hope you don't mind me bringing this back public. I saw no other responses and I was curious so I've done some further research based on your configuration. The major difference in my setup and yours is frame relay. I am using two point-to-point serial links. too complicated for me to tear down my current setup to emulate your frame.
methodology: 1) set everything up as best I can based on your configurations. At this point, just plain old ordinary OSPF areas. C 222.222.222.8 is directly connected, Loopback1001 172.16.0.0/16 is variably subnetted, 3 subnets, 2 masks O E2 172.16.10.0/24 [110/20] via 192.168.1.18, 00:04:47, Serial0 [110/20] via 192.168.1.34, 00:04:47, Serial1 O E2 172.16.11.0/24 [110/20] via 192.168.1.18, 00:04:47, Serial0 [110/20] via 192.168.1.34, 00:04:47, Serial1 10.0.0.0/16 is subnetted, 1 subnets O IA 10.1.0.0 [110/74] via 192.168.1.34, 00:04:48, Serial1 [110/74] via 192.168.1.18, 00:04:48, Serial0 192.168.1.0/28 is subnetted, 4 subnets C 192.168.1.64 is directly connected, Loopback2 C 192.168.1.32 is directly connected, Serial1 C 192.168.1.48 is directly connected, Loopback1 C 192.168.1.16 is directly connected, Serial0 Router_8# as you can see, all routes are shown as reachable via both of the serial ports. 2) turn area 1 into a stub area: 10.0.0.0/16 is subnetted, 1 subnets O IA 10.1.0.0 [110/74] via 192.168.1.34, 00:01:50, Serial1 [110/74] via 192.168.1.18, 00:01:50, Serial0 192.168.1.0/28 is subnetted, 4 subnets C 192.168.1.64 is directly connected, Loopback2 C 192.168.1.32 is directly connected, Serial1 C 192.168.1.48 is directly connected, Loopback1 C 192.168.1.16 is directly connected, Serial0 O*IA 0.0.0.0/0 [110/65] via 192.168.1.34, 00:01:51, Serial1 [110/65] via 192.168.1.18, 00:01:51, Serial0 Router_8# exactly as expected. the two external routes in the 172 range are not passed into the stub area. 3) turn area 1 into a totally subby area ( love that term! I can still hear my ACRC instructor intoning it just like a Valley Girl ) show ip ospf Area 1 Number of interfaces in this area is 2 It is a stub area, no summary LSA in this area generates stub default route with cost 1 192.168.1.0/28 is subnetted, 4 subnets C 192.168.1.64 is directly connected, Loopback2 C 192.168.1.32 is directly connected, Serial1 C 192.168.1.48 is directly connected, Loopback1 C 192.168.1.16 is directly connected, Serial0 O*IA 0.0.0.0/0 [110/65] via 192.168.1.34, 00:01:01, Serial1 [110/65] via 192.168.1.18, 00:01:01, Serial0 Router_8# again - everything is as expected 4) change from totally stubby to NSSA ( kinda sorta stubby :-> ) router ospf 200 log-adjacency-changes area 1 nssa network 10.0.0.0 0.255.255.255 area 0 network 192.168.1.0 0.0.0.255 area 1 ! 10.0.0.0/16 is subnetted, 1 subnets O IA 10.1.0.0 [110/74] via 192.168.1.34, 00:00:25, Serial1 [110/74] via 192.168.1.18, 00:00:25, Serial0 192.168.1.0/28 is subnetted, 4 subnets C 192.168.1.64 is directly connected, Loopback2 C 192.168.1.32 is directly connected, Serial1 C 192.168.1.48 is directly connected, Loopback1 C 192.168.1.16 is directly connected, Serial0 Router_8# again - completely as expected. the inter-area route in the 10. network is seen, but the two external routes in the 172 network are not seen. 5) tweak the NSSA router ospf 200 log-adjacency-changes area 1 nssa default-information-originate network 10.0.0.0 0.255.255.255 area 0 network 192.168.1.0 0.0.0.255 area 1 ! 10.0.0.0/16 is subnetted, 1 subnets O IA 10.1.0.0 [110/74] via 192.168.1.34, 00:00:01, Serial1 [110/74] via 192.168.1.18, 00:00:01, Serial0 192.168.1.0/28 is subnetted, 4 subnets C 192.168.1.64 is directly connected, Loopback2 C 192.168.1.32 is directly connected, Serial1 C 192.168.1.48 is directly connected, Loopback1 C 192.168.1.16 is directly connected, Serial0 O*N2 0.0.0.0/0 [110/1] via 192.168.1.34, 00:00:02, Serial1 [110/1] via 192.168.1.18, 00:00:02, Serial0 Router_8# as you can see, step by step, I get the expected result every time. variables - things that differ in my setup - 1) point-to-point serial links instead of frame relay 2) secondary address in the ethernet port of