Re: VPN -> GRE tunneling

[Jan Carlson]

On Tue, Jul 31, 2001 at 12:52:43AM +0200, LuisMi wrote:
> What ports are used if I run a GRE tunel?

GRE is not a tcp port.  
GRE is a protocol, just like TCP, UDP and ICMP.
To let all GRE pass your ipchains firewall:

  ipchains -A input -p 47 -j ACCEPT

-- 
Jan Carlson                                 janc at kubwa dot com



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