Configuring Icmp Messages - AudioCodes Mediant 4000 SBC User Manual

User's Manual
The following procedure describes how to configure DiffServ-to-VLAN priority mapping
through the Web interface. You can also configure it through ini file (DiffServToVlanPriority)
or CLI (configure network > qos vlan-mapping).

To configure DiffServ-to-VLAN priority mapping:
1. Open the QoS Mapping table (Setup menu > IP Network tab > Quality folder > QoS
Mapping).
2. Click New; the following dialog box appears:
3. Configure a DiffServ-to-VLAN priority mapping rule according to the parameters
described in the table below.
4. Click Apply, and then save your settings to flash memory.
Table 11-18: QoS Mapping Table Parameter Descriptions
Parameter
Index
Differentiated Services
diff-serv
[DiffServToVlanPriority_DiffServ]
VLAN Priority
vlan-priority
[DiffServToVlanPriority_VlanPriority]
11.9

Configuring ICMP Messages

Internet Control Message Protocol (ICMP) is one of the core protocols of the Internet
Protocol suite. It is used by network devices such as routers to send error messages
indicating, for example, that a requested service is unavailable.
You can configure the device to handle ICMP messages as follows:

Send and receive ICMP Redirect messages.

Send ICMP Destination Unreachable messages. The device sends this message in
response to a packet that cannot be delivered to its destination for reasons other than
congestion. The device sends a Destination Unreachable message upon any of the
following:
Version 7.2
Figure 11-11: QoS Mapping Table - Add Dialog Box
Defines an index number for the new table row.
Note: Each row must be configured with a unique index.
Defines a DiffServ value.
The valid value is 0 to 63. The default is 0.
Defines the VLAN priority level.
The valid value is 0 to 7. The default is 0.
Description
151
11. Network
Mediant 4000 SBC