Security recommendations
SCALANCE M826
Operating Instructions, 08/2018, C79000-G8976-C362-05
15
Protocol
Protocol/port
number
Port status
Default port status
Authentication Encryption
Local access External
access
DNS Client
UDP/53
Open
(when configured)
Open
Closed
No
No
Syslog
UDP/514
Open
(only outgoing)
Closed
Closed
No
No
IPsec/IKE
UDP/500
UDP/4500
Open
(when configured)
Closed
Open
Yes
Yes
DHCP server
UDP/67
Open
(when configured)
Open
Closed
No
No
DHCP server
UDP/67
Open
(when configured)
Open
Closed
No
No
NTP client
UDP/123
Open
(only outgoing)
Closed
Closed
No
No
NTP server
UDP/123
Open
Closed
Closed
No
No
Siemens Remote
Service
(cRSP/SRS)
TCP/443
Open
(only outgoing)
Closed
Closed
Yes
Yes
PROFINET
UDP/34964 Open
Open
Open
No
No
OpenVPN to
SINEMA RC
TCP, UDP
depending
on server
config [only
with Key-
Plug]
Open
(only outgoing)
Closed
Closed
Yes
Yes
TFTP
UDP/69
Open
(only outgoing)
Closed
Closed
No
No
DynDNS
TCP/80
Open
(only outgoing)
Closed
Closed
No
No
Telnet
TCP/23
Open
(when configured)
Open
Closed
Yes
No
Ping
ICMP
Open
Open
Closed
No
No
RADIUS client
UDP/1812
UDP/1813
Open
(when configured)
Closed
Closed
No
No
TIA Portal Cloud
Connector
1)
TCP/9023
(variable)
Open
(when configured)
Open
Closed
No
No
SMTP
TCP/25
Open
(only outgoing)
Closed
Closed
No
No
HTTP proxy
TCP/variable Open
(only outgoing)
Closed
Closed
No
No
1)
Only with SCALANCE M804PB
Summary of Contents for SIMATIC NET SCALANCE M826
Page 7: ...Preface SCALANCE M826 Operating Instructions 08 2018 C79000 G8976 C362 05 7 ...
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Page 16: ...Security recommendations SCALANCE M826 16 Operating Instructions 08 2018 C79000 G8976 C362 05 ...
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Page 74: ...Index SCALANCE M826 74 Operating Instructions 08 2018 C79000 G8976 C362 05 ...