Motorola SB5101U User's Guide download pdf (Page 11)

SB5101 Cable Modem Overview

MOTOROLA BCS CONFIDENTIAL Page 11 of 34

The Cable Modem has three active interfaces, the HFC, the Ethernet and the USB and each

interface has both a MAC and an IP address associated with it. When operating normally it is the

IP address of the HFC interface that is used for diagnostic access to the modem. However the IP

address associated with the Ethernet interface is always available to the client side network,

unless it has been disabled by management command. This means that a PC on the client side

can access the WEB pages within the modem using the reserved address 192.168.100.1. This is

a non-routed address so it cannot be reached from the Internet (routed) side of the network

The SB5100 family of modems contain an internal DHCP server, which is active until the modem

registers with the CMTS. In the case of a problem that prevents the modem from completing its

registration, the modem can still give an IP address to the client PC to enable diagnostics access.

This address is given with a very short lease (around 10 seconds) so that as soon as the

registration does complete the client PC obtains its proper IP address from the core network

DHCP server.

The WEB interface consists of the following pages:

7 WEB Page Diagnostic Tool.

1 2 ... 6 7 8 9 10 11 12 13 14 15 16 ... 33 34

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Motorola SB5101U User's Guide Page 11