Task 1: Configure the SW1 to act as a DHCP client on FastEthernet0/1 interface to get its IP address from the DHCP server.

The SW1 is connected to the DHCP server on interface FastEthernet0/1.

SW1#configure terminal
SW1(config)#ip routing
SW1(config)#int f0/1
SW1(config-if)#no switchport
SW1(config-if)#ip address dhcp
SW1(config-if)#end

ip address dhcp configures the switch interface as a DHCP client to dynamically obtain an IP address from a DHCP server.

ip routing enables Layer 3 functionality on the switch, allowing it to route traffic between subnets or VLANs.

no switchport Converts the specified interface (FastEthernet0/1) from a Layer 2 switchport to a Layer 3 routed port, enabling it to participate in Layer 3 routing.

Verification

SW1 should have an IP address of 192.168.1.2 on FastEthernet0/1.

SW1#show ip interface brief

Interface              IP-Address      OK? Method Status                Protocol

FastEthernet0/1        192.168.1.2     YES DHCP   up                    up

---output omitted---

Vlan10                 192.168.2.1     YES manual up                    up

Task 2: Configure the SW1 switch to act as a DHCP relay agent to forward DHCP requests from PC1 to the DHCP server.

SW1 is connected to PC1 via a VLAN 10 access port. From the output of the show ip interface brief command, we can see that VLAN 10 already has an IP address assigned. Therefore, we don’t need to assign it manually. However, if it does not have an IP address, we will need to configure it first.

SW1(config)#int vlan 10
SW1(config-if)#ip helper-address 192.168.1.1
SW1(config-if)#exit

ip helper-address 192.168.1.1 configures the switch to forward DHCP requests from VLAN 10 to the DHCP server at 192.168.1.1.

Task 3: Configure PC1 to obtain its IP address dynamically via DHCP.

PC1 should have a link-local address configured by default. We need to renew the IP configuration on PC1.

PC1:\>ipconfig /renew

IP Address.................: 192.168.2.3

Subnet Mask................: 255.255.255.0

Default Gateway............: 192.168.2.1

DNS Server.................: 8.8.8.8

This command is used on a PC to request a new IP address from a DHCP server. It forces the client to release its current IP address (if any) and renew it by communicating with the DHCP server. The new IP address and related network configuration details (subnet mask, default gateway, DNS server) are obtained and applied to the system.

Task 4: A ping must be successful from PC1 to the DHCP server.

PC1:\> ping 192.168.1.1
Pinging 192.168.1.1 with 32 bytes of data:
Request timed out.
Reply from 192.168.1.1: bytes=32 time=26ms TTL=115
Reply from 192.168.1.1: bytes=32 time=24ms TTL=115
Reply from 192.168.1.1: bytes=32 time=25ms TTL=115

Now exit configuration mode and save the configuration.

SW1(config)#end
SW1#write memory