From: Hao Zhong (hao_zhong@yahoo.com)
Date: Fri Apr 16 2004 - 13:51:09 GMT-3
Thanks for the reply, Alex, but if you look more
carefully, you'll see both the ASBR's router ID and
the advertising ABR's router ID are 192.168.100.33. So
the question still remains.
--- "Alexander Arsenyev (GU/ETL)"
<alexander.arsenyev@ericsson.com> wrote:
> This is normal OSPF behaviour - Your router is an
> ABR and as such originates Type-4 LSA for
> other routers in attached areas, see RFC2328 section
> 12.4.3. What You see does not mean that router
> "Oak" with router-id 192.168.100.33 is an ASBR, it's
> just an ABR generating Type-4 LSAs.
> HTH,
> Cheers
> Alex
>
> -----Original Message-----
> From: nobody@groupstudy.com
> [mailto:nobody@groupstudy.com]On Behalf Of
> Hao Zhong
> Sent: 15 April 2004 06:44
> To: ccielab@groupstudy.com
> Subject: OSPF ASBR Summary LSA problem
>
>
> Hi all, I have a router configured as below. It is a
> ABR attached to area 100 and area 0. The weird thing
> is it keeps showing itself as an ASBR to area 100. I
> simply can't figure out what is going on. Thanks!
>
> --------------- BEGIN ---------------
>
> version 12.2
> !
> hostname Oak
> !
> ip subnet-zero
> !
> interface Ethernet0/0
> ip address 192.168.100.2 255.255.255.240
> full-duplex
> !
> interface Serial0/0
> no ip address
> shutdown
> no fair-queue
> !
> interface Serial0/1
> no ip address
> encapsulation frame-relay
> clockrate 2000000
> !
> interface Serial0/1.1 point-to-point
> ip address 192.168.100.25 255.255.255.252
> frame-relay interface-dlci 401
> !
> interface Serial0/1.2 point-to-point
> ip address 192.168.100.33 255.255.255.252
> ip ospf network point-to-multipoint
> frame-relay interface-dlci 402
> !
> router ospf 10
> log-adjacency-changes
> network 192.168.100.2 0.0.0.0 area 0
> network 192.168.100.25 0.0.0.0 area 100
> network 192.168.100.33 0.0.0.0 area 0
> !
> ip classless
> !
> line con 0
> line aux 0
> line vty 0 4
> !
> end
>
> --------------- END ---------------
>
> Oak#sh ip ospf database
>
> OSPF Router with ID (192.168.100.33)
> (Process ID 10)
>
> Router Link States (Area 0)
>
> Link ID ADV Router Age Seq#
>
> Checksum Link count
> 192.168.100.29 192.168.100.29 1219
> 0x8000000B
> 0x007AFC 3
> 192.168.100.30 192.168.100.30 1225
> 0x80000007
> 0x0080A8 2
> 192.168.100.33 192.168.100.33 1220
> 0x8000000B
> 0x005332 3
> 192.168.100.34 192.168.100.34 1235
> 0x80000007
> 0x00D07F 2
>
> Net Link States (Area 0)
>
> Link ID ADV Router Age Seq#
>
> Checksum
> 192.168.100.2 192.168.100.33 1224
> 0x80000001
> 0x00DBD4
>
> Summary Net Link States (Area 0)
>
> Link ID ADV Router Age Seq#
>
> Checksum
> 192.168.100.20 192.168.100.29 1220
> 0x80000001
> 0x00152E
> 192.168.100.20 192.168.100.33 1215
> 0x80000001
> 0x00DE30
> 192.168.100.24 192.168.100.29 1210
> 0x80000001
> 0x00CE40
> 192.168.100.24 192.168.100.33 1229
> 0x80000003
> 0x00D068
>
> Router Link States (Area 100)
>
> Link ID ADV Router Age Seq#
>
> Checksum Link count
> 192.168.100.26 192.168.100.26 1218
> 0x80000008
> 0x008483 4
> 192.168.100.29 192.168.100.29 1220
> 0x80000005
> 0x004AF5 2
> 192.168.100.33 192.168.100.33 1224
> 0x80000005
> 0x009A95 2
>
> Summary Net Link States (Area 100)
>
> Link ID ADV Router Age Seq#
>
> Checksum
> 192.168.100.0 192.168.100.29 1220
> 0x8000000C
> 0x00A7DF
> 192.168.100.0 192.168.100.33 1221
> 0x80000003
> 0x00FB87
> 192.168.100.28 192.168.100.29 1221
> 0x80000002
> 0x00C277
> 192.168.100.28 192.168.100.33 1216
> 0x80000001
> 0x00111C
> 192.168.100.33 192.168.100.29 1222
> 0x80000001
> 0x00CC95
> 192.168.100.33 192.168.100.33 1236
> 0x80000001
> 0x00AAB4
> 192.168.100.34 192.168.100.29 1222
> 0x80000001
> 0x00A48C
> 192.168.100.34 192.168.100.33 1226
> 0x80000001
> 0x0082AB
>
> Summary ASB Link States (Area 100)
>
> Link ID ADV Router Age Seq#
>
> Checksum
> 192.168.100.33 192.168.100.33 1233
> 0x80000003
> 0x007A02
> Oak#
> Oak#sh ip ospf neighbor
>
> Neighbor ID Pri State Dead Time
> Address Interface
> 192.168.100.34 1 FULL/ - 00:01:51
> 192.168.100.34 Serial0/1.2
> 192.168.100.29 1 FULL/BDR 00:00:37
> 192.168.100.1 Ethernet0/0
> 192.168.100.26 1 FULL/ - 00:00:33
> 192.168.100.26 Serial0/1.1
> Oak#
>
>
>
>
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This archive was generated by hypermail 2.1.4 : Mon May 03 2004 - 19:48:48 GMT-3