Motorola RFS Series, System Reference Manual

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Switch Security
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3. Refer to the following information as displayed within the Dynamic Translation tab.
4. Select an existing NAT configuration and click the Edit button to modify the settings of this existing NAT
configuration. The fields within the Edit screen are similar to those displayed when adding a new NAT
configuration.
Type Displays the NAT type as either:
• Inside - Applies NAT on packets arriving on interfaces marked as inside. These
interfaces should be private networks not accessible from outside (public)
networks.
• Outside - Applies NAT on packets coming in on interfaces marked as outside.
These switch interfaces should be public or outside networks accessible from
anywhere on the Internet.
Direction Displays the direction as either:
• Source - The inside network is transmitting data over the network to its
intended destination. On the way out, the source IP address is changed in the
header and replaced by the (public) IP address.
• Destination - Packets passing through the NAT on the way back to the switch
managed LAN are searched against the records kept by the NAT engine. The
destination IP address is changed back to the specific internal private class IP
address to reach the LAN over the switch managed network.
Access List Defines the packet selection criteria for NAT. NAT is applied only on packets which
match a rule defined in the access-list. Only the Standard IP and Extended IP
Access List can be used.
Interface Defines the interface through which packets are routed. The source IP address and
source port number (only if IP protocol is TCP or UDP) of packets is changed to the
interface IP address and a random port number.
NAT Address This is the IP address used during NAT. The users can configure this address.