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nat {tcp|udp} <globalportfrom> [<globalportto>] <localip>

<localportfrom> [<localportto>] [{enable|disable}]

The parameters have the following meaning:

Parameter Description Range of values / note

tcp Assignment of TCP for the follow‐

ing global port

udp Assignment of UDP for the follow‐

ing global port

globalportfrom Start port of the global port range enter the start port

globalportto End port of the global port range enter the end port

localip IPV4 address of the node in the lo‐

cal network

enter a valid IPv4 address

localportfrom Start port of the local port range enter the start port

localportto End port of the local port range enter the end port

enable Enables the NAT rule -

disable Disables the NAT rule -

Note

Global port

If the port is already occupied by a local service, for example Telnet, a warning is displayed.

In this case, avoid using TCP port 23 (Telnet), port 22 (SSH), ports 80/443 (http/https:

reachability of the client with the WBM) and UDP port 161 (SNMP) as global port.

Result

The translation list is configured.

If the command is executed without the optional parameters enable|disable, the newly

created address assignment is disabled as default.

Further notes

You show the NAT configuration and the translation list with the show nat command.

You delete entries with the no nat command.

Siemens SCALANCE W770 Series User Manual

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