System information

BSR 64000 Configuration and Management Guide
6-40
Adding a Static Arp Entry to a Cable Bundle Interface
To optionally add a static arp entry to the cable bundle interface, use the arp cable
bundle cable command in Global Configuration mode as shown below:
MOT(config)#arp <A.B.C.D> <H.H.H> [arpa | snap] cablebundle cable <x>/<y>
where:
A.B.C.D is the IP address of the ARP entry.
H.H.H is the 48-bit MAC address of the ARP entry.
The following example shows how to add a static arp entry that has an IP address of
10.1.1.10 and MAC address of 0000.0000.0010 MAC in arpa format on cable bundle
interface cable 3/0:
MOT(config)#arp 10.1.1.10 0000.0000.0010 arpa cablebundle cable 3/0
Subneting DHCP Clients on the Cable Interface
The DHCP-relay agent, which is the router (SRM) between the cable interface and
DHCP server, monitors DHCP CPE host requests for the presence of the Vendor Class
Identifier (VCI) also known as “DHCP Relay Option 60”. Vendors define a VCI to
optionally identify the DHCP client vendor type and configuration information. For
example, if a VCI identifies a DHCP client as a Multimedia Terminal Adapter (MTA)
device, the DHCP server can put all MTA devices that are on a cable interface into the
same subnet.
The host and mta VCI options are used to configure a CPE host or MTA gateway IP
address (giaddr) for the cable interface. During the DHCP process, the DHCP relay
agent requests an IP address in a particular subnet by inserting the cable interface
giaddr into the DHCP requests from CMs, hosts, and MTAs. The primary IP address
is always inserted in CM DHCP requests. The ip dhcp relay information option
command must be enabled to allow the BSR to determine what type of device
originated the DHCP request if one or more secondary giaddr IP addresses are defined
for a secondary CM host or MTA device. The primary IP address for the cable
interface is inserted into DHCP requests by default.
Follow these steps to enable a VCI on the cable interface:
1. Enter the desired cable interface.