
Does anyone know how to do this?
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