the area 1 router - R8 in my case, R3 in your case. I use loopbacks instead. So - I am unable to duplicate your problem in my setup. you don't indicate the configurations of the interfaces, but I am now thinking something in your frame relay setup. I did not see anything resembling this problem in the TAC bug database. Not that I read all of them :-> I don't have a solution, but I certainly admire the problem. Chuck ----- Original Message ----- From: "Wei Zhu" To: "The Long and Winding Road" Sent: Thursday, 02 January, 2003 7:48 PM Subject: Re: OSPF stub/stub no-summary O*IA routing table entry [7:60088] > Thank you Chuck. Finally it worked with totally stubby, but this time the nssa didn't work, I tried several times, upgraded IOS to 12.2.13. Here I gave some brief configuration, the interface configuration are all frame-relay subinterface point-to point . > > The router configuration on R1: > router ospf 200 > log-adjacency-changes > redistribute connected subnets route-map passext > network 10.0.0.0 0.255.255.255 area 0 > ! > ip classless > no ip http server > ! > access-list 1 permit 172.16.10.0 > access-list 1 permit 172.16.11.0 > route-map passext permit 10 > match ip address 1 > > The router configuration on R2: > router ospf 200 > log-adjacency-changes > area 1 nssa default-information-originate > network 10.0.0.0 0.255.255.255 area 0 > network 192.168.1.0 0.0.0.255 area 1 > > The router configuration on R3: > router ospf 200 > log-adjacency-changes > area 1 nssa > network 192.168.1.0 0.0.0.255 area 1 > > The show ip route on R3: > Gateway of last resort is 192.168.1.33 to network 0.0.0.0 > > 10.0.0.0/24 is subnetted, 2 subnets > O IA 10.2.2.0 [110/4686] via 192.168.1.33, 00:00:01, Serial0.312 > [110/4686] via 192.168.1.17, 00:00:01, Serial0.302 > O IA 10.1.1.0 [110/3124] via 192.168.1.33, 00:00:01, Serial0.312 > [110/3124] via 192.168.1.17, 00:00:01, Serial0.302 > 192.168.1.0/28 is subnetted, 4 subnets > C 192.168.1.64 is directly connected, Ethernet0 > C 192.168.1.32 is directly connected, Serial0.312 > O 192.168.1.48 [110/1572] via 192.168.1.66, 00:00:01, Ethernet0 > C 192.168.1.16 is directly connected, Serial0.302 > O*N2 0.0.0.0/0 [110/1] via 192.168.1.33, 00:00:01, Serial0.312 > > Thanks > Wei > > ----- Original Message ----- > From: "The Long and Winding Road" > To: > Sent: Wednesday, January 01, 2003 10:12 PM > Subject: Re: OSPF stub/stub no-summary O*IA routing table entry [7:60088] > > > > ""Wei Zhu"" wrote in message > > [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > > > The Router connections are as following, R1 has 1 frame relay circuit to > > R2, > > > R2 has 2 frame relay circuits to R3, R2 is the ABR, R1 in Area 0, and R3 > > in > > > area 1. > > > R1 > > > / > > > / > > > R2 > > > / / > > > / / > > > R3 > > > On R1, there is a redistribute entry. The two ip address on R2 to R3 side > > > are 192.168.1.33/28, 192.168.1.17/28. The IOS is 12.2(1d). > > > When enable area 1 as a stub area, the O* IA entry on R3: > > > O*IA 0.0.0.0/0 [110/1563] via 192.168.1.33 > > > 0.0.0.0/0 [110/1563] via 192.168.1.17 > > > When enable area 1 as a totally stub area, the O* IA entry on R3: > > > O*IA 0.0.0.0/0 [110/1563] via 192.168.1.33 (the 192.168.1.17 entry > > > disappeared) > > > > > > It seems that in totally stub area(stub no-summary), the default traffic > > > cannot be load balanced between the two circuits. > > > Can anyone explain this? > > > > > > sorry - can't duplicate your results. in my test bed, everything operated > > precisely as expected. 12.1.5T10 and 12.2.1D on the roputers in question. > > > > might want to check your configs again. depending on what you have been > > doing, a phenomenon known as artifact can distort results. Reload helps. > > > > otherwise, if you can document, pass along your configs, and I can try doing > > things exactly the way you do them. > > > > HTH > > > > Chuck > > > > > > > > > > > > > > Thanks > > > Wei [EMAIL PROTECTED]><J<~7iYB'z;)I( Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=60242&t=60242 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]