Hunt, I guess you don't have the 203.147.154.0 route in the middle router. however, you have a defaut route in it. So, you will experience a routing loop. Check you tunnel configuration as well. see the following from u :
I have an OSPF connectivity problem. I have 3 routers as follows: > > OSPF Area 203.147.188.0 OSPF Area 0 > Gw1.bne2 ------------------------ Gw2.bne -------------------Gw1.bne > > Gw1.bne2 is connecting to Gw2.bne with Serial 0/0:0 (203.147.255.186 /30) > Gw2.bne is connecting back to Gw1.bne2 with Serial 0/0:0 (203.147.255.185 > /30) > > Gw2.bne is also connected to Gw1.bne with FastEth 0/0 (202.139.236.2 /24) > Gw1.bne is connecting back to Gw2.bne with FastEth 0/1 (202.139.236.254 /24) > > Now I have 5 static routes at Gw1.bne2 (the left most Router) that I want to > redistributed into OSPF. > > ip route 203.147.154.0 255.255.255.128 203.147.188.65 > ip route 203.147.154.128 255.255.255.248 203.147.188.68 > ip route 203.147.154.136 255.255.255.248 203.147.188.69 > ip route 203.147.154.144 255.255.255.252 203.147.188.66 > ip route 203.147.154.148 255.255.255.252 203.147.188.67 > > controller E1 0/0 > channel-group 0 timeslots 1-31 > ! > ! > interface Tunnel0 > description BNE2->Avior > ip address 10.255.255.2 255.255.255.252 > no ip route-cache cef > tunnel source 203.147.255.186 > tunnel destination 203.147.190.4 > ! > interface FastEthernet0/0 > no ip address > ip route-cache flow > speed 100 > full-duplex > ! > interface FastEthernet0/0.5 > encapsulation dot1Q 5 > ! > interface FastEthernet0/0.10 > encapsulation dot1Q 10 > ip address 10.15.15.254 255.255.255.0 secondary > ip address 203.147.188.254 255.255.255.0 > ip access-group pfilter in > ip accounting access-violations > ip nbar protocol-discovery > ! > interface FastEthernet0/0.999 > encapsulation dot1Q 999 > ip address 10.2.101.1 255.255.0.0 > ! > interface Serial0/0:0 > description N7065870L to 96 Lytton Rd > ip address 203.147.255.186 255.255.255.252 > ip nbar protocol-discovery > ip route-cache flow > load-interval 30 > service-policy output voippol > ! > router ospf 7496 > log-adjacency-changes > redistribute connected > redistribute static subnets > passive-interface FastEthernet0/0.999 > network 203.147.188.0 0.0.0.255 area 203.147.188.0 > network 203.147.255.184 0.0.0.3 area 203.147.188.0 > > At Gw1.bne2, it shows the subnets are learned via "statics" > > gw1.bne2#sh ip route 203.147.154.136 > Routing entry for 203.147.154.136/29 > Known via "static", distance 1, metric 0 > Redistributing via ospf 7496 > Advertised by ospf 7496 subnets > Routing Descriptor Blocks: > * 203.147.188.69 > Route metric is 0, traffic share count is 1 > > When I goto Gw2.bne (middle router), I can see the routes in the OSPF > Topology Table (all of them are learned from 203.147.255.186 - Gw1.bne2), > but not the its routing table:- > > N.B: I also tried to do a clear ip route 203.147.144.0/20, but no help. > The same route came straight back > > Type-5 AS External Link States > > 203.147.154.0 203.147.255.186 572 0x80000002 0xAC01 0 > 203.147.154.128 203.147.255.186 573 0x80000002 0xA40D 0 > 203.147.154.136 203.147.255.186 573 0x80000002 0x6246 0 > 203.147.154.144 203.147.255.186 573 0x80000002 0xFF9F 0 > 203.147.154.148 203.147.255.186 573 0x80000002 0xE5B4 0 > > gw2.bne# sh