very urgent --GRE tunneling

Unanswered Question
May 29th, 2008

very urgent -- will cisco GSR 12000 Series support GRE tunneling

I have this problem too.
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shiva_ial Thu, 05/29/2008 - 02:51


will it support by default or i should insert some tunnel line card.

shiva_ial Thu, 05/29/2008 - 20:53

i have my colleagues saying 12000 GSR doesnt support GRE Tunneling ? there are some it so.

do anyone confgiured on GRE tunnel on GSR.


ashok_boin Thu, 05/29/2008 - 21:46

Hi Shiva,

Yes, it needs a card to enable GRE tunneling.

It's there in the same document in prerequisites section.

Dedicated Line Card Required

In order for a GRE tunnel on a Cisco 12000 series Internet router to come up, a Cisco 1-port OC-48 POS line card (tunnel server card) must be installed.

Apart from this, there are no other limitations as far as I know.



shiva_ial Fri, 05/30/2008 - 00:25

hi ashok,

do you use GRE tunneling on your 12000 series router or you are sharing your knowledge expertise.


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