To disable firewall and NAT rules on the LXD bridge, you can use the lxc network set command.
To disable the firewall on the LXD bridge, you can use the following command:
lxc network set lxdbr0 firewall.state off
This will disable the firewall on the lxdbr0 bridge.
To disable NAT on the LXD bridge, you can use the following command:
lxc network set lxdbr0 nat off
This will disable NAT on the lxdbr0 bridge.
Note that disabling the firewall and NAT on the LXD bridge can leave your containers exposed to external network traffic, and may compromise the security of your system. Make sure you understand the implications of disabling these features before doing so.