D-Link DI-1750 Reference Manual page 178

ip nat translation finrst-timeout
seconds
Take the first command for an example：
Input ip command，it will list all arguments:
(00)access-list Named access-list
......
(13)nat NAT configuration commands
......
Please Input the code of command to be excute(0-20): 13
Input 13, select nat option，prompt is as below:
(00)inside Inside address translation
(01)log NAT Logging
(02)outside Outside address translation
(03)pool Define pool of addresses
(04)translation NAT translation entry configuration
Please Input the code of command to be excute(0-4): 4
Input 4，select translation option，prompt is as below:
(00)dns-timeout
......
(07)udp-timeout
......
Please Input the code of command to be excute(0-8): 7
Input 7，select udp-timeout option，prompt is as below:
(00)<0-2147483647>
(01)never Never timeout
Please Input the code of command to be excute(0-1): 0
Input 0，prompt is as below:
Please input a digital number:Please input a string:
Input timeout value.
There are mostly three methods to restrict the amount of NAT connections. You can implement these
three methods through executing following commands in global configure mode:
Command
ip nat
max-entries numbers
ip nat translation
A.B.C.D numbers
ip nat translation max-links all
numbers
Take the first command for an example:
Input ip command，it will list all arguments:
(00)access-list Named access-list
......
(13)nat NAT configuration commands
......
Please Input the code of command to be excute(0-20): 13
Input 13, select nat option，prompt is as below:
(00)inside Inside address translation
(01)log NAT Logging
(02)outside Outside address translation
(03)pool Define pool of addresses
Model Name
Changes the TCP FIN or RST timeout value from 1 minute.
Specify timeout for NAT DNS flows
Specify timeout for NAT UDP flows
Timeout in seconds
Configure the maximum amount of translation items. (Default
translation
value is 4000)
As to a specified inside IP address, this command will restrict
max-links
the maximum amount of NAT connection items this IP
address can establish.
As to all inside IP addresses, this command will restrict the
maximum amount of NAT connection items a single IP
address can establish.
Purpose
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