NEXPEED NBG440 User’s Manual
NexComm Systems, Inc. 85 PAGE
Configuring dynamic mapping
Usually, this method takes a dynamic n:n translation. The translations between local IP
addresses and global IP addresses are dynamic.
Step1
> Create the global IP address pool. It is possible to set up multiple pools, but the
overlapping of the range of IP addresses for each pool is not allowed.
COMMAND
(conf)# nat pool <poolname> <global-startip> <global-endip>
Parameters
<poolname> - name of the IP address pool
<global-startip> - first global IP address
<global-endip> - last global IP address
Step2
> Make the mapping between local IP addresses and the global IP address pool.
COMMAND
(conf)# nat map <local-startip> <local-endip> <poolname>
Parameters
<global-startip> - first global IP address
<global-endip> - last global IP address
<poolname> - name of the IP address pool to be mapped
Step3
> Enable NAT. Set up the outside interface that will be subject to translation.
COMMAND
(conf)# nat outside <ifname>
Parameters
<ifname> - Interface name
Removing classic NAT configuration
Step1
> Disable NAT. The router stops the NAT translation.
COMMAND
(conf)# nat no outside <ifname>
Parameters
<ifname> - Interface name
Step2
> Remove static mappings or dynamic mappings using the following command.
The router clears all entries in the NAT translation table.
COMMAND
(conf)# nat no static <local-ip>
(conf)# nat no map <local-startip> <local-endip> <poolname>
Step3
> Remove the global IP address pool using the following command. You can
delete the pool after you delete all maps related that pool.
COMMAND
(conf)# nat no pool <poolname>
