Siemens SIMATIC RTU3030C Operating Instructions Manual page 73

Table 4- 1 Server ports of the LAN interface
Protocol / function Port number (pro-
tocol)
HTTP 80 (TCP)
HTTPS 443 (TCP)
DNS 53 (UDP)
DHCP 67 / 68 (UDP)
DNP3 20000 *
(TCP/UDP)
IEC 2404 * (TCP)
Table 4- 2 Server ports of the WAN interface
Protocol / function Port number (pro-
tocol)
HTTPS 443 (TCP)
Table 4- 3 Server ports in the tunnel of the VPN interface
Protocol / function Port number (pro-
tocol)
HTTP 80 (TCP)
HTTPS 443 (TCP)
DNP3 20000 * (TCP)
IEC 2404 * (TCP)
Ports of the PC, of communications partners and routers
Make sure that you open the required client ports in their firewalls in your configuration PC,
the communications partners of the RTU and in intermediary routers.
This can be:
● TeleControl Basic / 55097 * (TCP)
● ST7 / 26382 * (TCP)
● FTP / 21 * (TCP) (and dynamically decided by the server, passive mode)
● DHCP / 67, 68 (UDP) (only LAN)
● NTP / 123 (UDP)
● SMTP / 25 * (TCP) (only LAN and WAN)
● DNS / 53 (UDP) (only LAN and WAN)
● DynDNS / 443 (TCP) (only WAN)
● SINEMA RC Autoconfiguration / 443 * (TCP) (only WAN)
● SINEMA RC and OpenVPN / 1194 * (UDP) (only WAN)
RTU3030C
Operating Instructions, 09/2017, C79000-G8976-C382-04
Default of the port Port status
Open Open after configuration
Open Open
Open Open
Open Open after configuration
Closed Open after configuration
Closed Open after configuration
Default of the port Port status
Closed Open after configuration
Default of the port Port status
Open Open after configuration
Open Open
Closed Open after configuration
Closed Open after configuration
Configuration (WBM)
4.1 Security recommendations
Authentication
Yes
Yes
No
No
Yes, when secure
authentication is ena-
bled.
No
Authentication
Yes
Authentication
Yes
Yes
Yes, when secure
authentication is ena-
bled.
No
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