Do you have a copy of Doyle's Routing TCP/IP book by any chance? If yes,
check out the discussion on page 483 and Figure 9.42. The Figure looks just
like what you are describing. The discussion says:
"The NSSA External LSA has a flag in its header known as the P-bit. The
NSSA ASBR has the option of setting or clearing the P-bit. If the NSSA's
ABR receives a type 7 LSA with the P-bit set to one, it will translate the
type 7 LSA into a type 5 LSA and flood it throughout the other areas. If
the P-bit is set to zero, no translation will take place and the
destination in the type 7 LSA will not be advertised outside of the NSSA."
Sounds like your P-bit is set! That can be a dangerous thing if you are not
so stubby. &;-) Seriously, hopefully this is a start for figuring out
what's going on. I'm going to try to find out if there's any configuration
parameters related to this P-bit and get back to you if I find anything, or
maybe somebody else knows.
Priscilla
At 03:55 PM 9/12/00, luobin Yang wrote:
>Dear group,
>
>I have such a scenerio:
>
>RouterB is connected to RouterA using Serial 0, RouterC is connected to
>RouterA using Serial 1. Interface E0 of Router A is configured as Area
>0, Serial0(to RouterC) of RouterA is configured as Area 2 (nssa area) ,
>Serial1(to RouterB) of RouterA is configured as Area 1 (totally stubby
>area ).
>
>On routerC, I configured OSPF and EIGRP, Serial 1(to RouterA) is running
>OSPF and belongs to area 2 which is a NSSA. E0 is running EIGRP. If I
>redistribute network of E0 ( for example 172.16.30.0 ) from EIGRP to
>OSPF, I found 172.16.30.0 is redistributed to Area 1 which is a totally
>stubby area.
>
>Does anybody know the reason why?
>
>Thanks a lot!
>Luobin
>
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Priscilla Oppenheimer
http://www.priscilla.com
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