Command Examples - ZyXEL Communications IES4005M User Manual

Chapter 15 DHCP
Table 89 DHCP Commands Summary (continued)
COMMAND
show dhcp vlan <vid>
dhcp l2agent snooping max-lease
overflow-mode deny-new-
lease|deny-oldest-lease
interface dsl <slot/portlist>
dhcp l2agent snooping ip-mac-
binding
no dhcp l2agent snooping ip-
mac-binding
dhcp l2agent snooping max-
lease <lease-count>
show interface dsl <slot/
portlist> dhcp l2agent snooping
ip-mac-binding
show interface dsl <slot/
portlist> dhcp l2agent snooping
max-lease
no interface dsl <slot/portlist>
dhcp l2agent snooping database
show interface dsl <slot/
portlist> dhcp l2agent snooping
database
show interface dsl <slot/
portlist> dhcp l2agent snooping
statistics
clear interface dsl <slot/
portlist> dhcp l2agent snooping
statistics

15.1 Command Examples

You do not want the IES handle and record any DHCP packets on VLAN 100. This example shows
how to enable transparent DHCP on VLAN 100. Before this, you have to make sure DHCP L2 Agent
is disabled on the VLAN. You can use the show dhcp vlan * command to check this. If DHCP L2
130
DESCRIPTION
Displays the DHCP L2 Agent settings (on the specified VLAN).
vid: 1-4093 or * for all VLANs
Configures the DHCP snooping database overflow handling mode.
: a new lease is denied
deny-new-lease
: the oldest lease is removed
deny-oldest-lease
Enters the sub-command mode for configuring the specified DSL
ports.
Enables IP-MAC binding on the specified DSL ports.
Disables DHCP snooping IP-MAC binding on the specified DSL
ports.
Configures the DHCP Snooping database max lease count for the
specified DSL ports.
lease-count: 1-32
Displays the DHCP snooping IP to MAC binding on the specified
DSL ports.
Displays the DHCP snooping maximum lease and overflow mode
on the specified DSL ports.
Flushes the DHCP snooping database on the specified DSL ports.
Displays the DHCP snooping database for the specified DSL ports.
Displays DHCP snooping packet statistics for the specified DSL
ports.
Clears the DHCP snooping packet statistics for the specified DSL
ports.
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IES4005M User's Guide