CISCO Lab # 2: Configure DHCP on Router

 

Tasks:

Configure DHCP on Router1 as follows:
1) Excluded address range 10.1.1.1 to 10.1.1.100
2) Pool name = pc
3) Network 10.1.1.0/24
4) Default Gateway = Router 1
5) DNS Server = Router 1
6) Test that PC can ping loopback of Router 1
 

Download Solved Lab

Solution:

We need to power on the Router as a prerequisite.

Then we need to perform following commands to implement the tasks

We will first look at the IP Addresses which are configured at the Router interfaces

R1>
R1>en
R1#show ip interface brief
Interface              IP-Address      OK? Method Status                Protocol
GigabitEthernet0/0/0   10.1.1.254      YES NVRAM  up                    up
GigabitEthernet0/0/1   unassigned      YES NVRAM  administratively down down
Loopback0              1.1.1.1         YES NVRAM  up                    up
Vlan1                  unassigned      YES NVRAM  administratively down down
 

Next we need to exclude a range of IP Addresses from the DHCP server and then define an IP Pool named "pc" with network 10.1.1.0/24 with 10.1.1.254 as default gateway and DNS server.

R1#
R1#config t
Enter configuration commands, one per line.  End with CNTL/Z.
R1(config)#ip dhcp excluded-address 10.1.1.1 10.1.1.100
R1(config)#ip dhcp pool pc
R1(dhcp-config)#network 10.1.1.0 255.255.255.0
R1(dhcp-config)#default-router 10.1.1.254
R1(dhcp-config)#dns-server 10.1.1.254
R1(dhcp-config)#end
R1#
%SYS-5-CONFIG_I: Configured from console by console

Next we need to verify if the DHCP pool is working

R1#show ip dhcp binding
IP address       Client-ID/              Lease expiration        Type
                 Hardware address
10.1.1.101       0060.2F7A.9C7A           --                     Automatic

We see that IP Address 10.1.1.101 is assigned to the PC having MAC Address of 0060.2F7A.9C7A

Next we will test the loopback address to see if the PC can ping 1.1.1.1 which is configured at Loopback interface of the Router

 
We see that PC can successfully ping the loop-back IP Address at Router.




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