Siemens SIMATIC NET SCALANCE W M766 Series

Security recommendations
SCALANCE WxM766
Operating Instructions, 03/2022, C79000-G8976-C617-03
17
Service
Protocol /
Port number
Default port
status
Configurable
Authenticati-
on
Encryption
1)
Port
Service
DHCP Client IPv4
UDP/68
Outgoing only
--
✓
--
--
DHCP Client IPv6
UDP/546
Outgoing only
--
✓
--
--
DNS Client
TCP/53
UDP/53
Outgoing only
--
✓
--
--
HTTP
TCP/80
Open
✓
✓
✓
--
HTTPS
TCP/443
Open
✓
✓
✓
✓
NTP- Client
UDP/123
Outgoing only
✓
✓
--
--
PROFINET
UDP/34964
UDP/49154
UDP/49155
Open
--
✓
--
--
RADIUS
UDP/1812
Outgoing only
✓
✓
✓
--
SFTP Server
TCP/22
Closed
✓
✓
✓
✓
SMTP Client
TCP/25
Closed
✓
✓
--
--
SMTP (secure)
TCP/465
Closed
✓
✓
Optional
✓
SNMPv1/v2c
UDP/161
Open
✓
✓
--
--
SNMPv3
UDP/161
Open
✓
✓
Optional
Optional
SNMP Traps
UDP/162
Outgoing only
--
✓
--
--
SNTP Client
UDP/123
Outgoing only
✓
✓
--
--
SSH
TCP/22
Open
✓
✓
✓
✓
Syslog Client
UDP/514
Closed
✓
✓
--
--
Syslog Client TLS
TCP/6514
Closed
✓
✓
--
✓
Telnet
TCP/23
Closed
✓
✓
✓
--
TFTP Server
UDP/69
Closed
✓
✓
--
--
TCP Event
TCP/26864
Closed
✓
✓
✓
--
1)
You can find additional information on the encryption methods used in the WBM
appendix "Ciphers used".