Figure 3-47: Firewall Settings Page - AudioCodes Mediant 800 MSBG User Manual

SIP User's Manual
Limit traffic to a pre-defined rate (blocking the excess)
Limit traffic to specific protocols, and specific port ranges on the device
For each packet received on the network interface, the table is scanned from the top down
until a matching rule is found. This rule can either deny (block) or permit (allow) the packet.
Once a rule in the table is located, subsequent rules further down the table are ignored. If
the end of the table is reached without a match, the packet is accepted. For detailed
information on the internal firewall, refer to the Product Reference Manual.
Notes:
To add firewall rules:
1. Open the 'Firewall Settings' page (Configuration tab > VoIP menu > Security
submenu > Firewall Settings).
2. In the 'Add' field, enter the index of the access rule that you want to add, and then
click Add; a new firewall rule index appears in the table.
3. Configure the firewall rule's parameters according to the table below.
4. Click one of the following buttons:
•
Apply: saves the new rule (without activating it).
•
Duplicate Rule: adds a new rule by copying a selected rule.
•
Activate: saves the new rule and activates it.
•
Delete: deletes the selected rule.
5. To save the changes to flash memory, see ''Saving Configuration'' on page 336.
Version 6.2
•
It is recommended to add a rule at the end of your table that blocks all
traffic and add firewall rules above it (in the table) that allow traffic (with
bandwidth limitations). To block all traffic, the following must be set:
- IP address to 0.0.0.0
- Prefix length of 0 (implies the rule can match any IP address)
- Local port range 0-65535
- Protocol "Any"
- Action Upon Match "block"
•
You can also configure the firewall settings using the ini file table
parameter AccessList (see ''Security Parameters'' on page 671).

Figure 3-47: Firewall Settings Page

95
3. Web-Based Management
February 2011