4.9 IP routing, NAT settings
In the
Network
menu,
Firewall
item,
Traffic Rules
tab you can setup the
Traffic Rules
, and
the
Source NAT
settings.
You can add a new rule by the
button.
When you have modified the settings, save them by the
Save & Apply
button.
Here you can open ports (e.g. for TCP) for the packages, or you can define new forwarding rule
settings for the interfaces (
New forward rule
).
Always set the rules carefully so as not to exclude the possibility of basic communication, and you
should also make sure that the router remains available on the network, because it is easy to exclude
ourselves or just the possibility of remote login.
You should find out about the standard port numbers used by each service
(E.g. FTP: port 21,
SSH/Telnet: port 22, web: port 80, etc).
Properly designed port filters and rules minimize communication, which is very important from a
data traffic point of view, and can minimize the risk of an open vulnerability. It's a good idea to set
the rules so that only the most necessary services and ports can distribute data on the network.
