Hurricane Electric's IPv6 Tunnel Broker Forums

General IPv6 Topics => IPv6 on Linux & BSD & Mac => Topic started by: hvisage on September 16, 2015, 08:52:03 AM

Title: PMTU/MSS clamping for Linux terminated tunnels
Post by: hvisage on September 16, 2015, 08:52:03 AM
Hi there,

Also do add the following for the Linux based tunnel configurations, as I've just had an issue with a company where they block ICMP6 on their firewalls/webservers, so I couldn't access the sites from behind a Linux based tunnel:



ip6tables -A FORWARD -p tcp --tcp-flags SYN,RST SYN -j TCPMSS  --clamp-mss-to-pmtu