From: John (jgarrison1@austin.rr.com)
Date: Wed Jul 23 2008 - 16:07:51 ART
Thats what I did, but the SG has included interfaces that are connected to
the backbone. That was no asked for explictly nor implicitly through a
"make sure you have full connectivity" type of statement .
I have no confusion about how to get loopback to advertise a 24 bit mask
without an ip ospf network statment on the interface.
----- Original Message -----
From: "Otto Rupp" <routingtag@googlemail.com>
To: "John" <jgarrison1@austin.rr.com>
Cc: <ccielab@groupstudy.com>
Sent: Wednesday, July 23, 2008 12:35 PM
Subject: Re: Backbone confusion
> Hi John,
> did you try redistributing the lo0 into ospf using a route-map?
>
> route-map to-ospf
> match interface loop0
>
> router ospf 1
> redistribute connected route-map to-ospf subnets
>
>
>
> John schrieb:
>> Let me add that the lab I'm doing right now. Asks for you to advertise
>> the lo0 interface for all devices in the ospf domain. I should not use
>> ip ospf network command and they should appear with their "proper"
>> netmask. Thats all that was asked for yet the SG has the BB subnets
>> being allowed in the through the route-map. I find this annoying as
>> hell, because I don't know if my logic is faulty or I missed something
>> when I read through the lab. I see nothing in the BGP section that
>> suggests that i need to do this, because I can next-hop-self at the
>> borders
>> ----- Original Message ----- From: "John" <jgarrison1@austin.rr.com>
>> To: <ccielab@groupstudy.com>
>> Sent: Wednesday, July 23, 2008 8:31 AM
>> Subject: Backbone confusion
>>
>>
>>> I'm getting a little confused on how to deal with backbone subnets. In
>>> the
>>> labs I'm doing sometimes they ask for you to advertise them via an IGP.
>>> Sometimes they don't ask explicit or implicit to advertise the backbone
>>> subnets. They just do it in a way that seems arbitrary to me. I'm told
>>> to
>>> follow instructions and to not do extra configuration, but from where I
>>> sit
>>> sometimes there no way to make the lab work without extra configuration
>>> thats
>>> not asked for. So my question is do I advertise the the backbone
>>> subnets
>>> always or is this vendors labs playing a little fast and lose with the
>>> rules,
>>> and I should not worry about it, because I will be told explicitley
>>> which
>>> networks to advertise. Yes I realize there could be implicit
>>> directions,but
>>> the cases I'm talking about there is no explicit or implicit direction
>>> to
>>> advertise the backbone subnets, but I look in the SG and there it is in
>>> some
>>> form or another. For all I know there is some implicit direction in the
>>> lab
>>> that says to not advertise the BB subnets to the rest of the network.
>>>
>>> Any input would be appreciated
>>>
>>>
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>>
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>
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