GRE Tunneling

[whynot108]

Hi,

I am learning pix products. I saw pix firewalls support IPSec. I am wondering whether I can establish a GRE tunnel between two pix firewalls. If yes, is there any config doc available for it?

Thanks!

[gfullage]

PIX's wont do GRE tunnels, only native IPSec. There's a sample config for this here:

http://www.cisco.com/en/US/products/hw/vpndevc/ps2030/products_configuration_example09186a0080094761.shtml

[nleachman]

While the pix won't terminate GRE tunnels you can pass GRE tunnels through a PIX and terminate them on a router:

http://www.cisco.com/en/US/tech/tk583/tk372/technologies_configuration_example09186a00800a43f6.shtml