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[Openvpn-users] why is SIGUSR1 required with ISDN dialup?



Received

I wonder why I need to issue a kill -SIGUSR1 <openvpn-pid> to openvpn when running a tunnel over an isdn dialup line after the isdn line is down for a while. The dialup line uses raw-ip. The first connection works without SIGUSR1. If I reconnect soon after the isdn line goes down the vpn tunnel works. After a few minutes (I think 15 or more) a ping opens the isdn line but all packets to the other vpn endpoint are simply dropped. Below you will find the configuration file from one endpoint.

remote 192.168.199.11
rport 19910
local 192.168.199.10
lport 19911
secret /etc/openvpn/test.secret
comp-lzo
resolv-retry 300
persist-tun
writepid /var/run/openvpn-test.pid
dev tun
ifconfig 192.168.199.20 192.168.199.21
route 192.168.199.0 255.255.255.248

---
Claas Hilbrecht
http://www.jucs-kramkiste.de


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