ELTEX MES3108 - Page 181

MES3000 Ethernet switch series 181
Table 5.212 —Option 82 field format according to the TR-101 recommendations
Field
Information sent
Circuit ID
device hostname
string appearance: eth <stacked/slotid/interfaceid>:<vlan>
The last byte—number of the port that the device, which sent dhcp request, is connected to
Remote agent ID
Enterprise number – 0089c1
Device MAC address
Table 5.213 —Option 82 field format in custom mode
Field
Information sent
Circuit ID
Length (1 byte)
Circuit ID type
Length (1 byte)
VLAN (2 bytes)
Module number (1 byte)
Port number (1 byte)
Remote agent ID
Length (1 byte)
Remote ID type (1 byte)
Length (1 byte)
Switch MAC address
Ethernet interface configuration mode commands (interface range), port group interface
Command line request in Ethernet interface, port group interface configuration mode appears as
follows:
console(config-if)#
Table 5.214—Ethernet interface configuration mode commands, interface group
Command
Value/Default value
Action
ip dhcp snooping trust
The interface is not trusted
by default.
Add the interface into the trusted interface list, when DHCP
management is used. Trusted interface DHCP traffic is deemed as
safe and not controlled.
no ip dhcp snooping trust
Remove the interface from the trusted interface list, when DHCP
management is used.
ip dhcp snooping limit rate
rate
rate: (1..2048) pps/disabled
Set limits in receiving DHCP packets (packets per second) for the
port.
no ip dhcp snooping limit
rate
Disable limits in receiving DHCP packets for the port
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.