Specifications

Chapter 3 - IP Address and Network Configuration Services
42
Mediatrix 4100
There may be some confusion between the three available IP address formats. In particular, it is important to
understand that prefixing “0” to the values makes them interpreted as octal values. For instance, the string
192.168.0.009 is not valid because 009 is interpreted in octal, and the digit “9” does not exist in that base.
Provisioning Source
The Mediatrix 4100 IP information may come from a variety of sources.
Services
This section describes the services the Mediatrix 4100 uses and their settings. Most of these services require
that you define their IP address and, if required, port number. See “DHCP Server Configuration” on page 52
for more details.
Configuration variables of network parameters are defined in the MIB structure under the ipAddressConfig
folder. This folder is subdivided into groups, one for each service that requires a network parameter.
Configuration Source
The configuration your Mediatrix 4100 uses can either be:
 dynamically assigned (network parameters assigned by a DHCP Server)
 static (network parameters you manually defined in the MIB structure)
DHCP Configuration
Using DHCP-assigned IP addresses ensures that the Mediatrix 4100 receives the addresses that are stored
in the DHCP server. This assumes that you have previously set the DHCP server with the proper values. See
“DHCP Server Configuration” on page 52 for more details.
The Mediatrix 4100 can receive numerous information from the DHCP server, including the vendor or site
specific information. Note that the Mediatrix 4100 does not make a DHCP request in the following cases:
 If all MIB variables xxSelectConfigSource are set to static at start-up.
 If one of the MIB variables xxSelectConfigSource is set to dhcp after the initialization process.
Table 23: IP Address Provisioning Sources
Source Description
Static You manually enter the value and it remains the same every time the
Mediatrix 4100 restarts. If you do not specify a value, a default static
value applies.
DHCP The value is obtained at start-time by querying a DHCP server and using
standard DHCP fields or options. See RFC 2131 section 2 and RFC
2132.
DHCP – Site specific options The value is obtained at start-time by querying a DHCP server and using
a non-standard option specific to the site where the Mediatrix 4100 is
used. See “
Site Specific Options” on page 54 for more details.
DHCP – Vendor specific options The value is obtained at start-time by querying a DHCP server and using
a standard option that is reserved for storing vendor specific information.
See “
Vendor Specific Options” on page 53 for more details.
DNS The value is obtained at start-time by querying a DNS server.
None The value is not provisioned. The application provides an acceptable
default.