Siemens SIMATIC NET SCALANCE S615

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