ip route 203.147.154.136 > Routing entry for 203.147.144.0/20, supernet > Known via "ospf 7496", distance 110, metric 3, type inter area > Last update from 202.139.236.254 on FastEthernet0/0, 00:17:48 ago > Routing Descriptor Blocks: > * 202.139.236.254, from 203.147.255.156, 00:17:48 ago, via FastEthernet0/0 > Route metric is 3, traffic share count is 1 > > However, if I goto Gw1.bne (the rightmost router), it can see all 5 subnets > in the OSPF Topoloy Table and Routing Table > > Type-5 AS External Link States > > 203.147.154.0 203.147.255.186 867 0x80000002 0xAC01 0 > 203.147.154.128 203.147.255.186 867 0x80000002 0xA40D 0 > 203.147.154.136 203.147.255.186 867 0x80000002 0x6246 0 > 203.147.154.144 203.147.255.186 867 0x80000002 0xFF9F 0 > 203.147.154.148 203.147.255.186 867 0x80000002 0xE5B4 0 > > gw1.bne#sh ip route 203.147.154.136 > Routing entry for 203.147.154.136/29 > Known via "ospf 7496", distance 110, metric 20, type extern 2, forward > metric 52 > Redistributing via ospf 7496 > Last update from 202.139.236.2 on FastEthernet0/1, 00:49:30 ago > Routing Descriptor Blocks: > * 202.139.236.2, from 203.147.255.186, 00:49:30 ago, via FastEthernet0/1 > Route metric is 20, traffic share count is 1 > > As a result, when I do a trace from Gw1.bne (the rightmost router), it > points it to Gw2.bne, but Gw2.bne points it back - Routing Loop :( > > gw1.bne#trace 203.147.154.136 > > Type escape sequence to abort. > Tracing the route to 203.147.154.136 > > 1 fa0-0.gw2.bne.webcentral.com.au (202.139.236.2) 0 msec 4 msec 0 msec > 2 fa0-1.gw1.bne.webcentral.com.au (202.139.236.254) 4 msec 4 msec 0 msec > 3 fa0-0.gw2.bne.webcentral.com.au (202.139.236.2) 0 msec 4 msec 4 msec > 4 fa0-1.gw1.bne.webcentral.com.au (202.139.236.254) 4 msec 4 msec 4 msec > 5 fa0-0.gw2.bne.webcentral.com.au (202.139.236.2) 4 msec 4 msec 4 msec > 6 fa0-1.gw1.bne.webcentral.com.au (202.139.236.254) 4 msec 4 msec 0 msec > 7 fa0-0.gw2.bne.webcentral.com.au (202.139.236.2) 4 msec 4 msec 0 msec > 8 fa0-1.gw1.bne.webcentral.com.au (202.139.236.254) 4 msec 4 msec 4 msec > 9 fa0-0.gw2.bne.webcentral.com.au (202.139.236.2) 4 msec 4 msec 4 msec > 10 fa0-1.gw1.bne.webcentral.com.au (202.139.236.254) 4 msec 4 msec 4 msec > 11 fa0-0.gw2.bne.webcentral.com.au (202.139.236.2) 4 msec 4 msec 4 msec > 12 fa0-1.gw1.bne.webcentral.com.au (202.139.236.254) 4 msec 4 msec 4 msec > 13 fa0-0.gw2.bne.webcentral.com.au (202.139.236.2) 4 msec 4 msec 4 msec > 14 fa0-1.gw1.bne.webcentral.com.au (202.139.236.254) 4 msec 8 msec 4 msec > 15 fa0-0.gw2.bne.webcentral.com.au (202.139.236.2) 4 msec 8 msec 4 msec > 16 fa0-1.gw1.bne.webcentral.com.au (202.139.236.254) 4 msec 4 msec 8 msec > 17 fa0-0.gw2.bne.webcentral.com.au (202.139.236.2) 4 msec 4 msec 4 msec > 18 fa0-1.gw1.bne.webcentral.com.au (202.139.236.254) 8 msec 8 msec 4 msec > 19 fa0-0.gw2.bne.webcentral.com.au (202.139.236.2) 8 msec 8 msec 4 msec > 20 fa0-1.gw1.bne.webcentral.com.au (202.139.236.254) 4 msec 4 msec 8 msec > 21 fa0-0.gw2.bne.webcentral.com.au (202.139.236.2) 12 msec 4 msec 4 msec > 22 fa0-1.gw1.bne.webcentral.com.au (202.139.236.254) 4 msec 8 msec 8 msec > 23 fa0-0.gw2.bne.webcentral.com.au (202.139.236.2) 8 msec 8 msec 8 msec > 24 fa0-1.gw1.bne.webcentral.com.au (202.139.236.254) 4 msec 8 msec 8 msec > 25 fa0-0.gw2.bne.webcentral.com.au (202.139.236.2) 4 msec 8 msec 12 msec > 26 fa0-1.gw1.bne.webcentral.com.au (202.139.236.254) 12 msec 8 msec 8 msec > 27 fa0-0.gw2.bne.webcentral.com.au (202.139.236.2) 8 msec 4 msec 8 msec > 28 fa0-1.gw1.bne.webcentral.com.au (202.139.236.254) 8 msec 8 msec 8 msec > 29 fa0-0.gw2.bne.webcentral.com.au (202.139.236.2) 8 msec 8 msec 8 msec > 30 fa0-1.gw1.bne.webcentral.com.au (202.139.236.254) 8 msec 8 msec 8 msec > gw1.bne# > > Also, I have attached the config for Gw2.bne (Middle Router):- > > controller E1 0/0 > channel-group 0 timeslots 1-31 > ! > ! > interface Loopback0 > description Management > ip address 10.1.1.6 255.255.0.0 > ! > interface FastEthernet0/0 > ip address 202.139.236.2 255.255.255.0 > ip ospf message-digest-key 1 md5 7 0205534119541C14644F > speed 100 > full-duplex > random-detect > ! > interface Serial0/0:0 > description N7065870L to Lvl5 Wickham St > ip address 203.147.255.185 255.255.255.252 > ip nbar protocol-discovery > ip route-cache flow > service-policy output guaranteed > ! > router ospf 7496 > log-adjacency-changes > area 0 authentication message-digest > network 202.139.236.0 0.0.0.255 area 0 > network 203.147.255.184 0.0.0.3 area 203.147.188.0 > ! > ip flow-export source Loopback0 > ip flow-export version 5 > ip flow-export destination 203.147.190.7 9992 > ip classless > ip route 0.0.0.0 0.0.0.0 202.139.236.254 > ip route 203.32.10.0 255.255.255.0 203.147.255.186 > ip route 203.147.188.0 255.255.255.0 203.147.255.186 > no ip http server > > So why would Gw2.bne (the middle router) passed the Redistributed Routes to > Gw1.bne while itself (Gw2.bne) is using the supernet?? > > Thanks a lot > > Best Regards, > Hunt Lee Hunt Lee wrote: > I have an OSPF connectivity problem. I have 3 routers as follows: > > OSPF Area 203.147.188.0 OSPF Area 0 > Gw1.bne2 ------------------------ Gw2.bne -------------------Gw1.bne > > Gw1.bne2 is connecting to Gw2.bne with Serial 0/0:0 (203.147.255.186 /30) > Gw2.bne is connecting back to Gw1.bne2 with Serial 0/0:0 (203.147.255.185 > /30) > > Gw2.bne is also connected to Gw1.bne with FastEth 0/0 (202.139.236.2 /24) > Gw1.bne is connecting back to Gw2.bne with FastEth 0/1 (202.139.236.254 /24) > > Now I have 5 static routes at Gw1.bne2 (the left most Router) that I want to > redistributed into OSPF. > > ip route 203.147.154.0 255.255.255.128 203.147.188.65 > ip route 203.147.154.128 255.255.255.248 203.147.188.68 > ip route 203.147.154.136 255.255.255.248 203.147.188.69 > ip route 203.147.154.144 255.255.255.252 203.147.188.66 > ip route 203.147.154.148 255.255.255.252 203.147.188.67 > > controller E1 0/0 > channel-group 0 timeslots 1-31 > ! > ! > interface Tunnel0 > description BNE2->Avior > ip address 10.255.255.2 255.255.255.252 > no ip route-cache cef > tunnel source 203.147.255.186 > tunnel destination 203.147.190.4 > ! > interface FastEthernet0/0 > no ip address > ip route-cache flow > speed 100 > full-duplex > ! > interface FastEthernet0/0.5 > encapsulation dot1Q 5 > ! > interface FastEthernet0/0.10 > encapsulation dot1Q 10 > ip address 10.15.15.254 255.255.255.0 secondary > ip address 203.147.188.254 255.255.255.0 > ip access-group pfilter in > ip accounting access-violations > ip nbar protocol-discovery > ! > interface FastEthernet0/0.999 > encapsulation