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Community Member

PIX and GRE Tunnels

Is it possible to terminate GRE tunnels on to a PIX firewall?

It needs to be GRE tunnel and not any other type of VPN tunnel.

Thanks

3 REPLIES
Cisco Employee

Re: PIX and GRE Tunnels

PIX firewall does not support termination of GRE tunnels. Can act as GRE passthrough though.

-Kanishka

Community Member

Re: PIX and GRE Tunnels

Sadly it's the data inside the GRE tunnels that we need to inspect. This could be most things but will definitely include multicast traffic (hence the need for GRE to get through the initial cloud).

Are Pix firewalls capable of examining the types of data inside a GRE packet as they would a normal packet?

Mel

Cisco Employee

Re: PIX and GRE Tunnels

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