Motorola Netopia 3342N - Manual (Page 252)

Administrator’s Handbook
252
DHCP Option Filtering
Beginning with Firmware Version 7.7, suppor t for DHCP option filtering is provided via the filterset settings.
set dhcp filterset name " string " rule n type [ dhcp-option | hw-address |
requested-option ]
Specifies a DHCP filterset named string as one of three possible types:
The rule can either specify an option and option contents, dhcp-option; a client hardware address range,
hw-address; or an option the client is requesting, requested-option. For hw-address, you will need to
enter
start-address and end-address values; for the others a dhcp-option parameter must be set.
By default a rule is of type dhcp-option, for backwards compatibility.
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 suppor ts a single LAN DHCP ser ver 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.
dhcp-option determines which DHCP option should be compared. A typical value would be to use option
60 data for comparison, but allowing this value to be configured permits more flexibility.
set dhcp filterset name "settopbox" rule 1 type dhcp-option
set dhcp filterset name " string " rule n match-action
[ pass | discard | continue ]
Assigns a match action to the filterset. If set to pass the match-pool address is shown.
set dhcp filterset name " string " rule n absent-action
[ pass | discard | continue ]
Assigns an absent action to the filterset. If set to pass the absent-pool address is hidden.
set dhcp filterset name " string " rule n match-option-group " option_group *"
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 match-str string will be compared against the DHCP DISCOVER
option data. This string can contain multiple “*” and “?” wildcard substitutions.