123[RouterA-dhcp-pool-1] domain-name aabbcc.com[RouterA-dhcp-pool-1] dns-list 10.1.1.2[RouterA-dhcp-pool-1] gateway-list 10.1.1.126[RouterA-dhcp-pool-1] nbns-list 10.1.1.4[RouterA-dhcp-pool-1] quit# Configure DHCP address pool 2 to assign IP addresses and other configuration parametersto clients on subnet 10.1.1.128/25.[RouterA] dhcp server ip-pool 2[RouterA-dhcp-pool-2] network 10.1.1.128 mask 255.255.255.128[RouterA-dhcp-pool-2] expired day 5[RouterA-dhcp-pool-2] domain-name aabbcc.com[RouterA-dhcp-pool-2] dns-list 10.1.1.2[RouterA-dhcp-pool-2] gateway-list 10.1.1.254[RouterA-dhcp-pool-2] quitVerifying the configuration# Verify that clients on subnets 10.1.1.0/25 and 10.1.1.128/25 can obtain correct IP addresses andall other network parameters from Router A. (Details not shown.)# On the DHCP server, display the IP addresses assigned to the clients.[RouterA] display dhcp server ip-in-useIP address Client identifier/ Lease expiration TypeHardware address10.1.1.3 0031-3865-392e-6262- Jan 14 22:25:03 2015 Auto(C)3363-2e30-3230-352d-4745-302f-3010.1.1.5 0031-fe65-4203-7e02- Jan 14 22:25:03 2015 Auto(C)3063-5b30-3230-4702-620e-712f-5e10.1.1.130 3030-3030-2e30-3030- Jan 9 10:45:11 2015 Auto(C)662e-3030-3033-2d45-7568-6572-1e10.1.1.131 3030-0020-fe02-3020- Jan 9 10:45:11 2015 Auto(C)7052-0201-2013-1e020201-9068-2310.1.1.132 2020-1220-1102-3021- Jan 9 10:45:11 2015 Auto(C)7e52-0211-2025-34020201-9068-9a10.1.1.133 2021-d012-0202-4221- Jan 9 10:45:11 2015 Auto(C)8852-0203-2022-55e03921-0104-31Example: Configuring DHCP user classNetwork configurationAs shown in Figure 34, the DHCP relay agent (Router A) forwards DHCP packets between DHCPclients and the DHCP server (Router B). Enable Router A to handle Option 82 so that it can addOption 82 in DHCP requests and then forward them to the DHCP server.Configure the address allocation scheme as follows:
