User manual

47
10 NAT Configuration
This chapter provides an overview of Network Address Translation
(NAT) and instructions for modifying the default configuration on
your device.
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By default, NAT is enabled, with an network address port
translation (napt) rule configured that translates any private
address on the LAN side to your ISP-assigned public IP address
on the WAN side.
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To view your NAT settings, select
Services
>
NAT
. The NAT
Configuration page displays:
*
The NAT Global Information table contains the following fields:
Field Description
TCP Idle Timeout (sec
TCP Close Wait (sec)
TCP Def Timeout (sec)
When a NAT rule is in effect on a TCP
session in the
active
state, the session
will timeout if no packets are received
for the time specified in
TCP Idle
Timeout
.
When in the TCP session’s closing
sate, the session will timeout if no
packets are received for the time
specified in
TCP Close Wait
.
When in the TCP session’s
establishing state, the session will
timeout if no packets are received for
the time specified in
TCP Def
Timeout
.
UDP Timeout (sec) Same as TCP Idle Timeout, but for
UDP packets.