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ELEASE

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Static NAT

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Parameter

PUBLIC_POOL_START

Below is an example of Dynamic NAT.

The command,

ADD NAT DYNAMIC USER NATD COUNT 4 PUBLIC_POOL_START 2.2.2.2

sets (the count of) "4" consecutive ISP-assigned addresses beginning with

the ISP-assigned address "2.2.2.2" to use for Dynamic NAT. In this case,

the range includes the ISP-assigned addresses, "2.2.2.2", "2.2.2.3",

"2.2.2.4", and "2.2.2.5". "NATD" represents the name that is assigned

for the connection for this configured range.

Each time a user connects to the public network, Dynamic NAT translates

the IP address from that user on the private network and maps it to the

first available public IP address from the contiguous range of ISP-assigned

addresses that you configured by using this command. The RAS 1500

maintains a table of active IP addresses on the public network mapped to

user IP addresses on the private network for the connection. Once the

connection to the public network is closed, the information in the table is

dropped and this IP address is free for the next connection. Each time a

user connects to the public network, the next available address from the

contiguous range is assigned, and a new table of mapped addresses is

established by the RAS 1500.

Release 2.5 includes support for Static NAT over the WAN interface. Static

NAT configures, and associates a name to, a mapping between and IP

address on the private network to a specific ISP-assigned address on the

public network that uses Static NAT.

You can set Static NAT through the Web Configuration Interface. From

the main, browser-based Web Configuration Interface page, click Select

NAT/PAT Configuration under the Network menu, choose NAT and

supply the following parameters:

User name

Public IP Address

Private IP Address

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Description

The first of the contiguous range of IP addresses

assigned by Dynamic NAT mapping.