From: Mark Mirrotto (mmirrott@xxxxxxxxxxx)
Date: Wed Apr 28 1999 - 19:31:02 GMT-3
Joe wins the prize for coming up with the solution. Having R4 advertise the
subnet in question fixed the problem.
Thanks to all else who helped.
Mark
-----Original Message-----
From: Joe Soricelli <jsoricelli@ccci.com>
To: ccielab@groupstudy.com <ccielab@groupstudy.com>
Date: Wednesday, April 28, 1999 4:20 PM
Subject: Re: BGP and OSPF redistribution
>Mark and all,
>
>Just got a chance to try this in my lab. First, did a redistribute
>connected ito OSPF on router 1. This worked as expected and routers 2 and
3
>saw the EBGP subnet.
>
>The attached configs show the setup NOT using a redistribute connected. It
>has the 172.17.0.0/16 route summary being advertised from router 4. This
>gets to routers 2 and 3 and they are able to ping the EBGP subnet
>interfaces.
>
>-joe
>
>P.S. I used Ethernet between 1 & 4 and 2 & 3, but the theory/layout is
>still the same.
>
>-----Original Message-----
>From: Mark Mirrotto <mmirrott@stratos.net>
>To: 'Joe Soricelli' <jsoricelli@fridge.ccci.com>; ccielab@groupstudy.com
><ccielab@groupstudy.com>
>Date: Wednesday, April 28, 1999 2:02 PM
>Subject: RE: BGP and OSPF redistribution
>
>
>>The area 0 network is 172.17.59.16 / 28 with the 3 interfaces in question
>>being .17 .18 & .19.
>>The E0 network on R4 is 172.17.59.160 / 30 Ethernet 0 on R4 is set to
>>172.17.59.161
>>The token ring network that R2 & R3 share is 172.17.59.128 / 28 with the 2
>>interfaces set to .129 & .130 and is in OSPF area 1
>>I have the ip classless statements around the house, I have 'no summary'
>>statements in the BGP processes, and I am using the appropriate masks in
>>the BGP network statements.
>>My OSPF redistribute command includes the subnets parameter.
>>R2 & R3 can see the 160 network from R4, and R4 can see the 128 and 16
>>network. R2 & R3 cannot see the .0 network. Since I am subnetting down a
>>class B, I don't need to worry about the IP subnet zero, but the commands
>>are there anyway.
>>I did try a few things last night, including redistributing connected on
R1
>>and the route to the 0 subnet still didn't show up on R2 & R3.
>>I think that's everything.
>>Thanks!
>>
>>
>>-----Original Message-----
>>From: Joe Soricelli [SMTP:jsoricelli@ccci.com]
>>Sent: Wednesday, April 28, 1999 12:34 PM
>>To: ccielab@groupstudy.com
>>Subject: Re: BGP and OSPF redistribution
>>
>>Can you supply some IP addressing information on the links? Specifically,
>>the E0 on router 4, the EBGP link, and the 2 area 0 links on router 1?
>>-----Original Message-----
>>From: Mark Mirrotto <mmirrott@stratos.net>
>>To: 'Joe Soricelli' <jsoricelli@fridge.ccci.com>; ccielab@groupstudy.com
>><ccielab@groupstudy.com>
>>Date: Wednesday, April 28, 1999 1:29 PM
>>Subject: RE: BGP and OSPF redistribution
>>
>>
>>>Router 1 has the network statement. Sorry, I should have given more
>>details.
>>>
>>>-----Original Message-----
>>>From: Joe Soricelli [SMTP:jsoricelli@ccci.com]
>>>Sent: Wednesday, April 28, 1999 8:56 AM
>>>To: ccielab@groupstudy.com
>>>Subject: Re: BGP and OSPF redistribution
>>>
>>>Does router 1 or 4 have the network between them listed as a network
>>>statement under BGP?
>>>
>>>-joe
>>>-----Original Message-----
>>>From: Mark Mirrotto <mmirrott@stratos.net>
>>>To: 'ccielab@groupstudy.com' <ccielab@groupstudy.com>
>>>Date: Wednesday, April 28, 1999 8:42 AM
>>>Subject: BGP and OSPF redistribution
>>>
>>>
>>>>I am having problems in my test lab getting BGP routes to redistribute
>>into
>>>>my routing tables. Here is the scenario:
>>>>
>>>>R1 is running OSPF over a multipoint frame relay connection to R2 and
R3.
>>>>This is OSPF area 0
>>>>R2 and R3 are also connected via their token ring interfaces in OSPF
area
>>>>1.
>>>>R1 also has an EBGP connection to R4 over a point-to-point frame relay
>>>>connection. R4 is advertising the network connected to its ethernet.
>>>>R1 is mutually redistributing OSPF and BGP. The rest of the OSPF routers
>>>>see the BGP route from R4, and R4 sees the rest of the OSPF network. The
>>>>problem is R1 is not propagating the network connecting R1 and R4 (the
>>EBGP
>>>>network) even though there is a network statement under the BGP routing
>>>>process.
>>>>If I extend the OSPF area 0 to include the network connecting to R4,
>>>>everything works fine. I guess the bottom line is I need to get this
>>route
>>>>into the routing tables somehow without using static routes, and without
>>>>using OSPF. Any ideas?
>>>>Thanks
>>>>
>>>
>>>
>>
>>
>
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