Available protocols
The following list provides you with an overview of the open protocol ports.
The table includes the following columns:
• Protocol
• Port
• Default port status
– Open
The factory setting of the port is "Open".
– Closed
The factory setting of the port is "Closed".
• Configurable port
– ✓
The port status can be changed.
– --
The port status cannot be changed.
• Authentication
Specifies whether the communication partner is authenticated.
• Encryption
Specifies whether or not the transfer is encrypted.
List of available protocols (local access via a local network)
The following is a list of all available protocols and their ports through which the device can be
accessed.
Protocol
Protocol/
Port number
Default port sta‐
tus
Configurable
port
Authentication
Encryption
DHCPv4 Server
UDP/67
Closed
✓
No
No
DHCPv4 Client
UDP/68
Open
✓
No
No
Discard
TCP/9
Open, filtered
--
No
No
Echo IP
UPD/TCP/9
Open
--
No
No
EtherNet/IP
TCP/44818
UDP/2222
UDP/44818
Closed
(Open with
EtherNetIP var‐
iants)
✓
No
No
HTTP
TCP/80
Open
✓
Yes
No
HTTPS
TCP/443
Open
✓
Yes
Yes
Kerberos
TCP/464
Open, filtered
--
No
No
NTP
SNTP
UDP/123
Closed
✓
No
No
NTP (secure)
UDP/123
Closed
✓
Yes
No
Recommendations on network security
SCALANCE XR-300WG
14
Operating Instructions, 03/2021, C79000-G8976-C454-07
