User's Manual

Configuring Network Address Translation

308625-14.00 Rev 00

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Configuring the Translation Entry Timeout Value

A dynamic translation entry (or mapping) has an associated “last-use” value that

increases each second that it is unused. Every time the entry is used, its last-use

value is reset to 0. If the translation timer is enabled, and the last-use value meets

or exceeds the translation entry timeout value, then the translation is deleted and

the global IP address is available for reuse.

Nortel Networks recommends accepting the default timeout value of 3600

seconds. If you set the timeout value too low, the timer will expire before NAT

software can process the next packet. You can specify a value from 0 through

2,147,483,647 (2

)

seconds.

Using the BCC

To configure the timeout period for a dynamic translation entry, navigate to the

global NAT prompt (for example,

box; ip; nat

) and enter:

timeout-max

timeout

is the duration of the timeout period in seconds.

For example, the following command configures a timeout period of 7200

seconds:

nat#

timeout-max 7200

nat#