Install guide

22 DHCP Snooping Release Note
Software Version 2.7.6
C613-10462-00 REV A
set dhcpsnooping port
Syntax For AT-8600, AT-8700XL, Rapier, and AT-8800
SET DHCPSnooping POrt={port-list|ALL} [MAXLeases=0..100]
[SUBScriberid=subscriber-id]
[TRusted={YES|NO|ON|OFF|True|False}]
For AT-8900 and AT-9900
SET DHCPSnooping POrt={port-list|ALL} [MAXLeases=0..520]
[SUBScriberid=subscriber-id]
[TRusted={YES|NO|ON|OFF|True|False}]
Description This command sets the DHCP snooping details for the specified ports.
Parameter Description
POrt The ports on the device to which the specified settings will be applied.
The port-list is a port number, a range (specified as n-m), or a
comma-separated list of numbers and/or ranges. Port numbers start at
1 and end at m, where m is the highest numbered Ethernet switch port.
Default: no default
MAXLeases The maximum number of DHCP leases that the snooping binding
database holds for the specified ports. Once the limit has been
reached, any further DHCP allocations made to devices on that port are
not stored in the database.
Default: 1
SUBScriberid The subscriber-ID for the port. subscriber-id is a character string, 0 to
50 characters in length. Valid characters are any alphanumeric
characters. If the subscriberid contains spaces, it must be enclosed in
double quotes. Wildcards are not allowed.
If a subscriber-ID is specified, the subscriber-ID sub-option is included in
the DHCP Option 82 field of client DHCP packets forwarded from the
specified port.
The subscriber-ID sub-option is only inserted if DHCP snooping Option
82 has been enabled. If an empty string is specified (subscriberid=""
or subscriberid=) then the subscriber-ID sub-option is not inserted into
client DHCP packets forwarded to a DHCP server. Use this method to
delete a subscriber-ID from a port.
Default: no subscriber-ID
TRusted The trusted status of the port:
Default: no
NO
OFF
False
Un-trusted ports are used to connect to untrusted
elements in a network, such as client devices. DHCP
leases snooped on these ports are eligible to be added
to the DHCP snooping database. ARP security, if
enabled, is also applied to un-trusted ports. The value
no sets the port as untrusted.
YES
ON
True
Trusted ports are used to connect to trusted elements in
a network such as server devices. DHCP leases snooped
on trusted ports are not added to the DHCP snooping
database. Traffic is allowed to flow unchecked on these
ports. The value yes sets the port as trusted.