Routes not beeing added / beeing deleted after some time

Hi,

im having problems creating persistent routes on my OMV.

I added a route in /etc/network/interfaces, which does not seem to get applied:

iface eth0 inet static
    address 192.168.0.10
    gateway 192.168.0.1
    netmask 255.255.255.0
    dns-nameservers 208.67.222.222
    dns-search mm.home
    pre-down ethtool -s $IFACE wol g
    up route add -net 10.8.0.0 netmask 255.255.255.0 gw 192.168.0.2
    down route del -net 10.8.0.0 netmask 255.255.255.0 gw 192.168.0.2

I also downloaded the route-plugin from omv-extras and set the route.
This also does not seem to get applied.

When im adding the route manually, via route add -net the route persists some time but seems to be getting deleted every now and then.
If it persists long enough after manual entry, the hibernate/wakeup-process removes it again.

Can anyone point me in the right direction ?
Thanks in advance!

I tried to use "ip route" in the interfaces file, which works on my other debian 9 machines.

It wont work for OMV sadly.

Im gonna try getting a shell-script together to add the route periodically, if not set.

I found some script and customized it to my route.
Its running in crontab every 5 minutes and it seems like its currenty working.

If someone ever has the same problem and is finding this thread, here is the script i found with source-link:

#!/bin/bash


# source: https://www.linuxquestions.org/questions/linux-networking-3/check-if-ip-route-exists-change-or-add-based-on-the-result-923881/


EXIST=`ip route show 10.8.0.0 | wc -l`
if [ $EXIST -eq 0 ]
then
    sudo ip route add 10.8.0.0/24 via 192.168.0.2
fi
if [ $EXIST -eq 1 ]
then
    sudo ip route chg 10.8.0.0/24 via 192.168.0.2
fi