TOPEX BYTTON HSDPA
User’s Manual
pag. 47
Advanced Iptables Add
This link provides you access to a console where you can add and edit rules for
routing:
The firewall and advanced packet routing can be configured using the
iptables
commands. For more
information, see
http://www.netfilter.org
.
Warning!
Please remember that if you change the default values you may compromise your network
security by allowing entrusted access. These configuration options need an advanced level of knowledge
regarding network security and Linux kernel packet handling.
Note :
As you may see, the visible settings of the NAT/firewall configuration page are quite few. This
happens because the basic rules for address translation and packet filtering
are already defined
, and
they are not directly accessible to the user. Since they can’t be changed, they are not visible!
What you see are the additional rules, the ones that you are allowed to modify, to supplement or delete.
The firmware of BYTTON HSDPA automatically installs the basic rules that are required. For instance, if
you enable the Webcam feature, the firmware opens the port 2000 for TCP traffic, if you enable the NTP
service it opens port 123 for UDP traffic, and so on.
5.4.2. Static Routes
Routing means determining and prescribing the path or method used for forwarding data packets. This
option page is concerned with fixed (static) routes. It shows the current routing table for BYTTON
HSDPA and allows you to define up to 10 (ten) static routes.
