Re: OSPF redistribution into eBGP

From: Carlos G Mendioroz <tron_at_huapi.net.ar>
Date: Tue, 25 Jan 2011 08:40:36 -0300

Try with a network 0.0.0.0 inside bgp @R2.
That should make BGP happy.

Dynamips it's ok, it is a hardware emulator so the code behaves fine
as long as you don't get into timing issues or interface singularities :)

-Carlos

Usha Rani @ 25/01/2011 07:32 -0300 dixit:
> R1(config-router)#do show version | i IOS
> Cisco IOS Software, 3600 Software (C3640-IK9O3S-M), Version 12.4(23),
> RELEASE SOFTWARE (fc1)
> R1(config-router)#
>
> i'm trying in Dynamips..
>
> On Tue, Jan 25, 2011 at 3:59 PM, Carlos G Mendioroz <tron_at_huapi.ba.ar>wrote:
>
>> What version of IOS are you running @ R1 ?
>> It used to be the case that the default route was filtered by default.
>> You would need a network statement (BGP) to enable it, or a neighbor
>> default-originate to clamp it.
>> Default route can be tricky at times. Most protocols have special
>> treatment one way or the other, for a reason.
>> -Carlos
>>
>> Usha Rani @ 25/01/2011 04:49 -0300 dixit:
>>
>>> Hi,
>>> I have a question on OSPF redistribution into BGP.
>>>
>>>
>>> R2----ospf----R1---BGP-----R3
>>>
>>>
>>>
>>>
>>>
>>> 1. Configured OSPF between R1 and R2
>>>
>>> 2. Advertised R2 s loopback in OSPF also R2 is advertising
>>> default-route always.
>>>
>>> 3. Configured eBGP between R1 and R3
>>>
>>> 4. In R1, Redistributed ospf routes into BGP (redistribute ospf 1
>>> match internal external 1 external 2)
>>>
>>> 5. In R3, its observed that all the OSPF routes have been
>>> redistributed into BGP, except the default-route.
>>>
>>>
>>>
>>> P.S: If I configure EIGRP between R1 and R3 and redistribute OSPF into
>>> EIGRP, even the default-route is getting redistributed into EIGRP.
>>>
>>>
>>>
>>> *Is this the expected behavior?*
>>>
>>>
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>> --
>> Carlos G Mendioroz <tron_at_huapi.ba.ar> LW7 EQI Argentina
>
>
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-- 
Carlos G Mendioroz  <tron_at_huapi.ba.ar>  LW7 EQI  Argentina
Blogs and organic groups at http://www.ccie.net
Received on Tue Jan 25 2011 - 08:40:36 ART

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