Remote programming

[Bryll 31]

I need to know what port or port range that's used when programming a 1500 CPU.

We need to update the settings of the CPU, and the customer can open up a router with "port forward" if I tell him what port to use.

Does anyone here have the knowledge about what port or ports that are used for the 1200 and the 1500 systems ?

[Bryll 31]

I got an answer from a support guy.

All Siemens CPU uses port 102 for S7 communication.