TP-Link T2600G Series User Manual

User Guide 558
Configuring DHCP Service DHCP Relay Configuration
Switch(config)#service dhcp relay
Switch(config)#show ip dhcp relay
Switch(config)#ip dhcp relay hops 5
Switch(config)#ip dhcp relay time 10
DHCP relay state: enabled
DHCP relay hops: 5
DHCP relay Time Threshold: 10 seconds
...
Switch(config)#end
Switch#copy running-config startup-config
3.2.2 (Optional) Configuring Option 82
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 relay information option
Enable the Option 82 feature on the port.
Step 4 ip dhcp relay 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 relay 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