From: Omer Ansari (omer@xxxxxxxxxx)
Date: Sun Aug 25 2002 - 00:36:55 GMT-3
Hunt,
check to see on RtrA the following:
show ip ospf database router 2.2.2.2 [assuming 2.2.2.2 is the RID for
RtrB]
I suspect the 51.51.0.0/26 network would show up as a Stub Network under
the Router LSA.
something like:
Link connected to: a Stub Network
(Link ID) Network/subnet number: 51.51.0.0
(Link Data) Network Mask: 255.255.255.192
Number of TOS metrics: 0
TOS 0 Metrics: 1
On Sat, 24 Aug 2002, Peng Zheng wrote:
> 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 ===
>
>
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