AudioCodes Mediant 800B MSBR User Manual page 162

Parameter
[AccessList_Packet_Size]
Byte Rate
CLI: byte-rate
[AccessList_Byte_Rate]
Burst Bytes
CLI: byte-burst
[AccessList_Byte_Burst]
Action Upon Match
CLI: allow-type
[AccessList_Allow_Type]
Match Count
[AccessList_MatchCount]
The table below provides an example of configured firewall rules:
Table 17-2: Configuration Example of Firewall Rules
Parameter
Source IP
Prefix Length
Start Port and End
Port
Protocol
Use Specific
Interface
Interface Name
Byte Rate
Burst Bytes
Action Upon Match
The firewall rules in the above configuration example do the following:

Rules 1 and 2: Typical firewall rules that allow packets ONLY from specified IP
addresses (e.g., proxy servers). Note that the prefix length is configured.
User's Manual
Note: When filtering fragmented IP packets, this field relates to
the overall (re-assembled) packet size, and not to the size of
each fragment.
Defines the expected traffic rate (bytes per second), i.e., the
allowed bandwidth for the specified protocol. In addition to this
field, the 'Burst Bytes' field provides additional allowance such
that momentary bursts of data may utilize more than the defined
byte rate, without being interrupted.
For example, if 'Byte Rate' is set to 40000 and 'Burst Bytes' to
50000, then this implies the following: the allowed bandwidth is
40000 bytes/sec with extra allowance of 50000 bytes; if, for
example, the actual traffic rate is 45000 bytes/sec, then this
allowance would be consumed within 10 seconds, after which all
traffic exceeding the allocated 40000 bytes/sec is dropped. If the
actual traffic rate then slowed to 30000 bytes/sec, then the
allowance would be replenished within 5 seconds.
Defines the tolerance of traffic rate limit (number of bytes).
The default is 0.
Defines the firewall action to be performed upon rule match.

"Allow" = (Default) Permits these packets

"Block" = Rejects these packets
(Read-only) Displays the number of packets accepted or rejected
by the rule.
1 2
12.194.231.76 12.194.230.7
16 16
0-65535 0-65535
Any Any
Enable Enable
WAN WAN
0 0
0 0
Allow Allow
Description
Firewall Rule
3
0.0.0.0 192.0.0.0
0 8
0-65535 0-65535
icmp Any
Disable Enable
None Voice-Lan
40000 40000
50000 50000
Allow Allow
162
Mediant 800B MSBR
4 5
0.0.0.0
0
0-65535
Any
Disable
None
0
0
Block
Document #: LTRT-12813