Tp-Link T2600G-28MPS (TL-SG3424P) [225/379] Dhcp relay

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Step Operation Note

reserved

addresses

the Excluded IP Address, configure reserved IP addresses for the

fixed computers in each VLAN.

Manually binding

IP addresses

Optional. On page Routing→ DHCP Server→Manual Binding,

bind specified ip addresses to the specific clients.

 Configure Access Switch

Step

Operation

Note

•

Enable DHCP

Relay.

Required. On the Routing→DHCP Server→Global Config page,

enable the DHCP Server function, and the DHCP Relay function

will be enabled at the same time.

•

Configure Option

82 support.

Optional. On the Routing→DHCP Relay→Global Config page,

configure the Option 82 parameters.

•

Configure DHCP

Server.

Required. On the Routing→DHCP Relay→DHCP Server page,

specify the DHCP Server with the IP address of the central switch.

10.5 DHCP Relay



Application Environment of DHCP Relay

In DHCP model, DHCP clients broadcast its DHCP request, so the DHCP sever and clients must

be on the same subnet, which require the DHCP server is available in every subnet. It is costly

to build so much DHCP Server. DHCP relay agent solves the problem. Via a relay agent, DHCP

clients request an IP address from the DHCP server in another subnet, and DHCP clients in

different subnets can share the same DHCP server in the internet.



Details of DHCP Relay

A typical application of the switch working at DHCP Relay function is shown below. It can be

altered to meet the network requirement.

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