All container offline, no outgoing route


Today i connected to my container an one by one and would like to do some package updates. But no one can get updates, showing only (in case of trying debian 12) a v6 ip, but no new packages. The host is running on debian 12… From the “outside” via proxy i can reach the systems… Whats going on…??

Tnx in adv…

Found it… See >

You must make this setting persistent across host reboots.

One way of doing this is to add a file to the /etc/sysctl.d/ directory using the following commands:

echo “net.ipv4.conf.all.forwarding=1” > /etc/sysctl.d/99-forwarding.conf
systemctl restart systemd-sysctl

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