Re: Is it possible to share a physical interface and a routing

Dear Andrew,

Thank you very much, your advise and the CCO document helped me and it's
working fine now.

I just put vrf static route with interface option, very simple solution.

Best regards,

Achi :)

> Dear Andrew,
>
> Thank you for your comments and providing your knowledge!
>
> Wow, "Route Leaking"... I didn't know that, sounds interesting.
>
> Anyway I try it today and update soon.
>
> Best regards,
>
> Achi :)
>
>> I did something similar in my lab when trying to learn VRF Lite. I do
>> not have the set up running anymore ... ;-(
>>
>> Basically you have VRFs off of a global router and you need to share
>> some access to and from the VRF / global tables. This can be done via
>> a manual process.
>> In my lab, I used global static routes to advertise these VRF
>> resources into the global table. I simply redistributed these static
>> routes into my global OSPF and now every other global router knew of
>> these destinations.
>>
>> I then used static routes within the VRF's routing table to advertise
>> reachability to global resources. Again, I redistributed the static
>> routes into my VRF routing process.
>> Lastly when return traffic would come from global locations and hit my
>> global router, I used static routes to the inside VRF interface.
>> Sounded weird to me too! But it works fine on the router and return
>> traffic was routed just fine.
>> Everything worked and it was a bugger to get working ... mostly
>> because I had to think through everything and I was learning the
>> entire time.
>> (watch the ugly word wrap):
>> http://www.cisco.com/en/US/tech/tk436/tk832/technologies_configuration_example09186a0080231a3e.shtml
>>
>>
>> Good luck and hit us back with any questions and or comments,
>>
>> Andrew Lissitz
>>
>>
>> .
>> 2010/2/1 <a-naka_at_mtf.biglobe.ne.jp <mailto:a-naka_at_mtf.biglobe.ne.jp>>
>>
>> Hi guys,
>>
>> Is it possible to share a physical interface and a routing by some
>> VRFs?
>>
>> I need to connect one local hub CE router R1 and some remote spoke
>> CE routers R2, R3, ..., Rx via GRE tunnel.
>> I also need to isolate them by using VRF on R1, because remote sites
>> address space can be overlapped.
>>
>> R1 fa0/0 -------+------- R2
>> +------- R3
>> +------- .
>> +------- .
>> +------- .
>> +------- Rx
>>
>> To establish GRE tunnel for each remote spoke CE router, I want to
>> share the physical interface fa0/0 and default route via the
>> interface by those VRFs.
>> I don't want to configure several loopback interfaces for every each
>> site, because I have only 1 global ip address which is reachable
>> from each remote site.
>>
>> I would appreciate it if anybody gave me an idea.
>>
>> Achi :)
>>
>>
>> Blogs and organic groups at http://www.ccie.net
>>
>>
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>>
>>
>>
>>
>>
>>
>>
>>
>> --
>> Andrew Lee Lissitz
>> all.from.nj_at_gmail.com <mailto:all.from.nj_at_gmail.com>
>
>
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>
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Received on Wed Feb 03 2010 - 22:19:40 ART