List of available protocols
The following is a list of all available services and their ports through which the device can be
accessed.
Service
Protocol/
Port number
Default port status
Configurable
Authentica‐
tion
Encryption
Local access
External ac‐
cess
1)
Service
Port
DHCP client
UDP/68
Closed
2)
Closed
✓
--
--
--
DHCP server
UDP/67
Closed
Closed
3)
✓
--
--
--
DNS client
TCP/53
UDP/53
Outgoing only Outgoing only
✓
--
--
--
DNS server
TCP/53
UDP/53
Open
4)
Closed
✓
--
--
--
DynDNS
TCP/80
Outgoing only Outgoing only
✓
--
✓
--
HTTP
TCP/80
Open
Closed
✓
✓
✓
--
HTTP Proxy
TCP/80
TCP/443
Outgoing only Outgoing only
✓
✓
Optional
--
HTTPS
TCP/443
Open
Closed
✓
✓
✓
✓
IPsec/IKE
UDP/500
UDP/4500
Closed
Closed
✓
--
✓
✓
NTP client
UDP/123
Outgoing only Outgoing only
✓
✓
--
--
NTP client (se‐
cure)
UDP/123
Outgoing only Outgoing only
✓
✓
✓
--
NTP server
UDP/123
Closed
Closed
✓
✓
--
--
NTP server (se‐
cure)
UDP/123
Closed
Closed
✓
✓
✓
--
OpenVPN
UDP/1194
TCP/1194
Outgoing only Outgoing only
✓
✓
✓
✓
Ping
ICMP
Open
Closed
✓
--
✓
--
PROFINET
UDP/34964
Closed
Closed
--
--
--
--
RADIUS client
TCP/1812
UDP/1812
Outgoing only Outgoing only
✓
✓
✓
--
SFTP
TCP/22
Outgoing only Outgoing only
✓
✓
✓
✓
Siemens Re‐
mote Service
(cRSP/SRS)
TCP/443
Outgoing only Outgoing only
✓
--
Optional
✓
SINEMA RC
HTTPS/443
and TCP/UDP
depending on
the server con‐
figuration
Outgoing only Outgoing only
✓
✓
✓
✓
SMTP
TCP/25
Outgoing only Outgoing only
✓
✓
--
--
SMTP (Secure)
TCP/465
TCP/587
Outgoing only Outgoing only
✓
✓
Optional
✓
SNMPv1
UDP/161
Open
Closed
✓
✓
--
--
SNMPv3
UDP/161
Open
Closed
✓
✓
Optional
Optional
SNTP
UDP/123
Closed
Closed
✓
--
--
--
Security recommendation
SCALANCE S615 Web Based Management
28
Configuration Manual, 11/2019, C79000-G8976-C388-08