To route a subnet in ipv6 there are two possibilities: - add route commands for the subnet in each computer - or use neighbor proxy in the router server I prefer neighbor proxy.
So I have to activate neighbor proxy in the router: sysctl -w net.ipv6.conf.all.proxy_ndp=1
and I have to add entries for each client in the subnet like ip -6 neigh add proxy 2001:0:0:1:211:d8ff:fe97:3273 dev eth0
This works well but is lost on reboot.
For the sysctl command there is /etc/sysctl.conf for permanent configuration.
If I create a file route-eth0 in the directory /etc/sysconfig/network-scripts/ with the above ip neighbor command, the interface eth0 is immediately down.
Restart of network brings: Bringing up interface eth0: Error: Unknown connection: 5fb06bd0-0bb0-7ffb-45f1-d6edd65f3e03. [FAILED] All Interfaces are NetworkManager controlled.
Ask for help: - where can I store the command for a permanent configuration? - Shall I not further use NetworkManager?
Thank you for help in advance
Helmut