Motorola BSR 64000 Quick Start Manual page 26

BSR 64000 Quick Start Guide
2. To allow the broadcast DHCP MAC discovery packets to be gathered from a CM
or CPE and redirect the packets to their corresponding DHCP server so that a CM
or CPE can obtain an IP address, use the ip dhcp relay information option
command in Interface Configuration mode, as shown in the following example:
RDN(config-if)# ip dhcp relay information option
3. The default authentication parameters are enabled, but have a null value by
default. Authentication parameters need to be set on the CMTS and the CMs to
ensure security on the HFC network. To activate authentication on the CMTS so
all CMs return a known text string to register with the CMTS for network access,
use the cable shared-secret command in Interface Configuration mode, as shown
in the following example:
Caution: Ensure that the authentication string or hexadecimal key in the CM
configuration file matches the authentication string or hexadecimal key
configured on the CMTS. CMs cannot register with the CMTS if
authentication parameters do not match.
RDN(config-if)#cable shared-secret [n] [<"authentication string"> |
<0xkey>]
where:
Refer to the following documents for additional instructions:
•
BSR 64000 Configuration and Management Guide
•
BSR 64000 Command Reference Guide
16
n is the number of the shared secret.
"authentication string" is an alpha-numeric text string specified in double
quotes.
0xkey is a key specified in hexadecimal notation.