Support specifying "open" forward mode #900
Merged
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"The new forward mode 'open' is just like mode='route', except that no
firewall rules are added to assure that any traffic does or doesn't
pass. It is assumed that either they aren't necessary, or they will be
setup outside the scope of libvirt."[1]
[1] libvirt/libvirt@25e8112
This is a useful mode if you want libvirt to manage the ip address and DHCP/DNS server, but want to manage the firewall rules yourself (ex: if the firewall rules are too restrictive).