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Author Topic: PMTU/MSS clamping for Linux terminated tunnels  (Read 1361 times)

hvisage

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PMTU/MSS clamping for Linux terminated tunnels
« 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:

Code: [Select]

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

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