Nftables, iptables - Wireguard, wg-quick in 4.2 - Is there a problem with installing iptables aswell?

[Euwiiwueir]

@DVM

Can confirm that wg-quick works without iptables. The only thing that is not working are the custom made iptables rules obviously.

@solene

I’m not using it, but there are no reason for wg-quick to stop working.

Just for posterity:

One reason the Mullvad-generated .conf file would stop working on 4.2 is that the PostUp and PreDown fields include non-custom iptables commands if “Enable kill switch (Linux only)” is enabled during generation (https://mullvad.net/account/wireguard-config/). The user might not know what these iptables commands are for if they’re just following instructions- that they’re optional, that they’re for the killswitch, and that they can instead be implemented through other means with nftables.