TP-Link T2600G Series User Manual

Configuring DHCP Service DHCP L2 Relay Configuration
User Guide
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4.1.2 Configuring Option 82 for Ports
Choose the menu L3 FEATURES > DHCP Service > DHCP L2 Relay > Port Config to load
the following page.
Figure 4-2 Configure Option 82 for Ports
Follow these steps to enable DHCP Relay and configure Option 82:
1) Select one or more ports to configure Option 82.
Option 82
Support
Select whether to enable Option 82 or not.
Enable it if you want to prevent DHCP client requests from untrusted sources, or
assign different IP addresses to clients in different groups from the same DHCP
server.
Option 82 Policy Select 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.
Format 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