TP-Link T2600G Series User Manual

Configuring DHCP Service DHCP L2 Relay Configuration
User Guide
567
The following example shows how to enable DHCP L2 Relay globally and for VLAN 2:
Switch#configure
Switch(config)#ip dhcp l2relay
Switch(config)#ip dhcp l2relay vlan 2
Switch(config)#show ip dhcp l2relay
Global Status: Enable
VLAN ID: 2
Switch(config)#end
Switch#copy running-config startup-config
4.2.2 Configuring Option 82 for Ports
Follow these steps to configure Option 82:
Step 1 configure
Enter Global Configuration Mode.
Step 2 interface {
fastEthernet port | range fastEthernet port-list | gigabitEthernet port | range
gigabitEthernet
port-list | ten-gigabitEthernet port | range ten-gigabitEthernet port-list }
Enter Interface Configuration Mode.
Step 3 ip dhcp l2relay information option
Enable the Option 82 feature on the port.
Step 4 ip dhcp l2relay information strategy { keep | replace | drop }
Specify the operation for the switch to take when receiving DHCP packets that include the
Option 82 field.
keep: The switch keeps the Option 82 field of the packets.
replace: The switch replaces the Option 82 field of the packets with a new one. The switch
presets a default circuit ID and remote ID in TLV (Type, Length, and Value) format. You can
also configure the format to include Value only and customize the Value.
drop: The switch discards the packets that include the Option 82 field.
Step 5 ip dhcp l2relay information format { normal | private }
Specify the packet format for the sub-option fields of Option 82.
normal: Indicates the fields consist of three parts: Type, Length, and Value (TLV).
private: Indicates the fields consist of the value only.

TP-Link T2600G Series Specifications

General

Model	T2600G Series
Layer	Layer 2+
Type	Managed
Uplink Ports	4 x Gigabit SFP slots
VLAN	4K VLANs
QoS	8 priority queues
Management	Web-based GUI, CLI, SNMP, RMON
Standards and Protocols	IEEE 802.3i, IEEE 802.3u, IEEE 802.3ab, IEEE 802.3z, IEEE 802.3ad, IEEE 802.3x, IEEE 802.1d, IEEE 802.1s, IEEE 802.1w, IEEE 802.1q, IEEE 802.1p, IEEE 802.3af, IEEE 802.3at
Interface	RJ45
L2 Features	STP, RSTP, MSTP, LACP, IGMP Snooping
L3 Features	Static Routing
Security	802.1X, Port Security, DHCP Snooping, IP Source Guard, DoS Defend, ARP Inspection, SSH, SSL, ACL
MAC Address Table	16K
Jumbo Frame	9KB
Operating Temperature	0°C to 40°C
Storage Temperature	-40°C to 70°C
Operating Humidity	10% to 90% RH non-condensing
Storage Humidity	5% to 90% non-condensing