feature request: support for ipv6 DNAT

[GJCav]

My host server only has a private ipv4 address and a global ipv6 address. I want to enable ipv6 forwarding so I can access my guest VM through global ipv6.

I have successfully defined a network with ipv6:

<ip family='ipv6' address='fd12:8848:a2a2:1::1' prefix='64'>
  <dhcp>
    <range start='fd12:8848:a2a2:1::4' end='fd12:8848:a2a2:1::ff'/>
  </dhcp>
</ip>

Then, the address of my guest VM is fd12:8848:a2a2:1::53 and I can connect to it with ssh from the host.

However, this script seemed to only add ipv4 DNAT in iptables. ip6tables -t nat -L did not have any DNAT rules. So, I added it by hand:

sudo ip6tables -t nat -A PREROUTING -p tcp --dport 4022 -j DNAT --to-destination '[fd12:8848:a2a2:1::53]:22'

And everything works perfectly.

But I still want to let this script manages it automatically and it would be appreciated if the developers of the script can add this feature.