NAT Tables are a expanded type of source NAT for a network or IP address range. The NAT Tables connection object rewrites the source IP address to a source NAT IP address range. To rewrite both the destination and the source address of the connection, you can choose to use a NAT Table connection object with a MAP access rule. You can enter multiple rewriting maps that are are processed from the top to the bottom. The first matching rewrite map is used.
Create a NAT Table Connection Object
- Go to CONFIGURATION > Configuration Tree > Box > Virtual Servers > your virtual server > Assigned Services > Firewall > Forwarding Rules.
- From the left menu, click Connections.
- Click Lock.
- Right-click the table and select New >NAT Table.
Enter a Name for the NAT Table.
- In the Original Address/Net/Range field, enter the source IP range or network.
- In the Translated Address field, enter the network that you want the source IP address or network to be rewritten to.
- Unless the destination network is connected by a Layer 2 bridge to the source network, select the Proxy ARP check box.
- Click New to add the addresses to the list.
- Click OK.
- Click Send Changes and Activate.
Apply the NAT Table to an Access Rule
To apply a NAT Table object to an access rule, select the object from the Connection list in the firewall rule settings.