To clear dynamic Network Address Translation (NAT) translations from the translation table, use the clear ip nat translationEXEC command.
clear ip nat translation {* | [inside global-iplocal-ip] [outside local-ipglobal-ip]}
clear ip nat translation protocol inside global-ip global-port local-ip local-port [outside
local-ipglobal-ip]
* Clears all dynamic translations.
inside Clears the inside translations containing the specified global-ip and local-ip addresses.
global-ip When used without the arguments protocol,global-port, and local-port, clears a simple translation that also contains the specified local-ipaddress. When used with the arguments protocol,global-port, and local-port, clears an extended translation.
local-ip (Optional) Clears an entry that contains this local IP address and the specified global-ip address.
outside Clears the outside translations containing the specified global-ip and local-ip addresses.
protocol (Optional) Clears an entry that contains this protocol and the specified global-ip address, local-ip address, global-port, and local-port.
global-port (Optional) Clears an entry that contains this global-port and the specified protocol, global-ip address, local-ip address, and local-port.
local-port (Optional) Clears an entry that contains this local-port and the specified protocol, global-ip address, local-ip address, and global-port.
EXEC
| Release | Modification | 11.2 | This command was introduced. |
|---|
Use this command to clear entries from the translation table before they time out.
The following example shows the NAT entries before and after the UDP entry being cleared:
Router# show ip nat translation Pro Inside global Inside local Outside local Outside global udp 171.69.233.209:1220 192.168.1.95:1220 171.69.2.132:53 171.69.2.132:53 tcp 171.69.233.209:11012 192.168.1.89:11012 171.69.1.220:23 171.69.1.220:23 tcp 171.69.233.209:1067 192.168.1.95:1067 171.69.1.161:23 171.69.1.161:23 Router# clear ip nat translation udp inside 171.69.233.209 1220 192.168.1.95 1220 171.69.2.132 53 171.69.2.132 53 Router# show ip nat translation Pro Inside global Inside local Outside local Outside global tcp 171.69.233.209:11012 192.168.1.89:11012 171.69.1.220:23 171.69.1.220:23 tcp 171.69.233.209:1067 192.168.1.95:1067 171.69.1.161:23 171.69.1.161:23
| Command | Description |
|---|---|
| ip nat | Designates that traffic originating from or destined for the interface is subject to NAT. |
| ip nat inside destination | Enables NAT of the inside destination address. |
| ip nat inside source | Enables NAT of the inside source address. |
| ip nat outside source | Enables NAT of the outside source address. |
| ip nat pool | Defines a pool of IP addresses for NAT. |
| ip nat translation | Changes the amount of time after which NAT translations time out. |
| show ip nat statistics | Displays NAT statistics. |
| show ip nat translations | Displays active NAT translations. |
Printed for apswan@ctr.ap.nic.in on Wed Mar 5 22:32:57 PST 2003
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