On Wed, 19 Jan 2005, Joachim Pahnke wrote: > When the connection is started I get following error message: > > sendto on eth0 to xxx.xxx.xxx.xxx:4500 failed in EVENT_RETRANSMIT. Errno 1: > Operation not permitted this is either a firewall issue, or perhaps an SElinux or other 'security' issue. Are you allowing udp port 4500? This is needed for NAT-T Paul