вторник, 5 октября 2010 г.

Configuring DHCP

Each network device in the network must have an IP address. System administrators ussually give static IP addresses to routers, servers, printers and other network devices, which address must be static. Also you can assign static IP addresses to personal computers in the network, but if the users are always move and the number of users is huge, you should always change their addresses. To automate the process of delivering IP address there is DHCP network protocol, which is need to assign IP addresses automatically from a pool of available IP addresses. Now we will configure a DHCP server on CISCO router:
-excluding ip addresses, that will not be assigned automatically
-Configuring pool
-Configuring the parameters of this pool(default gateway, domain name)

Configuration:
R1>enable
R1#configure terminal
R1(config)#ip dhcp excluded-address 192.168.10.1 192.168.10.9
R1(config)#ip dhcp excluded-address 192.168.10.254
R1(config)#ip dhcp pool LAN-POOL-1
R1(dhcp-config)#network 192.168.10.0 255.255.255.0
R1(dhcp-config)#default-router 192.168.10.1
R1(dhcp-config)#domain-name alexsplanet.com
R1(dhcp-config)#end

Notification:
Excluded addresses: 192.168.10.1 , 192.168.10.9
Pool name: LAN-POOL-1
Network: 192.168.10.0 255.255.255.0
Default gateway: 192.168.10.1
Domain: alexsplanet.com

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