BSR 2000 Configuration and Management Guide
Release 1.0
6-18
MGBI
526360-001-00 Rev. B
■
When the cable interface learns about the DHCP lease through a
DHCPLEASEQUERY exchange.
■
When the CM or CPE can continue passing data.
Follow these steps to enable the DHCP lease query feature:
1.
Use the
interface cable
command in Global Configuration mode to enter the
desired cable interface:
MOT
(config-if)#
interface cable
{<
X
/
Y
>}
where:
X
is 0.
Y
is the port number.
2.
Use the
dhcpleasequery authorization on
command in Interface Configuration
mode to enable DHCP lease query messages to be exchanged between the cable
interface and DHCP server:
MOT
(config-if)#
dhcpleasequery authorization on
3.
Use the
show ip traffic
command to monitor DHCP lease query statistics, which
include the number of active, known, unknown, and unimplemented DHCP
packet transmissions.
Setting ARP Parameters
The Address Resolution Protocol (ARP) is used to build a correlation between the
cable network and the connected cable modems (CMs) and customer premises
equipment (CPE) by translating the CM and CPE’s MAC address to a logical IP
address. The collected information is dynamically stored in a table called the ARP
cache.
Follow these steps to set ARP parameters on a cable interface.
1.
Enter the cable interface on which ARP is enabled.
Note:
The IP helper address must be entered for the DHCP Lease Query
function to work. Refer to
Configuring the Cable Helper and IP Helper
for more information on setting the IP helper address on the cable
interface.
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