A stub area does'nt carry LSA's with the E bit set, IE, redistributed routes
within the area. Default routes are injected in as type 3 summary LSAs. In
order to inject external LSAs (type 5) into the backbone (as well as all
other routers in the stub area) you must use the NSSA option. Your config
would become:
router ospf 53
redistribute connected subnets
network 192.168.8.42 0.0.0.0 area 10
area 10 nssa
The ABR ospf configuration:
router ospf 53
redistribute connected subnets
redistribute static subnets
network 192.168.8.215 0.0.0.0 area 10
network 192.168.0.41 0.0.0.0 area 0
default-information originate always
area 0 range 192.168.0.0 255.255.255.0
area 10 nssa default-originate
area 10 range 192.168.8.0 255.255.255.0
HTH,
chris
-----Original Message-----
From: Cho Man Fai [mailto:mfcho@hknet.com]
Sent: Thursday, July 27, 2000 1:37 PM
To: cisco-nsp@puck.nether.net
Subject: [nsp] Q: AS5300 and ospf in stub area
Dear all,
I have an as5300 (IP 192.168.8.42) access server running ospf in area 10
stub. When someone is dialed up and connected to it (and get IP
192.168.4.155), I can see the route (a /32 route) is advertised out by
ospf in as5300.
as5300> sh ip route 192.168.4.155
Routing entry for 192.168.4.5/32
Known via "connected", distance 0, metric 0 (connected, via interface)
Redistributing via ospf 53
Advertised by ospf 53 subnets
Routing Descriptor Blocks:
* directly connected, via Async171
Route metric is 0, traffic share count is 1
However, in the ABR, I do not find the route by sh ip route ospf though I
do find the as5300 as a neighbor in "sh ip ospf nei" of the ABR.
Here is my as5300 ospf configuration. It's simple and short, but I donno
what the problem is. If you have any idea, please kindly let me know.
router ospf 53
redistribute connected subnets
network 192.168.8.42 0.0.0.0 area 10
area 10 stub
The ABR ospf configuration:
router ospf 53
redistribute connected subnets
redistribute static subnets
network 192.168.8.215 0.0.0.0 area 10
network 192.168.0.41 0.0.0.0 area 0
default-information originate always
area 0 range 192.168.0.0 255.255.255.0
area 10 stub
area 10 range 192.168.8.0 255.255.255.0
Thanks in advance.
Rgds,
Kenneth Cho
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