Security recommendations
SCALANCE W788-x / W748-1
Operating Instructions, 03/2022, A5E03678333-17
17
Service
Protocol / Port
number
Default port
status
Configurable
Authentication Encryption
Port
Service
DHCP Client IPv4
UDP/68
Outgoing only
--
✓
--
--
DHCP Client IPv6
UDP/546
Outgoing only
--
✓
--
--
DHCP Server
UDP/67
Closed
--
✓
--
--
DNS Client
TCP/53
UDP/53
Outgoing only
--
✓
--
--
EthernetIP
TCP/44818
UDP/2222
UDP/44818
Closed
--
✓
--
--
HTTP
TCP/80
Open
✓
✓
✓
--
HTTPS
TCP/443
Open
✓
✓
✓
✓
NTP Client
UDP/123
Outgoing only
✓
✓
--
--
PROFINET
UDP/34964
UDP/49154
UDP/49155
Open
--
✓
--
--
RADIUS Client
UDP/1812
Outgoing only
✓
✓
✓
--
Remote Capture
TCP/2002
Closed
--
✓
--
--
SFTP Client
TCP/22
Closed
✓
✓
✓
✓
SMTP Client
TCP/25
Closed
✓
✓
--
--
SMTP Client (secure)
1)
TCP/465
Closed
✓
✓
✓
✓
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 (secure) Client TCP/6514
Closed
✓
✓
--
✓
Telnet
TCP/23
Closed
1)
/
Open
2)
✓
✓
✓
--
TFTP Client
UDP/69
Outgoing only
✓
✓
--
--
1) Only for SCALANCE W1700ac
2) Only for SCALANCE W700n