Installation guide

set nat
82 Chapter 2 Command Descriptions
prnumber[1-4]=gre
Used to specify the IP protocol whose packets will be forwarded for this
entry. The keyword “gre” indicates that the Generic Routing
Encapsulation (GRE) protocol will be forwarded. At this time, GRE is the
only protocol supported by the protocol-forwarding feature.
prtype[1-4]=type
Used to specify the GRE payload type to forward for this entry. A value
of 0 (zero) means all payload types will be forwarded (this is
recommended).
For example, a value of 2048 (hexadecimal 800) means only IP payload
will be forwarded.
prip[1-4]=ipaddress
Used to specify the IP address to which GRE packets will be forwarded.
poenabled[1-64]={on|off}
Used to enable or disable one of the 64 port forwarding entries.
on
Enable this port forwarding entry.
off
Disable this port forwarding entry.
poproto[1-64]={tcp|udp}
Used to specify the IP protocol associated with this port forwarding entry.
tcp
This entry specifies a TCP port to be forwarded.
udp
This entry specified a UDP port to be forwarded.
poexternal[1-64]=port
Used to specify the external (or public) port that will be forwarded for this
entry.
pointernal[1-64]=port
Used to specify the internal (or private) port to which packets will be
forwarded for this entry. This value is a port number on the host whose
IP address is specified by the “poip” option value for this entry.
poip[1-64]=ipaddress
Used to specify the IP address of the host to which packets will be
forwarded for this entry.