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Command Reference Guide
local <start ip address> <end ip address> global <start ip address>
<end ip address>
Use the local global command to define local and global network range of addresses for static 1:1 network
address translation (NAT) mapping. This command is entered from within the NAT pool's configuration
command set by using the ip nat pool command. Refer to
information.
Syntax Description
<start ip address>
<end ip address>
Default Values
No default values are necessary for this command.
Command History
Release 17.4
Functional Notes
Static pools define a local network range of addresses whose size must be equal to the global range.
Source NAT will translate from the local range to the global range. Destination NAT will translate from the
global range to the local range. The addresses do not have to start at the same offset. If this command is
entered and the two ranges are not of the same size, an error message is displayed. The command will fail
and the pool will remain in its original state. If the pool was configured with an existing address range prior
to issuing the failed command, that range will remain unchanged. If no address range was present, the
pool will remain incomplete.
In some situations, an address needs to be excluded that falls within a range. For example, suppose you
are excluding 10.1.1.10 because it is the address used for many-to-one source NAT for other nonstatic
NAT hosts. This can be accomplished by creating multiple pools. This configuration requires multiple policy
class entries, but each can use the same access control list (ACL).
Usage Examples
The following example creates a static NAT pool named POOL1 and defines the local range from 10.1.1.1
to 10.1.1.12 and the global range as 192.168.1.1 to 192.168.1.12:
(config)#ip nat pool POOL1 static
(config-natpool)#local 10.1.1.1 10.1.1.12 global 192.168.1.1 192.168.1.12
60000CRG0-35E
Specifies the first IP address in the range.
Specifies the last IP address in the range.
IP addresses should be expressed in dotted decimal notation (for example,
10.10.10.1).
Command was introduced.
Copyright © 2012 ADTRAN, Inc.
Global Configuration Mode Command Set
ip nat pool <name> on page 1057
for more
1235
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