182
MES1000, MES2000 Ethernet Switches
no ip dhcp snooping trust
Remove the interface from the trusted interface list, when
DHCP management is used.
ip dhcp information option
format-type circuit-id
circuit_id
circuit-id: 1..63 characters
Define the specific
Сircuit-id
for the interface.
no ip dhcp information
option format-type circuit-
id
Restore the default value.
ip dhcp information option
format-type remote-id
remote_id
remote -id: 1..63 characters
Define the specific
Remote-id
for the interface.
no ip dhcp information
option format-type
remote-id
Restore the default value.
Privileged EXEC mode commands
Command line request in Privileged EXEC mode appears as follows:
console#
Table 5.213 —Privileged EXEC mode commands
Command
Value
Action
ip dhcp snooping binding
mac_address
vlan_id
ip_address
{gigabitethernet
gi_port
|
fastethernet
fa_port
|
port-channel
group
}
expiry
{
seconds
|infinity}
gi_port: (1..3/0/1..28);
fa_port: (1..3/0/1..24)
vlan_id: (1 .. 4094);
group:(1 .. 8);
seconds: (10..4294967295)
Add the client MAC address match to VLAN group and IP
address for the selected interface into the DHCP management
file (database).
This record will be valid for the lifetime, specified in the
command, unless the client sends the renewal request to
DHCP server. Timer will be reset upon the renewal request
receiving from the client (this command is available to
privileged users only).
-
seconds
—record lifetime
-
infinity
—record lifetime is unlimited
no ip dhcp snooping
binding
mac_address
vlan_id
Remove the client MAC address match to VLAN group from
the DHCP management file (database).
clear ip dhcp snooping
database
-
Clear the DHCP management file (database).
EXEC mode commands
Command line request in EXEC mode appears as follows:
console#
Table 5.214 —EXEC mode commands
Command
Value
Action
show ip dhcp information
option
-
Show information on DHCP Option 82 utilization.
show ip dhcp snooping
[gigabitethernet
gi_port
|
fastethernet
fa_port
| port-
channel
group
]
gi_port: (1..3/0/1..28);
fa_port: (1..3/0/1..24);
group: (1..8)
Show DHCP management function configuration.
show ip dhcp snooping
binding
[mac-address
mac_address
]
[ip-address
ip_address
]
[vlan
vlan_id
]
gi_port: (1..3/0/1..28);
fa_port: (1..3/0/1..24);
group: (1..8)
vlan_id: (1..4094)
Show matches from the DHCP management file (database).
