From: Brian Dennis (brian@xxxxxx)
Date: Sun Aug 25 2002 - 01:23:13 GMT-3
No, the process ID's don't have to be the same. Also there isn't
anything wrong with the network statement. What's needed is to use the
"show ip ospf database router" command rather than the "show ip ospf
database" command to view the information about the 51.51.0.0/26
network.
Brian Dennis, CCIE #2210 (R&S/ISP Dial)
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Peng Zheng
Sent: Saturday, August 24, 2002 7:27 PM
To: David Ham; ciscoforme3@yahoo.com.au; ccielab@groupstudy.com
Subject: Re: Route missing in OSPF Topological Database
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
>
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