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Administrator’s Handbook
DHCP Option Filtering
Beginning with Firmware Version 7.7, support for DHCP option filtering is provided via the filterset settings.
set dhcp filterset name "string" rule n type [
Specifies a DHCP filterset named string as one of three possible types:
The rule can either specify an option and option contents,
By default a rule is of type
set dhcp filterset name "string" rule n dhcp-option [ 0... 255 ]
Creates a DHCP filterset named string, for example “settopbox,” with rule number n.
Up to two filtersets can be added. Your Gateway supports a single LAN DHCP server instance, but an addi- tional filterset is available for use when bridging, to block undesired DHCP traffic. Up to 8 rules can be cre- ated in the filterset, which are evaluated in order.
set dhcp filterset name "settopbox" rule 1 type
set dhcp filterset name "string" rule n
Assigns a match action to the filterset. If set to pass the
set dhcp filterset name "string" rule n
Assigns an absent action to the filterset. If set to pass the
set dhcp filterset name "string" rule n
Assigns the option group named option_group to match.
set dhcp filterset name "string" rule n match-str "match_string*"
Assigns a match string to the filterset. The