Network configuration, 2 routers, Management-network w/o DNS


Active Member
Mar 4, 2014
I have configured the network for usage of 2 routers.

There's a management network to router A and another network to router B (FritzBox).
The management network does not provide DNS, and therefore internet access via router A is not working.

Currently I have configured default gateway, and I cannot update Proxmox server:
Name resoluton fails.

This is output of ip route:
$ ip route
default via dev vlan1 proto kernel onlink dev vlan1 proto kernel scope link src dev vmbr0 proto kernel scope link src

Can you please advise for configuration that any internet traffic is routet via (FritzBox)?



Renowned Member
Jul 5, 2020
If it's only a DNS problem then why not just add router B as DNS?
If router B completely disables internet access then you can route your traffic through vmbr0. Just remove the gateway address from device vlan1 and add the Fritzbox address as gateway to vmbr0.
If this is all with concern to security, you might want to consider a local apt cache or a reverse proxy in your management network, though.
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