ADC CUDA 3 - Manual (Page 254)

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252 C HAPTER 12: C ONFIGURING DHCP R ELAY
For example, you can configure the system to match on the DHCP packet to
determine whether the request originated from a cable modem, a CPE, a
MTA device, a specific interface, or a specific MAC address; wildcards can be
used to match portions of a MAC address. In the event of a match, you can
configure the DHCP relay agent to forward the request to a list of up to 32
DHCP servers, or configure the agent to drop the request.
If there are no policies defined, or a DHCP packet does not match any
existing policy, the default policy is used to determine if the packet is
dropped or forwarded to a list of up to 32 DHCP servers. The Cuda 12000
ships with a default policy to deny (drop) DHCP requests that do not match
any other policy. Note that while other DHCP policies are interface-specific,
the default DHCP policy is module-wide—it provides default behavior for all
interfaces on the module. This default policy can be modified but not
deleted.
About BOOTP Policies
BOOTP is a protocol that allows diskless workstations to boot off of a
network server, called a BOOTP server. You can configure the cable interface
to deny (drop) a matching BOOTP request or permit it to be forwarded to a
list of BOOTP servers.