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Recommendations on network security
Extender for SCALANCE XM-400
Operating Instructions, 09/2018, C79000-G8976-C332-08
17
Protocol
Protocol/
Port number
Default port status
Configurable port Authentication
Encryption
TELNET
TCP/23
Open
--
Yes
No
SSH
TCP/22
Open
--
Yes
Yes
HTTP
TCP/80
Open
--
Yes
No
HTTPS
TCP/443
Open
✓
Yes
Yes
SNMP
UDP/161
Open
✓
Yes
Yes
(when configured)
SNTP
NTP
UDP/123
Closed
✓
No
No
PROFINET
UDP/34964,
UDP/49154, 49155
Open
--
No
No
EtherNet/IP
TCP/44818,
UDP/2222,44818
Closed
✓
No
No
DHCP
UDP/67,68
Open
✓
No
No
Syslog
UDP/514
Closed
✓
No
No
RADIUS
UDP/1812,1813
Closed
✓
No
No
TFTP
UDP/69
Open
--
No
No
RIP
UDP/520
Closed
--
No
No