Specifications

Services Reference Manual (MGCP/NCS Version)
Mediatrix 4100
43
Verifying the DHCP-Assigned IP Addresses
You can query the MIB structure to see the IP addresses that have been assigned to the Mediatrix 4100.
Those IP addresses are located under the ipAddressStatus folder in read-only variables.
This assumes that you know the local host IP address. To get the local host IP address of a Mediatrix unit, use
the autodetect feature of the Media5’ Unit Manager Network product. See “Unit Manager Network – Element
Management System” on page xvii for more details.
Static Configuration
Using static IP addresses allows you to bypass the DHCP server or still be able to use the Mediatrix 4100 if
you are not running a DHCP server.
In this case, having one or more configuration source variable set to DHCP slows down the restart process. If
any information is set to come from the DHCP server (for example, SNTP address), the restarting unit waits
for a maximum period of two minutes if the DHCP server cannot be reached, even if most other settings are
set to “static”.
The reason for this delay is that the Mediatrix 4100 cannot function as configured if part of its configuration
(the DHCP information) is unavailable. To avoid this problem, you can set all configuration sources the
Mediatrix 4100 supports to “static”.
 To set all configuration sources to static:
1. In the sysAdminMIB, set the sysAdminCommand variable to setConfigSourcesStatic.
Local Host
The ipAddressConfigLocalHost group allows you to set the IP information the Mediatrix 4100 needs to work
properly. This group is vital to the proper operation of the Mediatrix 4100. If a variable of this group is not
properly set, the Mediatrix 4100 may not be able to restart and be contacted after it has restarted.
 To select the local host configuration source:
1. In the ipAddressConfig folder, locate the localHostSelectConfigSource variable (under the
ipAdressConfigLocalHost group).
2. Set this variable to either static or dhcp.
In the Unit Manager Network Administration Manual, refer to chapter Performing Actions on Mediatrix Units,
section Removing all DHCP Options.
In the Unit Manager Network Administration Manual, refer to chapter Administration Parameters, section IP
Configuration.
Table 24: Local Host Variables
Variable Default Static Value DHCP Source
localHostAddress “192.168.0.1” Yiaddr field
localHostPrimaryDns
a
a. If you do not want to use a DNS, set the variable to 0.
“192.168.0.10” Option 6 (first of the list)
localHostSecondaryDns
a
“192.168.0.10” Option 6 (second of the list)
localHostDefaultRouter
b
b. If you are not using a default router, set the variable to 0.0.0.0. Setting the default router IP
address to “0.0.0.0” may lead to software download problems. See the troubleshooting section
“
Software Upgrade Issues” on page 181 for more details.
“192.168.0.10” Option 3 (first of the list)
localHostSubnetMask “255.255.255.0” Option 1
localHostDhcpServer “” (cannot be set) Siaddr field