AudioCodes Mediant 500 E-SBC, User Manual

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User's Manual 15. Services
Version 6.8 185 Mediant 500 E-SBC
Parameter Description
Web: Override Router
CLI: override-router-address
[DhcpServer_OverrideRouter]
Defines the IP address (IPv4 in dotted-decimal notation) of
the default router that the DHCP server assigns the DHCP
client. The value is sent in DHCP Option 3 (Router).
The default value is 0.0.0.0. If not specified (empty or
“0.0.0.0”), the IP address of the default gateway configured in
the Interface table for the IP network interface that you
associated with the DHCP server (see the 'Interface Name'
parameter above) is used.
Web: SIP Server
CLI:sip-server
[DhcpServer_SipServer]
Defines the IP address or DNS name of the SIP server that
the DHCP server assigns the DHCP client. The client uses
this SIP server for its outbound SIP requests. The value is
sent in DHCP Option 120 (SIP Server). After defining this
parameter, use the 'SIP server type' parameter (see below)
to define the type of address (FQDN or IP address).
The valid value is a string of up to 256 characters. The
default is 0.0.0.0.
Web: SIP server type
CLI: sip-server-type
[DhcpServer_SipServerType]
Defines the type of SIP server address. The actual address is
defined in the 'SIP server' parameter (see above). Encoding
is done per SIP Server Type, as defined in RFC 3361.

[0] DNS names = (Default) The 'SIP server' parameter is
configured with an FQDN of the SIP server.

[1] IP address = The 'SIP server' parameter is configured
with an IP address of the SIP server.
15.1.2 Configuring the Vendor Class Identifier
The DHCP Vendor Class table lets you configure up to 10 Vendor Class Identifier (VCI)
names (DHCP Option 60). When the table is configured, the device's DHCP server
responds only to DHCPDiscover requests that contain Option 60 and that match one of the
DHCP VCIs configured in the table. If you have not configured any entries in the table, the
DHCP server responds to all DHCPDiscover requests, regardless of the VCI.
The VCI is a string that identifies the vendor and functionality of a DHCP client to the
DHCP server. For example, Option 60 can show the unique type of hardware (e.g.,
"AudioCodes 440HD IP Phone") or firmware of the DHCP client. The DHCP server can
then differentiate between DHCP clients and process their requests accordingly.
The following procedure describes how to configure the DHCP VCIs in the Web interface.
You can also configure this using the table ini file parameter, DhcpVendorClass or CLI
command, configure voip > dhcp vendor-class.

To configure DHCP Vendor Class Identifiers:
1. Open the DHCP Servers page ( Configuration tab > VoIP menu > Services > DHCP
Severs ).
2. In the DHCP Servers table, select the row of the desired DHCP server for which you
want to configure VCIs, and then click the
DHCP Vendor Class Table link located at
the bottom of the page; the DHCP Vendor Class Table page opens.