TP-Link T1600G-28PS Jetstream Smart Switches User Guide - Page 494
Configuration Scheme, Before configuring DHCP Interface Relay, create two DHCP IP pools on the DHCP
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Configuring DHCP Service Configuration Examples the switch. The Marketing department is connected to port 1/0/1 of the relay agent, and the R&D department is connected to port 1/0/2 of the relay agent. Figure 5-5 Network Topology for DHCP Interface Relay DHCP Server 192.168.0.59/24 VLAN 10 192.168.2.1/24 Routed Port (Gi1/0/5) 192.168.0.1 VLAN 20 192.168.3.1/24 Marketing Dept. 192.168.2.0/24 Gi1/0/1 Gi1/0/2 Switch DHCP Relay Agent 5.2.2 Configuration Scheme R&D Dept. 192.168.3.0/24 In the given situation, the DHCP server and the computers are isolated in different network segments, so the DHCP requests from the clients cannot be directly forwarded to the DHCP server. To assign IP addresses in two different subnets to two departments respectively, we recommend you to configure DHCP Interface Relay to satisfy the requirement. The overview of the configurations are as follows: 1) Before configuring DHCP Interface Relay, create two DHCP IP pools on the DHCP server for the two departments, respectively. Then create static routes or enable dynamic routing protocol like RIP on the DHCP server to make sure the DHCP server can reach the clients in the two VLANs. 2) Configure 802.1Q VLAN on the DHCP relay agent. Add all computers in the marketing department to VLAN 10, and add all computers in the R&D department to VLAN 20. 3) Create VLAN interfaces for VLAN 10 and VLAN 20 on the DHCP relay agent. 4) Configure DHCP Interface Relay on the DHCP relay agent. Enable DHCP Relay globally, and specify the DHCP server address for each VLAN. In this example, the DHCP server is demonstrated with T1600G-52TS and the DHCP relay agent is demonstrated with T1600G-28TS. This section provides configuration procedures in two ways: using the GUI and using the CLI. User Guide 469
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