RT-3100 5-Port Single-WAN Gigabit Router User Guide
Field Function Options
Enable
Enable or Disable the Port Forwarding rule.
Mapping
Type
Specify the mapping type as Port
Forwardor1:1NAT.
l
Port Forwardtakes traffic destined for
the WAN interface IP (external IP)and
forwards specified external ports to an
internal port on an internal IP.
l
1:1NATdoes the same but allows a
different External IP to be defined and
adds an SNAT rule for traffic outbound
from the Internal IP so traffic exiting the
WAN will use the specified External IP
rather than the WAN interface IP.
l Port Forward
l 1:1NAT
Name
Specify a name for the port forward rule. l Type any
name (32
character
limit)
External
Interface
Specify the external interface watching for
incoming traffic.
l ANY
l WAN1
l WAN2 (if
enabled)
Protocol
Select the traffic protocol to apply to the rule l TCP+UDP
l TCP
l UDP
External
IP
(Only for 1:1NAT) Specify which WAN IP to
watch for incoming traffic.
l Any Valid IP
Address
External
Port
Specify which external port to watch for
incoming traffic.
l Any available
port
Internal
Port
Specify which internal port to NAT the traffic to
on the local network.
l Any available
port (that is
not already
used by the
router)
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