5 Configuring Communication Connections
A-136
S7-CPs for Industrial Ethernet Configuring and Commissioning
Release 01/2007
C79000-G8976-C182-07
Table 5-4 , Fortsetzung
Application / Note Port Addresses
Range used by NCM in which a free port address is
searched for and assigned.
You can set any port address within this range.
from 2000 to 5000
Port addresses higher than 5000 are used by the system!
Note:
If you want to use these port addresses, please contact
your system administrator.
from 5000...65535
The following port numbers are reserved; you should not use these for other
purposes in the connection project engineering.
Table 5-5 Reserved Port Numbers
Protocol
Port Number Service
TCP 20, 21 FTP
TCP 25 SMTP
TCP 80 HTTP
TCP 102 RFC1006
TCP 135 RPC -DCOM
UDP 161 SNMP_REQUEST
UDP 34964 PN IO
UDP 65532 NTP
UDP 65533 NTP
UDP 65534 NTP
UDP 65535 NTP
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