User manual

Firewall
141
Note
The example shown in the screenshot above forwards the SSH (secure shell) protocol to
an internal server (barry’s server). SSH allows encrypted remote access, typically to a
server running Linux, BSD or another Unix-like operating system.
In this example, port 2222 is used rather than the standard SSH port of 22, this is to allow
remote access using SSH to the SG unit itself, which runs an SSH server on port 22. So
a remote user connects to port 2222 on SG unit’s Internet address in order to access port
22 of barry’s server.
The following fields are displayed:
Descriptive Name An arbitrary name for this rule
Enable Uncheck to temporarily disable this rule
Create Packet Filter Rule Create a corresponding packet filter rule to accept
NATed packets, generally leave this checked unless
you want to manually create a more restrictive filter
rule through Rules