BB005x Installation and Configuration Guide
Security Level = Low
External/Internal External/DMZ DMZ/Internal
Protocol Port
In
Out In
Out In
Out
http 80
X
Yes
Yes
Yes
Yes
Yes
dns 53
Yes
Yes
Yes
Yes
Yes
Yes
ftp 21
X
Yes
Yes
Yes
Yes
Yes
telnet 23
X
Yes
Yes
Yes
Yes
Yes
smtp 25
X
Yes
Yes
Yes
Yes
Yes
pop3 110
X
Yes
Yes
Yes
Yes
Yes
nntp 119
X
Yes
Yes
Yes
Yes
Yes
Real aud./vid. 7070
Yes
X
Yes
Yes
Yes
Yes
Icmp N/A
Yes
Yes
Yes
Yes
Yes
Yes
H.323 1720
Yes
Yes Yes
Yes
Yes
Yes
T.120 1503
Yes
Yes
Yes
Yes
Yes
Yes
SSH 22
Yes
Yes
Yes
Yes
Yes
Yes
►
Configuring Firewall Policy
When none of the preset levels of security fit a particular network, the BB005x
allows setting customized security policies where users can add and configure
their own packet filters.
To configure a specific security policy:
1. Click on
Advanced Configuration
and then click on
Security.
2. Make sure that the Firewall option is enabled and click on
Change State
3. Click on
Firewall Policy Configuration
under the Policies, Triggers and
Intrusion Detection section at the bottom of the screen.
4. Click on
New Policy
. The Firewall Add Policy Screen will appear
5. Select interfaces of type internal or external
6. Decide whether validators will block or allow traffic
Selecting “allow” will allow traffic from all hosts that have validators and block
traffic from all other hosts
Selecting “block” will block traffic from all hosts that have validators and allow
traffic from all other hosts.
7. Click on
Apply
and the new policy will then be added to the Firewall
configuration.
All that is needed now is to configure the port filters and the validators
associated with the new security policy. Port filters are specific rules that
determine what kind of traffic can pass between the two interfaces. Validators
allow/block traffic based on the source/destination IP address and netmask.
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