Notes on ScopePort

VPN connection in Ubuntu Intrepid fails?

by Lennart on Mar.19, 2009, under Internet

I had this problem for a longer time now: When I established a VPN connection on Ubuntu Intrepid it just failed after a few seconds or minutes. This did not happen in the earlier Ubuntu versions.

The error in the syslog was: “nm-pptp-service-9656 warn[decaps_gre:pptp_gre.c:331]: short read (-1): Message too long”

There is a very simple solution for that: Just set the MTU of your VPN connection to 1412 and the connection should stay alive! (sudo ifconfig ppp0 mtu 1412)

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