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How to configure DHCP Service on Cisco Router


The Dynamic Host Configuration Protocol (DHCP) is a network protocol used to configure devices that are connected to a network so they can communicate on that network using the Internet Protocol (IP). The protocol is implemented in a client-server model, in which DHCP clients request configuration data, such as an IP address, a default gateway, and one or more DNS server addresses from a DHCP server.


This tutorial will walk you through configuring a Cisco Router to server as a DHCP server for client computers.


Commands:

R1>enable
R1#conf t
R1(config)#service dhcp                                     >   Enables DHCP
R1(config)#ip dhcp pool mydhcp                                >   Create a DHCP pool
R1(dhcp-config)#network 192.168.100.0 255.255.255.0             >    The network used to get IP address from Router
R1(dhcp-config)#default-router 192.168.100.254                   >   Default gateway of Hosts
R1(dhcp-config)#dns-server 192.168.100.250                    >   DNS Server of Hosts
R1(dhcp-config)#exit
R1(config)#
R1(config)#ip dhcp excluded-address 192.168.100.1 192.168.100.50                 >   The address that we want to excluded from DHCP pool. These address never been used by Router to lease.
R1(config)#exit
R1#

Below the Configuration in exhibit.

image



In Host, type the command ipconfig /release in order to release the old IP address. And type ipconfig /renew to get the IP address from Cisco Router

HostA-2013-09-21-20-54-38

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Comments

  1. UnknownOctober 4, 2013 at 7:02 AM

    Nice explanation, one question though when you exclude ip addresses do you define the range or the actual IPs?
    in the example above are both IPs 192.168.100.1 and 192.168.100.50 excluded or all the 50 IPs in that range?

    ReplyDelete
  2. ArunOctober 5, 2013 at 10:49 AM

    Look at the command prompt, its the first pc to get its ip address > 192.168.1.51.

    ReplyDelete
  3. RyanDecember 2, 2019 at 12:59 AM

    Commands+video guide is the best in this case.

    ReplyDelete
  4. tompiccolo June 25, 2020 at 8:34 PM

    While some might argue that their solid carbide construction is superfluous, they are durable and deliver beautiful results. speed wifi router

    ReplyDelete
  5. RouterAugust 16, 2020 at 5:14 PM

    Is it true that you are utilizing your router to its full capacity? In the event that you've been a standard internet client, you may have eventually gone over a numerical portrayal like 192.168.1.1. This article clarifies what 192.168.1.1 is and fills in as a fundamental guide on the most proficient method to tackle it while accessing the internet.

    You can consider it an online address. Every gadget associated with the internet should have a remarkable address, which will empower successful trade of information between the gadget and the remainder of the computerized world. This is like the one of a kind 10.0.0.0.1 address/email/phone number that we each need to trade correspondence.

    On the internet, this address is known as the 192.168.10.1 Internet Protocol (IP) address. In a run of the mill home network, the router will allocate an IP address to every gadget associated with it. It has its own IP as well (router IP). A specific scope of IP addresses has been held for private networks, for example, homes, Local Area Networks (LAN)/Wireless Area Networks (WAN) within a venture, etc. These IP addresses can't be alloted to an openly accessible site (internet locales). These extents are:

    ReplyDelete

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