From: Peng Zheng (zpnist@xxxxxxxxx)
Date: Sat Aug 24 2002 - 23:26:39 GMT-3
I'm confused.
Do RTA and RTB ospf process-id need to be same?
--- David Ham <ccieau@hotmail.com> wrote:
> Hunt,
>
> Firstly. RTA and RTB ospf process-id is different
> from each other.
> Secondly. you might need to put network 51.51.0.0
> 0.0.0.63 area 0
>
> Regards,
>
> David Ham
>
>
> >From: Hunt Lee <ciscoforme3@yahoo.com.au>
> >Reply-To: Hunt Lee <ciscoforme3@yahoo.com.au>
> >To: ccielab@groupstudy.com
> >Subject: Route missing in OSPF Topological Database
> >Date: Sat, 24 Aug 2002 22:53:10 +1000 (EST)
> >
> >Here is a partial diagram:
> >
> > 51.51.0.1/26
> > /
> > /
> >1.1.1.1/32 -- RTA --- RTB --- 2.2.2.2/32
> > \
> > \
> > 100.100.100.1/32
> >
> >N.B: The link connecting between RTA & RTB is
> 172.16.1.0/24
> >
> >At RTB:-
> >
> >router ospf 2
> > log-adjacency-changes
> > redistribute eigrp 1 subnets
> > network 2.2.2.2 0.0.0.0 area 2
> > network 51.0.0.0 0.255.255.255 area 0
> > network 100.100.100.1 0.0.0.0 area 2
> > network 172.16.1.0 0.0.0.255 area 0
> >
> >
> >At RTA:-
> >
> >router ospf 1
> > router-id 1.1.1.1
> > log-adjacency-changes
> > network 1.1.1.1 0.0.0.0 area 0
> > network 172.16.1.0 0.0.0.255 area 0
> > distance ospf intra-area 30 inter-area 20
> external 50
> >
> >
> >Here is what I don't understand :( RTB has a
> loopback interface
> >(51.51.0.1/26), which is advertised to RTA as O
> (Intra-Area route).
> >RTA can see this route in it's Routing Table, & can
> ping it too!!
> >But I just can't find it in RTA's OSPF Topological
> database. But if
> >the route is not in RTA's OSPF database, how does
> it get learned by
> >RTA in the first place??
> >
> >RouterB#sh ip route
> >Codes: C - connected, S - static, I - IGRP, R -
> RIP, M - mobile, B - BGP
> > D - EIGRP, EX - EIGRP external, O - OSPF,
> IA - OSPF inter area
> > N1 - OSPF NSSA external type 1, N2 - OSPF
> NSSA external type 2
> > E1 - OSPF external type 1, E2 - OSPF
> external type 2, E - EGP
> > i - IS-IS, L1 - IS-IS level-1, L2 - IS-IS
> level-2, ia - IS-IS inter
> >area
> > * - candidate default, U - per-user static
> route, o - ODR
> > P - periodic downloaded static route
> >
> >Gateway of last resort is not set
> >
> > 51.0.0.0/26 is subnetted, 1 subnets
> >C 51.51.0.0 is directly connected, Loopback1
> > 1.0.0.0/32 is subnetted, 1 subnets
> >O 1.1.1.1 [110/11] via 172.16.1.1, 00:01:17,
> Ethernet0
> > 2.0.0.0/32 is subnetted, 1 subnets
> >C 2.2.2.2 is directly connected, Loopback0
> > 100.0.0.0/32 is subnetted, 1 subnets
> >C 100.100.100.1 is directly connected,
> Loopback2
> > 3.0.0.0/24 is subnetted, 1 subnets
> >D 3.3.3.0 [90/2297856] via 10.1.1.6,
> 00:03:41, Serial0
> > 172.16.0.0/24 is subnetted, 1 subnets
> >C 172.16.1.0 is directly connected, Ethernet0
> > 10.0.0.0/30 is subnetted, 1 subnets
> >C 10.1.1.4 is directly connected, Serial0
> >RouterB#
> >
> >And I can see the route 51.51.0.0/26 in RTA's
> Routing Table..