dot1Q 999 > ip address 10.2.101.1 255.255.0.0 > ! > interface Serial0/0:0 > description N7065870L to 96 Lytton Rd > ip address 203.147.255.186 255.255.255.252 > ip nbar protocol-discovery > ip route-cache flow > load-interval 30 > service-policy output voippol > ! > router ospf 7496 > log-adjacency-changes > redistribute connected > redistribute static subnets > passive-interface FastEthernet0/0.999 > network 203.147.188.0 0.0.0.255 area 203.147.188.0 > network 203.147.255.184 0.0.0.3 area 203.147.188.0 > > At Gw1.bne2, it shows the subnets are learned via "statics" > > gw1.bne2#sh ip route 203.147.154.136 > Routing entry for 203.147.154.136/29 > Known via "static", distance 1, metric 0 > Redistributing via ospf 7496 > Advertised by ospf 7496 subnets > Routing Descriptor Blocks: > * 203.147.188.69 > Route metric is 0, traffic share count is 1 > > When I goto Gw2.bne (middle router), I can see the routes in the OSPF > Topology Table (all of them are learned from 203.147.255.186 - Gw1.bne2), > but not the its routing table:- > > N.B: I also tried to do a clear ip route 203.147.144.0/20, but no help. > The same route came straight back > > Type-5 AS External Link States > > 203.147.154.0 203.147.255.186 572 0x80000002 0xAC01 0 > 203.147.154.128 203.147.255.186 573 0x80000002 0xA40D 0 > 203.147.154.136 203.147.255.186 573 0x80000002 0x6246 0 > 203.147.154.144 203.147.255.186 573 0x80000002 0xFF9F 0 > 203.147.154.148 203.147.255.186 573 0x80000002 0xE5B4 0 > > gw2.bne# sh ip route 203.147.154.136 > Routing entry for 203.147.144.0/20, supernet > Known via "ospf 7496", distance 110, metric 3, type inter area > Last update from 202.139.236.254 on FastEthernet0/0, 00:17:48 ago > Routing Descriptor Blocks: > * 202.139.236.254, from 203.147.255.156, 00:17:48 ago, via FastEthernet0/0 > Route metric is 3, traffic share count is 1 > > However, if I goto Gw1.bne (the rightmost router), it can see all 5 subnets > in the OSPF Topoloy Table and Routing Table > > Type-5 AS External Link States > > 203.147.154.0 203.147.255.186 867 0x80000002 0xAC01 0 > 203.147.154.128 203.147.255.186 867 0x80000002 0xA40D 0 > 203.147.154.136 203.147.255.186 867 0x80000002 0x6246 0 > 203.147.154.144 203.147.255.186 867 0x80000002 0xFF9F 0 > 203.147.154.148 203.147.255.186 867 0x80000002 0xE5B4 0 > > gw1.bne#sh ip route 203.147.154.136 > Routing entry for 203.147.154.136/29 > Known via "ospf 7496", distance 110, metric 20, type extern 2, forward > metric 52 > Redistributing via ospf 7496 > Last update from 202.139.236.2 on FastEthernet0/1, 00:49:30 ago > Routing Descriptor Blocks: > * 202.139.236.2, from 203.147.255.186, 00:49:30 ago, via FastEthernet0/1 > Route metric is 20, traffic share count is 1 > > As a result, when I do a trace from Gw1.bne (the rightmost router), it > points it to Gw2.bne, but Gw2.bne points it back - Routing Loop :( > > gw1.bne#trace 203.147.154.136 > > Type escape sequence to abort. > Tracing the route to 203.147.154.136 > > 1 fa0-0.gw2.bne.webcentral.com.au (202.139.236.2) 0 msec 4 msec 0 msec > 2 fa0-1.gw1.bne.webcentral.com.au (202.139.236.254) 4 msec 4 msec 0 msec > 3 fa0-0.gw2.bne.webcentral.com.au (202.139.236.2) 0 msec 4 msec 4 msec > 4 fa0-1.gw1.bne.webcentral.com.au (202.139.236.254) 4 msec 4 msec 4 msec > 5 fa0-0.gw2.bne.webcentral.com.au (202.139.236.2) 4 msec 4 msec 4 msec > 6 fa0-1.gw1.bne.webcentral.com.au (202.139.236.254) 4 msec 4 msec 0 msec > 7 fa0-0.gw2.bne.webcentral.com.au (202.139.236.2) 4 msec 4 msec 0 msec > 8 fa0-1.gw1.bne.webcentral.com.au (202.139.236.254) 4 msec 4 msec 4 msec > 9 fa0-0.gw2.bne.webcentral.com.au (202.139.236.2) 4 msec 4 msec 4 msec > 10 fa0-1.gw1.bne.webcentral.com.au (202.139.236.254) 4 msec 4 msec 4 msec > 11 fa0-0.gw2.bne.webcentral.com.au (202.139.236.2) 4 msec 4 msec 4 msec > 12 fa0-1.gw1.bne.webcentral.com.au (202.139.236.254) 4 msec 4 msec 4 msec > 13 fa0-0.gw2.bne.webcentral.com.au (202.139.236.2) 4 msec 4 msec 4 msec > 14 fa0-1.gw1.bne.webcentral.com.au (202.139.236.254) 4 msec 8 msec 4 msec > 15 fa0-0.gw2.bne.webcentral.com.au (202.139.236.2) 4 msec 8 msec 4 msec > 16 fa0-1.gw1.bne.webcentral.com.au (202.139.236.254) 4 msec 4 msec 8 msec > 17 fa0-0.gw2.bne.webcentral.com.au (202.139.236.2) 4 msec 4 msec 4 msec > 18 fa0-1.gw1.bne.webcentral.com.au (202.139.236.254) 8 msec 8 msec 4 msec > 19 fa0-0.gw2.bne.webcentral.com.au (202.139.236.2) 8 msec 8 msec 4 msec > 20 fa0-1.gw1.bne.webcentral.com.au (202.139.236.254) 4 msec 4 msec 8 msec > 21 fa0-0.gw2.bne.webcentral.com.au (202.139.236.2) 12 msec 4 msec 4 msec > 22 fa0-1.gw1.bne.webcentral.com.au (202.139.236.254) 4 msec 8 msec 8 msec > 23 fa0-0.gw2.bne.webcentral.com.au (202.139.236.2) 8 msec 8 msec 8 msec > 24 fa0-1.gw1.bne.webcentral.com.au (202.139.236.254) 4 msec 8 msec 8 msec > 25 fa0-0.gw2.bne.webcentral.com.au (202.139.236.2) 4 msec 8 msec 12 msec > 26 fa0-1.gw1.bne.webcentral.com.au (202.139.236.254) 12 msec 8 msec 8 msec > 27 fa0-0.gw2.bne.webcentral.com.au (202.139.236.2) 8 msec 4 msec 8 msec > 28 fa0-1.gw1.bne.webcentral.com.au (202.139.236.254) 8 msec 8 msec 8 msec > 29 fa0-0.gw2.bne.webcentral.com.au (202.139.236.2) 8 msec 8 msec 8 msec > 30 fa0-1.gw1.bne.webcentral.com.au (202.139.236.254) 8 msec 8 msec 8 msec > gw1.bne# > > Also, I have attached the config for Gw2.bne (Middle Router):- > > controller E1 0/0 > channel-group 0 timeslots 1-31 > ! > ! > interface Loopback0 > description Management > ip address 10.1.1.6 255.255.0.0 > ! > interface FastEthernet0/0 > ip address 202.139.236.2 255.255.255.0 > ip ospf message-digest-key 1 md5 7 0205534119541C14644F > speed 100 > full-duplex > random-detect > ! > interface Serial0/0:0 > description N7065870L to Lvl5 Wickham St > ip address 203.147.255.185 255.255.255.252 > ip nbar protocol-discovery > ip route-cache flow > service-policy output guaranteed > ! > router ospf 7496 > log-adjacency-changes > area 0 authentication message-digest > network 202.139.236.0 0.0.0.255 area 0 > network 203.147.255.184 0.0.0.3 area 203.147.188.0 > ! > ip flow-export source Loopback0 > ip flow-export version 5 > ip flow-export destination 203.147.190.7 9992 > ip classless > ip route 0.0.0.0 0.0.0.0 202.139.236.254 > ip route 203.32.10.0 255.255.255.0 203.147.255.186 > ip route 203.147.188.0 255.255.255.0 203.147.255.186 > no ip http server > > So why would Gw2.bne (the middle router) passed the Redistributed Routes to > Gw1.bne while itself (Gw2.bne) is using the supernet?? > > Thanks a lot > > Best Regards, > Hunt Lee Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=42428&t=42411 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
