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Service
DHCP Client IPv4
DHCP Client IPv6
DHCP Server
DNS Client
EthernetIP
HTTP
HTTPS
NTP Client
PROFINET
RADIUS Client
Remote Capture
SFTP Client
SMTP Client
SMTP Client (secure)
1)
SNMPv1/v2c
SNMPv3
SNMP Traps
SNTP Client
SSH
Syslog Client
Syslog (secure) Client TCP/6514
Telnet
TFTP Client
1) Only for SCALANCE W1700ac
2) Only for SCALANCE W700n
SCALANCE W1788-x / W1748-1
Operating Instructions, 03/2022, C79000-G8976-C484-05
Protocol / Port
Default port
number
UDP/68
Outgoing only
UDP/546
Outgoing only
UDP/67
Closed
TCP/53
Outgoing only
UDP/53
TCP/44818
Closed
UDP/2222
UDP/44818
TCP/80
Open
TCP/443
Open
UDP/123
Outgoing only
UDP/34964
Open
UDP/49154
UDP/49155
UDP/1812
Outgoing only
TCP/2002
Closed
TCP/22
Closed
TCP/25
Closed
TCP/465
Closed
UDP/161
Open
UDP/161
Open
UDP/162
Outgoing only
UDP/123
Outgoing only
TCP/22
Open
UDP/514
Closed
Closed
TCP/23
Closed
Open
UDP/69
Outgoing only
Configurable
status
Port
Service
--
--
--
--
--
✓
✓
✓
--
✓
--
✓
✓
✓
✓
✓
--
✓
✓
✓
✓
/
✓
1)
2)
✓
Security recommendations
Authentication
✓
--
✓
--
✓
--
✓
--
✓
--
✓
✓
✓
✓
✓
--
✓
--
✓
✓
✓
--
✓
✓
✓
--
✓
✓
✓
--
✓
Optional
✓
--
✓
--
✓
✓
✓
--
✓
--
✓
✓
✓
--
Encryption
--
--
--
--
--
--
✓
--
--
--
--
✓
--
✓
--
Optional
--
--
✓
--
✓
--
--
17
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