Siemens SINAUT MD740-1 User Manual page 67

SINAUT MD740-1
If this SINAUT MD740-1 can be reached via the Internet
using the address 192.144.112.5, and if a different port
number has been set for remote access, then this number
must be entered at the remote site in the SSH client (e.g.
web browser), e.g.
ssh -p 22222 192.144.112.5
Firewall rules to accept SSH access
This lists the fixed firewall rules. These apply to the incoming
data packets of an SSH remote access.
Delete rule
! Click on Delete next to the entry concerned.
Set new rule
! If you want to set a new rule, click on New.
Set the required new rule (see below) and click on OK or
Apply.
From IP
Here you enter the address(es) of the computer(s) which is/are
allowed remote access.
You can make the following possible entries:
IP address: 0.0.0.0/0 means all addresses. To denote a range,
use CIDR syntax - see CIDR (Classless InterDomain Routing),
page 79.
Interface
extern (fixed)
Action
Possibilities: Accept / Refuse / Reject
Accept means that the data packets may pass.
Refuse means that the data packets are turned away so that
the sender is informed of the refusal.
Reject means that data packets are not allowed to pass. They
are swallowed so that the sender is not informed of their
whereabouts.
Log
For each individual firewall rule you can determine whether,
when the rule is applied,
•
the event is to be logged - set Log to Yes
•
or not - set Log to No (default setting).
Configuration
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