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Started by comptech, November 28, 2009, 07:11:18 PM
Quote from: piojan on November 30, 2009, 06:17:15 AMI had sent emailes to google ipv6 address a few time and got replies - you could also point this out to them.
netsh interface ipv6 show interface
ipv6 ifc [if index #] mtu 1280
netsh interface ipv6 set interface [if index #] mtu=1280
Quote from: comptech on December 03, 2009, 10:37:05 PMThe problem was broken path MTU discovery between Google and me.Setting the IPv6 MTU to 1280 on all the computers on my LAN fixed the problem (sort of). Path MTU discovery is still broken but Google is back to the normal super fast speeds because their servers now know my MTU from the SYN packet MSS (Maxium Segment Size).This command worked for my Windows XP boxes, haven't tried my Win 7 laptop yet. Code Select Expandipv6 ifc [if index #] mtu 1280
ip6tables -t mangle -A FORWARD -o he-ipv6 -p tcp --tcp-flags SYN,RST SYN -j TCPMSS --set-mss 1280
Quote from: piojan on December 05, 2009, 09:52:25 AMThere used to be a few topices about a feature request so that the user would be able to select there own MTU in HE tunnelbroker config. I would vote for that (and would probably set it to 1480).