Hi,
I'me having some strange issues with openvpn when a gre tunnel is
active. When reverting to gif tunneling the problem does not occur.
What happens. I setup a openvpn tunnel to a acces server with a gre tunnel
active. Setup of the openvpn tunnel succeeds ant have connection. After
a view seconds, between 10 and 60, the openvpn session gets a SIGUSR1 on
the client site.
Over the gre tunnel is a link to a radius server for authentication of
the openvpn clients. When i use a gif tunnel between the server and the
radius server, this does not happen.
To make it more strange if i have a gre tunnel to some other host active
and have the gif tunnel between the access and radius server, the
connection (openvpn) is rock stable.
gre1: flags=9051<UP,POINTOPOINT,RUNNING,LINK0,MULTICAST> metric 0 mtu 1476
tunnel inet $ip_accessserver --> $ip_radiusserver
inet 10.A.A.240 --> 10.A.A.241 netmask 0xffffffff
gif1: flags=8051<UP,POINTOPOINT,RUNNING,MULTICAST> metric 0 mtu 1280
tunnel inet $ip_accessserver --> $ip_radiusserver
inet 10.A.A.102 --> 10.A.A.101 netmask 0xffffffff
tap0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
ether 00:bd:fa:5f:c6:00
inet 172.16.0.1 netmask 0xffffff00 broadcast 172.16.0.255
Opened by PID 28781
I'me running FreeBSD 7.0-Stable of end jul. on a amd64.
Any clues how i could attack this problem or find a solution?
Regards
Robert
--
Microsoft: Where do you want to go today?
Linux: Where do you want to go tomorrow?
FreeBSD: Are you guys coming or what?
OpenBSD: Hey guys you left some holes out there!
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