AudioCodes Mediant 4000 SBC User Manual page 167

User's Manual
2. Click New; the following dialog box appears:
3. Configure a firewall rule according to the parameters described in the table below.
4. Click Apply, and then reset the device with a save-to-flash for your settings to take
effect.
Parameter
Match
Index
Source IP
source-ip
[AccessList_Source_IP]
Source Port
src-port
[AccessList_Source_Port]
Prefix Length
prefixLen
[AccessList_PrefixLen]
Version 7.2
Figure 13-1: Firewall Table - Add Dialog Box
Table 13-1: Firewall Table Parameter Descriptions
Defines an index number for the new table row.
Note: Each row must be configured with a unique index.
Defines the IP address (or DNS name) or a specific host name
of the source network from where the device receives the
incoming packet.
The default is 0.0.0.0.
Defines the source UDP/TCP ports of the remote host from
where the device receives the incoming packet.
The valid range is 0 to 65535. The default is 0.
Note: When set to 0, this field is ignored and any source port
matches the rule.
(Mandatory) Defines the IP network mask - 32 for a single
host or the appropriate value for the source IP addresses.

A value of 8 corresponds to IPv4 subnet class A (network
mask of 255.0.0.0).

A value of 16 corresponds to IPv4 subnet class B (network
mask of 255.255.0.0).

A value of 24 corresponds to IPv4 subnet class C (network
mask of 255.255.255.0).
The IP address of the sender of the incoming packet is
trimmed in accordance with the prefix length (in bits) and then
compared to the parameter 'Source IP'.
The default is 0 (i.e., applies to all packets). You must change
Description
167
13. Security
Mediant 4000 SBC