DataRoute voice User Manual
39
11.
Firewall
11.1
Firewall Settings
Please go to path:
Firewall
->
Firewall Settings
page, check
Enable
to activate
Global
firewall settings
, then click
Apply/Save
.
Note
: three Firewall levels are supported in the device, they are:
Low: enable basic firewall features - prevent port scanning; allow PING from WAN side;
allow ICMP redirect messages from WAN side.
Middle: in addition to Low level, prevent ICMP redirect messages.
High: in addition to Middle level, prevent SYN Flood attack; against PING from WAN side.
Note:
by default the Firewall is enabled and set to the “High” setting – it is recommended
that to maintain maximum security this setting is not changed,
11.2
IP Filters
When the firewall is enabled on a WAN or LAN interface, all incoming IP traffic is BLOCKED.
However, some IP traffic can be
ACCEPTED
by setting up filters.
Please go to path:
Firewall
->
IP Filters
-> Incoming IP Filtering Setup.
4Gon www.4Gon.co.uk [email protected] Tel: +44 (0)1245 808295 Fax: +44 (0)1245 808299
