After a lost connection between client and server, client get a wrong ip

thewiw_rw

Hello,

We have multiple machines (all debian/ubuntu) interconnected via OpenVPN, and almost each machine (well, each client is more accurate) as a static ip within the VPN

For example, machine 1 should always have address 10.0.0.5, machine 2 should always have address 10.0.0.6, ...

Those addresses are provided by VPN server

What is weird and we don't understand is that sometimes, usually after a connection timeout in client log, VPN server do not provide the static address to next connection of the client, meaning at some points machine 1 may have 10.0.1.19 (instead of expected 10.0.0.5)

Restart OpenVPN on client side always fixes the problem : "service openvpn restart" on machine 1 allows it to get address 10.0.0.5 again.

Does somebody have an explanation and a fix for this behavior ?

Thanks in advance