Cable Helper-Address - Motorola BSR 64000 Reference Manual

BSR 64000 Command Reference Guide

cable helper-address

The cable helper address function disassembles a DHCP broadcast packet, and
reassembles it into a unicast packet so that the packet can traverse the router and
communicate with the DHCP server.
The cable helper-address command allows the operator to configure the IP address
of the DHCP server that UDP DHCP broadcast packets be forwarded to, as Unicast
packets. The operator can configure different DHCP server IP addresses for cable
modems, hosts and MTAs. In each of the three cases, multiple DHCP server IP
addresses can be configured. The ip dhcp relay information option command must
be configured in order for the BSR 64k000 to determine the source of the broadcast
requests.
Group Access
ISP
Command Mode
Interface Configuration (for cable interface only)
Command Line Usage
cable helper-address <A.B.C.D> {cable-modem | host | mta}
Command Syntax
A.B.C.D
cable-modem
host
mta
2-6
IP destination address. Typically, the IP
address of the DHCP server.
identifies this IP address as the DHCP server
IP address to forward CM UDP DHCP
broadcast packets to
identifies this IP address as the DHCP server
IP address to forward host UDP DHCP
broadcast packets to
identifies this IP address as the DHCP server
IP address to forward MTA UDP DHCP
broadcast packets to