> >
> >RouterA#sh ip route
> >Codes: C - connected, S - static, I - IGRP, R -
> RIP, M - mobile, B - BGP
> > D - EIGRP, EX - EIGRP external, O - OSPF,
> IA - OSPF inter area
> > N1 - OSPF NSSA external type 1, N2 - OSPF
> NSSA external type 2
> > E1 - OSPF external type 1, E2 - OSPF
> external type 2, E - EGP
> > i - IS-IS, L1 - IS-IS level-1, L2 - IS-IS
> level-2, ia - IS-IS
> >inter area
> > * - candidate default, U - per-user static
> route, o - ODR
> > P - periodic downloaded static route
> >
> >Gateway of last resort is not set
> >
> > 51.0.0.0/26 is subnetted, 1 subnets
> >O 51.51.0.0 [30/11] via 172.16.1.2, 00:02:01,
> Ethernet0
> > 1.0.0.0/18 is subnetted, 1 subnets
> >C 1.1.0.0 is directly connected, Loopback0
> > 2.0.0.0/32 is subnetted, 1 subnets
> >O IA 2.2.2.2 [20/11] via 172.16.1.2, 00:02:01,
> Ethernet0
> > 100.0.0.0/32 is subnetted, 1 subnets
> >O IA 100.100.100.1 [20/11] via 172.16.1.2,
> 00:02:01, Ethernet0
> > 3.0.0.0/24 is subnetted, 1 subnets
> >O E2 3.3.3.0 [50/20] via 172.16.1.2, 00:02:01,
> Ethernet0
> > 172.16.0.0/24 is subnetted, 1 subnets
> >C 172.16.1.0 is directly connected, Ethernet0
> > 10.0.0.0/30 is subnetted, 1 subnets
> >O E2 10.1.1.4 [50/20] via 172.16.1.2, 00:02:03,
> Ethernet0
> >
> >
> >RouterA#ping 51.51.0.1
> >
> >Type escape sequence to abort.
> >Sending 5, 100-byte ICMP Echos to 51.51.0.1,
> timeout is 2 seconds:
> >!!!!!
> >Success rate is 100 percent (5/5), round-trip
> min/avg/max = 4/4/8 ms
> >
> >
> >But the route is not in RTA's OSPF Database...
> >
> >RouterA#sh ip ospf database
> >
> > OSPF Router with ID (1.1.1.1) (Process
> ID 1)
> >
> > Router Link States (Area 0)
> >
> >Link ID ADV Router Age Seq#
> Checksum Link count
> >1.1.1.1 1.1.1.1 951 0x80000005
> 0xB7D2 2
> >100.100.100.1 100.100.100.1 231 0x80000009
> 0xEFC 2
> >
> > Net Link States (Area 0)
> >
> >Link ID ADV Router Age Seq#
> Checksum
> >172.16.1.2 100.100.100.1 957 0x80000001
> 0x31E8
> >
> > Summary Net Link States (Area 0)
> >
> >Link ID ADV Router Age Seq#
> Checksum
> >2.2.2.2 100.100.100.1 975 0x80000002
> 0xC53F
> >100.100.100.1 100.100.100.1 975 0x80000002
> 0xF9E4
> >
> > Type-5 AS External Link States
> >
> >Link ID ADV Router Age Seq#
> Checksum Tag
> >3.3.3.0 100.100.100.1 976 0x80000002
> 0xA5E 0
> >10.1.1.4 100.100.100.1 977 0x80000002
> 0xA2C1 0
> >RouterA#
> >
> >
> >Any ideas will be greatly appreciated.
> >
> >Best Regards,
> >Hunt
>
=== message truncated ===
This archive was generated by hypermail 2.1.4 : Sat Sep 07 2002 - 19:48:36 GMT-3