Siemens SIMATIC NET SCALANCE SC-600 - Page 20

Security recommendations
SCALANCE SC-600
20 Operating Instructions, 10/2021, C79000-G8976-C453-04
Service/Protocol
Protocol/
Default status
Configurable
Authenticati
Encryption
SINEMA RC
HTTPS/443
and
TCP/UDP
depending
on the
server
configuratio
n
Outgoing only
Outgoing only
✓
✓
✓
✓
SMTP Client
TCP/25
Outgoing only
Outgoing only
✓
✓
Optional
--
SMTP (secure)
TCP/465
TCP/587
Outgoing only
Outgoing only
✓
✓
Optional
✓
SNMPv1/v2c
UDP/161
Open
Closed
✓
✓
--
--
SNMPv3
UDP/161
Open
Closed
✓
✓
Optional
Optional
SNMP Traps
UDP/162
Outgoing only
Outgoing only
✓
✓
--
--
SNTP Client
UDP/123
Closed
Closed
✓
✓
--
--
SSH
SFTP
TCP/22
Open
Closed
✓
✓
✓
✓
Syslog Client
UDP/514
Outgoing only
Outgoing only
✓
✓
--
--
Syslog Client TLS
TCP/6514
Outgoing only
Outgoing only
✓
✓
--
✓
TFTP
UDP/69
Outgoing only
Outgoing only
✓
✓
--
--
VRRP
IP/112
Closed
Closed
--
✓
--
--
*)
Depending on the device type, VLAN1 and VLAN2 are on different physical ports:
SC6x2
-2C: VLAN1 = port 1, VLAN2 = port 2
SC6x6-2C: VLAN1 = port 1-4, VLAN2 = port 5-6
Layer 2 services
Default status
Configurable
DCP
Open (when configured)
✓
LLDP
Open (when configured)
✓
SIMATIC NET TIME
Open (when configured)
✓
VLAN
Open (when configured)
✓