3Com Router 3031, Command Reference Manual

Page: 461 / 838

NAT Configuration Commands 461
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vpn-instance vpn-instance-name: Displays the NAT table items of a special VPN.
The omittance of this parameter means that NAT items for all VPNs will be
listed out.
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slot slot-number: Designates the slot number of an interface. This parameter is
reserved especially for distributed environment use.
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destination ip-addr: Displays the NAT table items of a special IP destination.
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source global global-addr: Only displays the NAT entry with address as
global-addr after NAT.
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source inside inside-addr: Only displays the NAT entry with internal address as
inside-addr.
Description
Using the display nat command, you can display the configuration of address
translation. Users can verify if the configuration of address translation is correct
according to the output information after execution of this command. When
address translation connection information is displayed, the parameters of
global-addr and inside-addr can be specified for the display nat session command
simultaneously.
Example
Display all the information about address translation.
<3Com> display nat all
NAT address-group Information:
1: from 11.1.1.1to11.1.1.20
2: from 22.1.1.1to22.1.1.20
NAT outbound information:
Serial0/0/0: acl(11)-NAT address-group(1) [no-pat]
Serial0/0/0: acl(22)-NAT address-group(2) [no-pat]
Server in private network information:
InterfaceGlobalAddrGlobalPort InsideAddr InsidePort Pro
Serial0/0/0201.119.11.380805.5.5.580(www)6(tcp)
Serial0/0/0201.119.11.32121 5.5.5.521(ftp)6(tcp)
NAT aging-time value information:
tcp------aging-time value is 240(seconds)
udp------aging-time value is 40(seconds)
icmp-----aging-time value is 20(seconds)
The information above indicates:
Two address pools are configured: Address pool 1 ranges from 11.1.1.1 to
11.1.1.20, and address tool 2 ranges from 22.1.1.1 to 22.1.1.20.
Two address translation associations are configured at Serial0/0/0: ACL 11 is
associated with address pool 1 and one-to-one address translation is performed;
and ACL 22 is associated with address pool 2, and one-to-one address translation
is performed.
Serial0/0/0 is configured with 2 internal servers: the www server of
http://202.119.11.3:8080, whose internal address is 5.5.5.5; and the ftp server of
ftp://202.119.11.3:2121, whose internal address is 5.5.5.5.