D-Link DES-1210-52/ME - Dhcp Server Screening Commands; Config Filter Dhcp_Server

DES-1210-52/ME L2 Metro Ethernet Switch CLI Reference Guide
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DHCP SERVER SCREENING COMMANDS
The DHCP server screenint commands in the Command Line Interface (CLI) are listed (along with the
appropriate parameters) in the following table.
Due to this function allow you not only to restrict all DHCP Server packets but also to receive any
specified DHCP server packet by any specified DHCP client, it is useful when one or more than one
DHCP servers are present on the network and both provide DHCP services to different distinct groups of
clients.
When DHCP Server Screening function is enabled, all DHCP Server packets will be filtere from a specif ic
port. Also, you are allow to create entries for specific Server IP address an d Client MAC address bi
nding by por t-based. Be aware th a tthe DHCP Ser ver Screen ing f uncti n must b e enabled first On ce
all sett ng is do ne, all DHC P Serve packe s wi ll be filtered fro m a speci fic port e cep t those tha meet
th e Se ver IP Ad dres s and Cli ent M AC Addres s binding .
Command
Parameter
config filter
dhcp_server
[add permit server_ip <ipaddr> { client_mac <macaddr>} ports [ <portlist> | all ] |
delete permit server_ip <ipaddr> { client_mac <macaddr> } {ports <portlist> state
[ enable | disable]}
config filter
dhcp_server
illegal_server_log_suppress_duration [<1min | 5min | 30min>]
config filter
dhcp_server log state
[enable | disable]
show filter dhcp_server
show dhcp_server
screening
create filter
dhcpv6_server
permit_entry
<ipv6addr> ports [<portlist> | all]
delete filter
dhcpv6_server
permit_entry
<ipv6addr>
config filter
dhcpv6_server ports
<portlist> state [enable | disable]
config filter
dhcpv6_server log
state
[enable | disable]
show filter
dhcpv6_server
Each command is listed in detail, as follows:
config filter dhcp_server
Purpose
DHCP server packets except those that have been IP/client MAC
bound will be filtered. This command is used to configure the state of
the function for filtering of DHCP server packet and to add/delete the