Re: distance command under ospf

Awesome, I will lab it up tomorrow.

On Sun, May 17, 2009 at 9:04 PM, Joe Astorino <jastorino_at_ipexpert.com>wrote:

> That will work, sure. Treat it like you would any mask but I would do
> 0.0.0.0 out of preference
>
> Regards,
>
> Joe Astorino
> CCIE #24347 (R&S)
> Sr. Support Engineer  IPexpert, Inc.
> URL: http://www.IPexpert.com <http://www.ipexpert.com/>
>
> ------------------------------
> *From*: Chris Breece
> *Date*: Sun, 17 May 2009 21:03:13 -0400
> *To*: <jastorino_at_ipexpert.com>
> *Subject*: Re: distance command under ospf
>
> Hey Joe,
>
> Sure didn't. I thought about doing that, but the context sesitive help
> implied "source of the route" and asked for a wildcard mask. I can't
> remember exactly what it said, I'm not in front of the console at the
> moment. But if the router ID is required.... this is probably what was
> messing me up!
>
> If it needs a router ID what do I put for the wildcard mask? 0.0.0.0 ?
>
> Chris
>
>
>
> On Sun, May 17, 2009 at 8:54 PM, Joe Astorino
<jastorino_at_ipexpert.com>wrote:
>
>> Hey Chris, remember that with OSPF and distance you have to specify the
>> RID of the advertising router, not necessarily the ip address. Did you do
>> that?
>>
>>
>> Regards,
>>
>> Joe Astorino
>> CCIE #24347 (R&S)
>> Sr. Support Engineer  IPexpert, Inc.
>> URL: http://www.IPexpert.com <http://www.ipexpert.com/>
>>
>>
>> -----Original Message-----
>> From: Chris Breece <cbreece1_at_gmail.com>
>>
>> Date: Sun, 17 May 2009 18:56:25
>> To: Cisco certification<ccielab_at_groupstudy.com>
>> Subject: distance command under ospf
>>
>>
>> Guys,
>>
>> I was working on a scenario today and got some results I wasn't expecting.
>> I
>> didn't save my exact configs, but I put together the basics of how it was
>> setup below. If there are any typos, sorry, I did it in notepad.
>>
>>
>> R1
>> router ospf 1
>> network 10.10.10.1 0.0.0.0 area 0
>> redis connected route-map redis-connected metric 10 metric-type 1 subnets
>> !
>> interface fa0/0
>> ip address 10.10.10.1 255.255.255.0
>> !
>> interface fa0/1
>> ip address 192.168.0.1 255.255.255.0
>> !
>> route-map redis-connected permit 10
>> match interface fa0/1
>>
>>
>> R2
>> router ospf 1
>> network 10.10.10.2 0.0.0.0 area 0
>> distance 180 10.10.10.0 0.0.0.255 external-routes
>> !
>> int fa0/0
>> ip address 10.10.10.2 255.255.255.0
>> !
>> ip access-list standard external-routes
>> permit 192.168.0.0 0.0.0.255
>>
>>
>> The scenario was that I wanted any routes learned by R2 from R1 that were
>> "external" to have an AD of 180. The two routers are connected via their
>> Fa0/0 interfaces. R1's Fa0/1 has the subnet that will be brought into OSPF
>> as an external... and I was attempting to match this route via the
>> access-list attached to the distance command under the OSPF process on R2.
>>
>> After I set this up, I looked at R2's routing table and R2 had learned it
>> via OSPF with an AD of 110. If I changed the 192.168.0.0/24 subnet to be
>> apart of Area 0, rather than an external it changed the AD to 180.
>>
>> Also, when I used "distance ospf external 180" this worked fine. However,
>> it
>> messed up some other requirements in the scenario, so I couldn't use it.
>>
>>
>> Is this behavior normal? Does the "distance" command not work with
>> externals? Or is it that I was probably just doing something wrong
>> elsewhere?
>>
>> Chris
>>
>>
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>>
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Received on Sun May 17 2009 - 21:06:48 ART