Program the DHCP Server

IMPORTANT:  DHCP options 128-135 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; 125 is 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. The following procedure applies to new installations only. For upgrade procedures, see the Technician's Handbook.

If you intend to rely on LLDP Link Layer Discovery Protocol. An An IEEE standard (801.1AB) that provides a vendor-neutral method for Ethernet network devices such as switches, routers and wireless LAN access points to advertise information about themselves to other nodes on the network and store the information they discover. Advertised nformation includes: device type description, boot and main revision, phone IP address, phone MAC address , duplex setting, power consumption, phone DN, attached devices, etc. The information is stored in a SNMP MIB that provides network management systems with accurate network mapping, inventory data and network troubleshooting information. VLAN Discovery in the network, you must first upgrade the firmware in LLDP-compliant IP Phones to version 2.0.0.18 or later. For upgrade procedures, see the 3300 ICP Technician's Handbook.

When you program the internal DHCP server of the 3300 ICP, the following conditions apply:

Programming

To program the DHCP server of the 3300 ICP:

  1. Issue the DBMS STAT maintenance command and ensure that the DBMS_Initialized Flag is ON (look for the line DBMS info: DBMS_Initialized is ON). Before the DHCP server will allocate leases, the DBMS_Initialized Flag must be ON.   See Using Maintenance Commands for instructions on how to enter a maintenance command.

  2. If the DBMS_Initialized Flag is OFF, enter the DBMS SAVE command to turn it on.

  3. DHCP Server form
    Disable the DHCP server.

  4. DHCP Subnet form
    Enter Name, IP Address, and Bit Mask information.

  5. DHCP Static IP Address form (Optional)
    Assign IP addresses to specific devices by using the MAC address of the device.
    We recommend you assign a static IP address to the E2T (skip this step for the CX, CXi, CX II, CXi II, MX, MXe, MXe Server and 100-user controllers).

  6. DHCP IP Address Range form. Complete the IP Address range.
    The following IP addresses are reserved for the Analog Main Board (AMB) and the CIMs on the ASUs and ASU IIs:

    169.254.10.0 to 169.254.10.15
    169.254.11.0 to 169.254.11.15
    169.254.12.0 to 169.254.12.15
    169.254.13.0 to 169.254.13.15
    169.254.14.0 to 169.254.14.15
    169.254.15.0 to 169.254.15.15
    169.254.16.0 to 169.254.16.15
    169.254.17.0 to 169.254.17.15
    169.254.18.0 to 169.254.18.15
    169.254.19.0 to 169.254.19.15
    169.254.20.0 to 169.254.20.15
    169.254.21.0 to 169.254.21.15
    169.254.22.0 to 169.254.22.15
    169.254.23.0 to 169.254.23.15
    169.254.24.0 to 169.254.24.15
    169.254.25.0 to 169.254.25.15
    169.254.26.0 to 169.254.26.15
    169.254.27.0 to 169.254.27.15
    169.254.28.0 to 169.254.28.15
    169.254.29.0 to 169.254.29.15
    169.254.30.0 to 169.254.30.15

    The addresses are assigned on a first-come, first served basis. Under normal conditions, AMB gets the first address assigned and after that, each CIM is assigned an address as the CIM is used.
     

  7. DHCP Options form
    Create options as required and apply to the required scope: Global, Subnet, or Range.

    Always create the following options:

  8. 3 Router, IP address

  9. 43 Vendor Specific Information, string value
    or
    125 Vendor-Identifying Vendor-Specific Information, string value

  10. 66 TFTP Server, IP address format

  11. 67 Boot file, string value (always /sysro/E2T8260)

If there are 5230 IP Phones on the system, create the following DHCP options:

If there are IP-DECT Wireless telephones on the system, create the following DHCP options:

If there are IP Phones not yet upgraded to the Release 7.0 DHCP options (60/43 or 124/125), create the following DHCP options:

  1. DHCP Options form (in a cluster environment)
    Any IP Console in a cluster must be programmed with a static IP Address.

  2. If a different router is need for the IP Console, repeat step 6 for Option 3 and set the Value to the IP address of the router.

  3. DHCP Lease Viewer form
    Ensure that there is no DHCP IP Address Lease for the IP Console MAC Addresses. If there is, delete it and then power off and power on the device.

  4. DHCP Server form
    Enable the DHCP server.

To use an external DHCP server:

  1. DHCP Server form
    Disable the internal DHCP server.

  2. Ensure that your DHCP server is programmed with options 60/43 or 124/125. See the Technician's Handbook for further instructions and the DHCP Options form for the required option format and values.

  3. 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 128-135 must be present in the DHCP server. After the sets have booted, options 128-135 may be removed to avoid future conflicts with standard use or other vendors' use of these options.

To delete the lease of an IP address:

  1. DHCP Lease Viewer form (optional)
    Select the IP address that should have the lease removed.

  2. Click Delete.