Enterasys Networks X-Pedition XSR CLI - Manual (Page 262)

Network Address Translation Commands
5-186 Configuring the Internet Protocol
XSR(config)#ip nat service list 1 ftp tcp port 2021
XSR(config)#access-list 1 permit 10.1.1.1
This example sets non‐standard port 2021 and standard port 21 for FTP. Be aware that if the FTP
server is using both the default and another port, both ports must be configured in NAT.
XSR(config)#ip nat service list 1 ftp tcp port 21
XSR(config)#ip nat service list 1 ftp tcp port 2021
XSR(config)#access-list 1 permit 10.1.1.1
ip nat source (interface mode - NAPT)
This command applies Pool Network Address Translation (NAT) and Network Address Port
Translation (NAPT) rules to an XSR interface. Both standard and extended access lists are
supported as well as Network Address Port Translation.
Syntax
ip nat source [list access-list-number]{assigned overload | address ip-address
overload | pool pool_name overload}
Syntax of the “no” Form
The no command removes NAT rules from the interface:
no ip nat source [list access-list-number]{assigned overload | address ip-address
overload | pool pool_name overload}
Mode
Interface configuration: XSR(config-if<xx>)#
Default:
No NAT (rule) specified for the interface.
Example
This example configures Serial interface 1/0 as the source IP address for outgoing packets:
XSR(config)#interface serial 1/0
XSR(config-if)#ip nat source assigned over
list access-
list-number Standard IP ACL number. Packets with source addresses that pass the ACL
(permitted by the list) are dynamically translated using the local global
address. If the ACL is not specified, the wildcard is assumed.
assigned IP address of the port used as the source IP address for outgoing packets.
ip-address Specified arbitrary IP address used as the global NAT IP address.
pool pool_name Group of addresses from which the global address will be chosen.
overload When overload is specified, the selected global address (either specified or
from the pool) will be used to perform NAPT, which ranges from port
20000 to 40960.