[c-nsp] GRE Tunnelling on the ME3600/ME3800 Switches ?

Saku Ytti saku at ytti.fi
Wed Dec 28 05:56:14 EST 2011

On (2011-12-28 18:30 +1100), Reuben Farrelly wrote:


> Is GRE tunnelling supported on this platform?

No clue, but probably possible in magic fpga.

> We've a need to run GRE tunnels for a URL filtering solution at our
> Head Office from outside the firewall, and policy routing + GRE is
> the only way this can be set up with the upstream vendor.
> [Pretty sure policy routing is not supported on this platform yet
> also but confirmation of this would be good as well].

Can't you do PBR+VRF? Match say destination port 80, and set vrf to say
'to-proxy', which only has default route towards proxy box. Then add static
route for the customer network like so

ip vrf from-proxy customer_net cust_int cust_nexthop

In the interface facing web-proxy import from-proxy RT and export default
route as to-proxy RT

web-proxy needs no magic support.

More information about the cisco-nsp mailing list