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Configuring NAT
54 EN/LZT 108 6492 R2 - October 2003
default), the NAT Rule Configuration page, and the NAT
Translations page.
Enable/Disable radio buttons, which allow you to turn on or off the
NAT feature.
The NAT Global Information table, which displays the following
settings that apply to all NAT rule translations:
Field Description
TCP Idle
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 specified time.
TCP Close Wait(sec):
When in the TCP session’s closing state, the
session will timeout if no packets are received for
the specified time.
TCP Def
Timeout(sec):
When in the TCP Session’s establishing state,
the session will timeout if no packets are
received for the specified time.
UDP Timeout(sec):
Same as TCP Idle Timeout, but for UDP packets.
ICMP Timeout(sec):
Same as TCP Idle Timeout, but for ICMP
packets.
GRE Timeout(sec):
Same as TCP Idle Timeout, but for GRE packets.
Default NAT
Age(sec):
For all other NAT translation sessions, the
number of seconds after which a translation
session will no longer be valid.
NAPT Port Start/End:
When a NAPT rule is defined, the source ports
will be translated to sequential numbers in this
range.
If you change any values, click the Submit button and then commit your
changes to permanent system memory.
You can click the Global Stats button to view accumulated data on how
many NAT rules have been invoked and how much data has been
translated. A page similar to the one below is displayed: