Alcatel-Lucent 7750 SR-OS, Configuration Manual

Page: 485 / 674

Filter Policies
7750 SR OS Router Configuration Guide Page 485
DHCP Filter Commands
action
Syntax action { bypass-host-creation }
action drop
no action
Context config>filter>dhcp-filter>entry
Description
This command specifies the action to take on DHCP host creation when the filter entry matches.
The no form of the command reverts to the default wherein the host creation proceeds as normal
Default no action
Parameters bypass-host-creation — Specifies that the host creation is bypassed.
drop — Specifies the DHCP message is dropped.
option
Syntax option dhcp-option-number { present | absent }
option dhcp-option-number match hex hex-string [ exact ] [ invert-match ]
option dhcp-option-number match string ascii-string [ exact ] [ invert-match ]
no option
Context config>filter>dhcp-filter>entry
Description This command configures the action to take on DHCP host creation when the filter entry matches.
The no form of the command reverts to the default.
Parameters
dhcp-option-number —
Values
0 — 255
present — Specifies that the related DHCP option must be present.
absent — Specifies that the related DHCP option must be absent.
match hex hex-string — The option must (partially) match a specified hex string.
Values
0x0..0xFFFFFFFF...(max 254 hex nibbles)
match string ascii-string — The option must (partially) match a specified ASCII string.
Values
Up to 127 characters
exact — This option requires an exact match of a hex or ascii string.
invert-match — Requires the option not to (partially) match.