Program The Controller Dhcp Server (Mxe, Cx/Cxi, Cx Ii/Cxi Ii) - Mitel 3300 Technician's Handbook

3300 ICP Technician's Handbook
Program the Controller DHCP Server (MXe, CX/CXi,
CX II/CXi II)
Note: DHCP options 128-133 used to configure Mitel IP endpoints have been
reclassified as public options by the Internet Engineering Task Force (see
RFC 2133 and RFC 3925). To comply with the change, Mitel recommends
using either option 43 or 125, depending on the server's ability to support
them and on administrator preference. (The embedded server supports both
options with 125 as the factory-programmed default.) The old options can still
be used to provide backward compatibility with IP sets that have yet to be
upgraded with firmware that supports the new options. After the upgrade, the
old options may be removed to prevent future conflicts with standard use or
other vendors' use of these options.
Note: Ensure that all LLDP-compliant telephones are upgraded to firmware
version 2.0.0.18 or later before you use LLDP on your network for VLAN
Discovery.
Note: LLDP-MED non-compliant telephones cannot use LLDP for VLAN
discovery. They must use DHCP VLAN discovery. Non-compliant sets are:
5001, 5005, 5010, 5020 IP Phones, 5140 IP Appliance, 5201, 5205, 5207,
5215 (single mode), 5220 (single mode), 5230 IP Phones, 5240 IP Appliance,
5485 IP Pager, and 5550 IP Console keypad.
Note: IP sets require a firmware upgrade to support the new DHCP options
introduced in Release 7.0; otherwise, the sets will fail to boot. Such failures
can occur, for example, in a resilient cluster of mixed software releases or
when sets with old firmware are added to a controller after it was upgraded
to Release 7.0. For the sets to boot, DHCP options 128-133 must be present
in the DHCP server. After the sets have booted, options 128-133 may be
removed to avoid future conflicts with standard use or other vendors' use of
these options.
For additional information on programming DHCP settings for the
3300 ICP, refer to the System Administration Tool Online Help.
To use an external DHCP Server, do not enable the internal DHCP server
and refer to "Configuring External DHCP Settings for E2T" on page 283 for
instructions.
Tip: You may need to change the IP address of your PC to match your
customer's network.
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