TP-Link T2600G Series User Manual

User Guide 540
Configuring DHCP Service DHCP
Figure 1-3 Application Scenario of DHCP VLAN Relay
DHCP Server
DHCP Clients
VLAN 10
192.168.2.0/24
DHCP Clients
VLAN 20
192.168.2.0/24
DHCP Relay
Default Agent Interface:
192.168.2.1/24
Note:
•
If the VLAN already has an IP address, the switch will use the IP address of the VLAN as the
relay agent IP address. The default relay agent IP address will not take effect.
•
DHCP VLAN Relay will not work on routed ports or port channel interfaces, because they are
not associated with any particular VLAN.
DHCP L2 Relay
Unlike DHCP relay, DHCP L2 Relay is used in the situation that the DHCP server and clients
are in the same VLAN. In DHCP L2 Relay, in addition to normally assigning IP addresses to
clients from the DHCP server, the switch can inform the DHCP server of some specified
information, such as the location information, of clients by inserting an Option 82 payload
to DHCP request packets before forwarding them to the DHCP server. This allows the
DHCP server which supports Option 82 can set the distribution policy of IP addresses and
other parameters, providing a more flexible way to distribute IP addresses.
Figure 1-4 Application Scenario of DHCP L2 Relay
DHCP Server
DHCP Clients
VLAN 1
DHCP Clients
Switch
DHCP L2 Relay

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