Task – DHCP Snooping

• Configure R1 to act as a DHCP Server for VLAN 123
  • Use IP pool 10.123.123.0/24
  • The first five host addresses should never be assigned
• Enable DHCP Snooping in VLAN 123
• Don’t allow more than 5 DHCP packets per second on client ports
• Use R2 and R3 as DHCP clients

Solutions

R1
ip dhcp excluded-address 10.123.123.1 10.123.123.5
ip dhcp pool VLAN123
 network 10.123.123.0 255.255.255.0

SW1
ip dhcp snooping vlan 123
no ip dhcp snooping information option
ip dhcp snooping
!
interface g0/1
 ip dhcp snooping trust
interface g0/2
 ip dhcp snooping limit rate 5

SW2
ip dhcp snooping vlan 123
no ip dhcp snooping information option
ip dhcp snooping
!
interface g1/0
 ip dhcp snooping trust
interface g0/3
 ip dhcp snooping limit rate 5

R2, R3:
interface g0/0
 ip address dhcp