From: hong tony (aamercado31@xxxxxxxxx)
Date: Thu May 16 2002 - 17:47:44 GMT-3
HI
You are using 0.0.0.0 to advertise the interface only.
With this in mind, the database for Router Link States
will be identical with the highest ip for each
respective router in a Multi-Access Network:
http://www.cisco.com/warp/public/104/ospfdb4.html
But with the Net Link States, the DR (1.97) which
would be R1 will advertise 152.1.1.1 for the
multi-access network.
HTH
--- Michael Kilpatrick <mjkilpat@yahoo.com> wrote:
> Can someone please help determine why networks
> directly connected to R1 are
> not being entered in the OSPF database and therefore
> not being advertised to
> R2. I thought all directly connected networks (less
> loopbacks) are
> automatically advertised via the OSPF process
> running on that router. Also,
> notice that R1 Loop1 and R2 Loop0 are in the ospf
> database... why isn't R1
> Loop0?
>
> R1_#ping 152.1.1.2
>
> !!!!!
> Success rate is 100 percent (5/5), round-trip
> min/avg/max = 1/3/4 ms
>
> R1_#sh ip int brie
> Interface IP-Address OK?
> Method Status
> Protocol
> BRI0 152.1.1.77 YES NVRAM
> up up
> BRI0:1 unassigned YES unset
> up up
> BRI0:2 unassigned YES unset
> down
> down
> Ethernet0 152.1.1.1 YES NVRAM
> up up
> Loopback0 152.1.1.65 YES NVRAM
> up up
> Loopback1 152.1.1.97 YES NVRAM
> up up
> Serial0 152.1.1.81 YES NVRAM
> up up
>
> R1_#sh run
> router ospf 110
> log-adjacency-changes
> network 152.1.1.1 0.0.0.0 area 0
>
> R1_#sh ip os data
>
> OSPF Router with ID (152.1.1.97) (Process ID
> 110)
>
>
> Router Link States (Area 0)
>
> Link ID ADV Router Age Seq#
> Checksum Link count
> 152.1.1.72 152.1.1.72 489
> 0x80000003 0xCD5C 1
> 152.1.1.97 152.1.1.97 488
> 0x80000002 0x30C9 1
>
> Net Link States (Area 0)
>
> Link ID ADV Router Age Seq#
> Checksum
> 152.1.1.1 152.1.1.97 488
> 0x80000001 0x35CD
>
> R2_#sh ip int brie
> Interface IP-Address OK? Method
> Status
> Protocol
> Ethernet0 152.1.1.2 YES NVRAM up
> up
> Loopback0 152.1.1.72 YES NVRAM up
> up
>
> R2_#sh run
> router ospf 110
> log-adjacency-changes
> network 152.1.1.2 0.0.0.0 area 0
>
> R2_#sh ip o data
>
> OSPF Router with ID (152.1.1.72) (Process ID
> 110)
>
>
> Router Link States (Area 0)
>
> Link ID ADV Router Age Seq#
> Checksum Link count
> 152.1.1.72 152.1.1.72 849
> 0x80000003 0xCD5C 1
> 152.1.1.97 152.1.1.97 849
> 0x80000002 0x30C9 1
>
> Net Link States (Area 0)
>
> Link ID ADV Router Age Seq#
> Checksum
> 152.1.1.1 152.1.1.97 850
> 0x80000001 0x35CD
>
> Thanks, Mike
>
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