SIP User's Manual 226 Document #: LTRT-65412
MP-11x & MP-124
6.1.8 DHCP Parameters
The Dynamic Host Control Protocol (DHCP) parameters are described in the table below.
Table 6-8: DHCP Parameters
Parameter Description
Web: Enable DHCP
EMS: DHCP Enable
[DHCPEnable]
Determines whether Dynamic Host Control Protocol (DHCP) is
enabled.
 [0] Disable = Disable DHCP support on the device (default).
 [1] Enable = Enable DHCP support on the device.
After the device powers up, it attempts to communicate with a
BootP server. If a BootP server does not respond and DHCP is
enabled, then the device attempts to obtain its IP address and other
networking parameters from the DHCP server.
Notes:
 For this parameter to take effect, a device reset is required.
 After you enable the DHCP server, perform the following
procedure:
1. Enable DHCP and save the configuration (refer to ''Saving
Configuration'' on page 167).
2. Perform a cold reset usi
ng the device's hardware reset button
(soft reset via Web interface doesn't trigger the BootP/DHCP
procedure and this parameter reverts to 'Disable').
 Throughout the DHCP procedure the BootP/TFTP application
must be deactivated, otherwise, the device receives a response
from the BootP server instead of from the DHCP server.
 For additional information on DHCP, refer to the Product
Reference Manual.
 This parameter is a special 'Hidden' parameter. Once defined
and saved in flash memory, its assigned value doesn't revert to
its default even if the parameter doesn't appear in the ini file.
EMS: DHCP Speed Factor
[DHCPSpeedFactor]
Determines the DHCP renewal speed.
 [0] = Disable
 [1] = Normal (default)
 [2] to [10] = Fast
When set to 0, the DHCP lease renewal is disabled. Otherwise, the
renewal time is divided by this factor. Some DHCP-enabled routers
perform better when set to 4.
Note: For this parameter to take effect, a device reset is required.
[EnableDHCPLeaseRenewal]
Enables or disables DHCP renewal support.
 [0] = Disable (default)
 [1] = Enable
This parameter is applicable only if DHCPEnable is set to 0 for
cases where booting up the device using DHCP is not desirable, but
renewing DHCP leasing is. When the device is powered up, it
attempts to communicate with a BootP server. If there is no
response and if DHCP is disabled, the device boots from flash. It
then attempts to communicate with the DHCP server to renew the
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