Specifications

How to Obtain IP Parameters for the STB NIP 2311
EIO0000000051 6/2010 75
Deriving an IP Address from a MAC Address
When the STB NIP 2311 requests an IP address from a BootP or DHCP server but
does not receive a response, it uses a default IP address that is derived from its
factory-assigned MAC address. (The MAC address for an STB NIP 2311 is
displayed above the Ethernet ports on the front of the module.)
The 32-bit default IP address contains the values in the last 2 octets of the module's
48-bit factory-assigned MAC address. The default address observes the format
10.10.x.y., where x and y are derived from the last 2 octets of the MAC address.
Convert these 2 octets from hexadecimal to decimal format to understand the
IP address that the module is using for network communications:
NOTE: There are many resources for converting hex numbers to decimal numbers.
We recommend using the Windows calculator in scientific mode.
NOTE: An IP address is derived from the MAC address only when the IP address is
not otherwise provided by:
z a BootP or DHCP server
z a user configured IP setting
Step Action
1 Using a sample MAC address of 00-00-54-10-25-16, ignore the first four pairs
(00-00-54-10).
2 Convert the subsequent pairs (25 and 16) from
hexadecimal to decimal format.
25: (2 x 16) + 5 = 37
16: (1 x 16) + 6 = 22
3 Observe the specified format (10.10.x.y.) to
assemble the derived default IP address.
The default IP address is:
10.10.37.22