Can't get vpn to work

[disp6252]

@humming

Why does mullvad recommend turning off icmp? Do their nomal clients also block it?

Is it a bad idea for a firewall to block ICMP?

@humming

do I have to modify something in the iptable rules?

Did you change virtualif to your VPN qube vif IP?
Also do you have Qubes OS 4.1 or Qubes OS 4.2?
If it’s Qubes 4.2 then you’ll need to use nftables instead of iptables:

[4.2] VPN configuration: iptables: No chain/target/match by that name in Qubes 4.2.rc1

Hello, I upgraded to 4.2 rc1 and I can’t get my openvpn DNS script working in the new app qubes (tried fedaora 37 and 38). Openvpn works fine, but the script that uses iptables to take over DNS requests fails. For example: # sudo iptables -t nat -A PR-QBS -i vif+ -p udp --dport 53 -j DNAT --to 10.3.0.1 iptables: No chain/target/match by that name. The VPN is working, just no automatic DNS Everything works fine on Qubes 4.2 with a fedora 36 qube restored from Qubes 4.1 backups). …