Siemens SIMATIC NET SCALANCE W774-1 - Page 10

Security recommendations
SCALANCE W774-1 /W734-1
10 Operating Instructions, 07/2020, C79000-G8976-C325-14
List of available services
The following is a list of all available services and their ports through which the device
can be accessed.
The table includes the following columns:
• Service
The services that the device supports
• Default port status
This is the status of the port in the delivery state (factory setting).
• Configurable port/service
Indicates whether the port number or the service can be configured via WBM / CLI.
• Authentication
Specifies whether the communication partner is authenticated.
If optional, the authentication can be configured as required.
• Encryption
Specifies whether the transfer is encrypted.
If optional, the encryption can be configured as required.
Service Protocol/port
number
Default port
status
Configurable
Authentication Encryption
Port
Service
DHCP client
UDP/68
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
UDP/1812
Closed
✓
✓
✓
--
Remote Capture
TCP/2002
Closed
--
✓
--
--
SFTP client
TCP/22
Closed
✓
✓
✓
✓
SMTP client
TCP/25
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
✓
✓
✓
✓