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Hurricane Electric's IPv6 Tunnel Broker Forums

General IPv6 Topics => IPv6 on Linux & BSD & Mac => Topic started by: jppo on June 11, 2011, 12:33:24 PM

Title: What ports must be open in a firewall
Post by: jppo on June 11, 2011, 12:33:24 PM
Hello,

I wonder what TCP ports are to be left open in a firewall to let the tunnel work.

Regards

JPPO
Title: Re: What ports must be open in a firewall
Post by: cholzhauer on June 11, 2011, 01:27:39 PM
dont need to allow any ports..just protocol 41 and imho, ping
Title: Re: What ports must be open in a firewall
Post by: snarked on June 11, 2011, 03:23:31 PM
IPv4:  Protocol 41 from/to the tunnel server's IPv4 address.
IPv6:  ICMP6 echo-request and reply from/to the tunnel server's IPv6 address ending ::1 ("Server IPv6 Address Tunnel Endpoint") and your host's IPv6 address ending ::2 ("Client IPv6 Address Tunnel Endpoint").

To do anything useful, obviously your IPv6 routed address(es) must also be opened somehow.  That's up to you.
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