Command Reference Guide

3Com Router 3000 Ethernet Family
Command Reference Guide Chapter 11 NAT Configuration Commands
3Com Corporation
11-4
Use the undo nat address-group command to delete an IP address pool.
Address pool indicates the cluster of some outside IP addresses. If start-addr and
end-addr are the same, it means that there is only one address.
Caution:
z The length of an address pool (numbers of all addresses contained in an address
pool) cannot exceed 255.
z The address pool cannot be deleted, if it has been correlated to some certain
access control list to perform the address translation.
Example
# Configure an address pool from 202.110.10.10 to 202.110.10.15, with its NAT pool ID
being 1.
[3Com] nat address-group 1 202.110.10.10 202.110.10.15
11.1.4 nat aging-time
Syntax
nat aging-time { default | { dns | ftp-ctrl | ftp-data | icmp | pptp | tcp | tcp-fin |
tcp-syn | udp } seconds }
View
System view
Parameter
default: Sets the address translation lifetime values to the defaults.
dns: Sets the address translation lifetime for DNS to 60 seconds (default).
ftp-ctrl: Sets the address translation lifetime for FTP control links to 7200 seconds
(default).
ftp-data: Sets the address translation lifetime for FTP data links to 240 seconds
(default).
icmp: Sets the address translation lifetime for ICMP to 60 seconds (default).
pptp: Sets the address translation lifetime for PPTP to 86400 seconds (default).
tcp: Sets the address translation lifetime for TCP to 86400 seconds (default).
tcp-fin: Sets the address translation lifetime for TCP FIN or TCP RST connections to
60 seconds (default).