Avaya 4600 Series Administrator's Manual page 63

- A 4600 Series IP Telephone-specific DHCP option specifying information such as:
TFTP server and Avaya Media Server Gatekeeper IP Addresses, or SIP-specific
parameters, such as SIPPROXYSRVR, as defined in
Customizable System
#176. You can set this option value, for example, to either of the following strings:
MCIPADD=xxx.xxx.xxx.xxx,MCPORT=yyyy,TFTPDIR=<path>,TFTPSRVR=
zzz.zzz.zzz.zzz
OR
MCIPADD={list of DNS names}, MCPORT=yyyy, TFTPDIR=<path>, TFTPSRVR= {list
of DNS names}
As of Release 2.4, also use Option 176 to identify the VLAN IDs used for the Ethernet
line interface and the secondary Ethernet interface for VLAN separation. In this
instance, if your voice VLAN ID is xxx and your data VLAN ID is yyy, at a minimum,
add the following string to Option 176:
L2Q=1,L2QVLAN=xxx,PHY2VLAN=yyy
The following is the recommended format for VLAN separation on dynamically
programmed IP telephones. In this example,
L2Q=1,L2QVLAN=xxx,VLANSEP=1,PHY2VLAN=yyy,PHY2PRIO=z
To enable VLAN separation, also set related parameters in the 46xxsettings.txt file, as
described in
Note:
The total length of the DHCP packet cannot exceed 1024 bytes.
Note:
List the TFTPDIR value before the TFTPSRVR value, if the latter is specified in
the SSON.
Some DHCP applications limit the length of Option 176 to 247 characters.
You can have SIP-specific, H.323-specific, or common system parameters in the
same SSON Option. All such parameters are downloaded to all IP telephones,
but only the relevant parameters for a given telephone are acted upon.
The 4600 Series IP Telephones ignore any vendor proprietary options such as
Microsoft-specific Option 250, used by a Microsoft DHCP server when any option
value exceeds 255 bytes.
The 4600 Series IP Telephones do not support Regular Expression Matching, and therefore, do
not use wildcards. See
In configurations where the upgrade script and application files are in the default directory, do
not use the TFTPDIR=<path>.
You do not have to use Option 176. If you do not use this option, you must ensure that the key
information, especially TFTPSRVR, MCIPADD, and MCPORT, is administered appropriately
Parameters. Use the Site-Specific Option Number (SSON) at
4600 Series IP Telephone Scripts and Application Files
Administering Options for the 4600 Series IP Telephones
4600 Series IP Telephone
on page 78.
on page 101.
Issue 8 July 2008
DHCP
63