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Cuda 12000 IP Access Switch CLI-based Administration Guide
Configuring DHCP Relay Options 247
Configuring DHCP Relay Options
The Cuda 12000 allows you to enable and configure DHCP Relay
functionality on each IP interface so that the interface can forward DHCP
requests to a central DHCP server. You must enable DHCP Relay on a select
CMTS interface to dynamically allocate network addresses to the attached
cable modems. You must also enable DHCP agent options for that interface
if you plan to place cable modems, attached CPE hosts and MTA devices on
different networks.
Use the following procedure to configure DHCP Relay on a cable interface.
Task Command
1. Enter configuration mode for the
the interface on which you want
to DHCP Relay.
interface <c/s/i>
2. Enable DHCP Relay on the current
interface. Disabling DHCP Relay
prevents the DHCP server from
assigning IP addresses to hosts on
the interface.
dhcp-relay {enable | disable}
3. Show the available IP interfaces on
the selected physical interface.
You must choose one of these
interfaces as a gateway for cable
modems and CPE hosts (next).
If you have not yet done so, you
must add the IP address of the
gateway (that you want the
devices on this interface to use) to
the interface using the ip address
command.
show ip-address
4. If you plan to specify different
gateways for cable modem, CPE
devices and MTA devices to use,
you must enable DHCP agent
options.
dhcp-relay add-agent-options
enable
Note that this option must be enabled
when using the FastFlow Broadband
Provisioning Manager.
5. Configure the gateway that you
want the CPE/IP hosts on this
interface to use. Select one of the
IP interfaces defined on the
current physical interface.
dhcp-relay cpe-gateway
<gateway address>