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head/sbin/ipfw/ipfw.8
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.It Cm log | .It Cm log | ||||
Enable logging on this nat instance. | Enable logging on this nat instance. | ||||
.It Cm deny_in | .It Cm deny_in | ||||
Deny any incoming connection from outside world. | Deny any incoming connection from outside world. | ||||
.It Cm same_ports | .It Cm same_ports | ||||
Try to leave the alias port numbers unchanged from | Try to leave the alias port numbers unchanged from | ||||
the actual local port numbers. | the actual local port numbers. | ||||
.It Cm unreg_only | .It Cm unreg_only | ||||
Traffic on the local network not originating from an | Traffic on the local network not originating from an RFC 1918 | ||||
unregistered address spaces will be ignored. | unregistered address spaces will be ignored. | ||||
.It Cm unreg_cgn | |||||
Like unreg_only, but includes the RFC 6598 (Carrier Grade NAT) | |||||
address tange. | |||||
.It Cm reset | .It Cm reset | ||||
Reset table of the packet aliasing engine on address change. | Reset table of the packet aliasing engine on address change. | ||||
.It Cm reverse | .It Cm reverse | ||||
Reverse the way libalias handles aliasing. | Reverse the way libalias handles aliasing. | ||||
.It Cm proxy_only | .It Cm proxy_only | ||||
Obey transparent proxy rules only, packet aliasing is not performed. | Obey transparent proxy rules only, packet aliasing is not performed. | ||||
.It Cm skip_global | .It Cm skip_global | ||||
Skip instance in case of global state lookup (see below). | Skip instance in case of global state lookup (see below). | ||||
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