ROUTER#show run
Building configuration...

Current configuration : 1970 bytes
!
version 12.4
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname CME
!
boot-start-marker
boot-end-marker
!
!
no aaa new-model
ip cef
!
!
no ip dhcp use vrf connected
ip dhcp excluded-address 172.20.0.1 172.20.0.20
ip dhcp excluded-address 172.20.0.65 172.20.0.69
ip dhcp excluded-address 172.20.0.129 172.20.0.130
!
ip dhcp pool VLAN100
   network 172.20.0.0 255.255.255.192
   default-router 172.20.0.1
   dns-server 8.8.8.8
!
ip dhcp pool VLAN200
   network 172.20.0.64 255.255.255.192
   dns-server 8.8.8.8
   default-router 172.20.0.65
!
ip dhcp pool VLAN300
   network 172.20.0.128 255.255.255.192
   default-router 172.20.0.129
   dns-server 8.8.8.8
!
!
ip auth-proxy max-nodata-conns 3
ip admission max-nodata-conns 3
ip dhcp-client update dns
!
!
!
no spanning-tree vlan 100
!
!
!
interface FastEthernet0/0
 no ip address
 no shutdown
 speed auto
!
interface FastEthernet0/0.100
 encapsulation dot1Q 100
 ip address 172.20.0.1 255.255.255.192
 ip nat inside
 ip virtual-reassembly
!
interface FastEthernet0/0.200
 encapsulation dot1Q 200
 ip address 172.20.0.65 255.255.255.192
 ip nat inside
 ip virtual-reassembly
!
interface FastEthernet0/0.300
 encapsulation dot1Q 300
 ip address 172.20.0.129 255.255.255.192
 ip nat inside
 ip virtual-reassembly
!
interface FastEthernet0/0.1000
 encapsulation dot1Q 1000
 ip address dhcp
 ip nat outside
 ip virtual-reassembly
 ipv6 traffic-filter ipv6-fw in
!
interface Serial0/0
 no ip address
 shutdown
 no fair-queue
!
router eigrp 20
 network 172.16.0.0
 network 172.20.0.0 0.0.0.63
 network 172.20.0.64 0.0.0.63
 network 172.20.0.128 0.0.0.63
 no auto-summary
!
ip forward-protocol nd
!
!
no ip http server
no ip http secure-server
ip nat inside source list 1 interface FastEthernet0/0.1000 overload
!
access-list 1 permit 172.20.0.0 0.0.0.255
!
ipv6 access-list ipv6-fw
 deny ipv6 any any
!
control-plane
!
!
line con 0
 logging synchronous
line aux 0
line vty 0 4
 login
!
end


SWITCH#sho run
Building configuration...

Current configuration : 2566 bytes
!
version 12.1
no service pad
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname CORE
!
!
ip subnet-zero
no ip finger
!
!
no spanning-tree vlan 100
!
!
interface FastEthernet0/1
 switchport access vlan 100
 switchport mode access
 spanning-tree portfast
!
interface FastEthernet0/2
 switchport access vlan 100
 switchport mode access
 spanning-tree portfast
!
interface FastEthernet0/3
 switchport access vlan 100
 switchport mode access
 spanning-tree portfast
!
interface FastEthernet0/4
 switchport access vlan 100
 switchport mode access
 spanning-tree portfast
!
interface FastEthernet0/5
 switchport access vlan 100
 switchport mode access
 spanning-tree portfast
!
interface FastEthernet0/6
 switchport access vlan 100
 switchport mode access
 spanning-tree portfast
!
interface FastEthernet0/7
 switchport access vlan 100
 switchport mode access
 spanning-tree portfast
!
interface FastEthernet0/8
 switchport access vlan 100
 switchport mode access
 spanning-tree portfast
!
interface FastEthernet0/9
 switchport access vlan 200
 switchport mode access
 spanning-tree portfast
!
interface FastEthernet0/10
 switchport access vlan 200
 switchport mode access
 spanning-tree portfast
!
interface FastEthernet0/11
 switchport access vlan 200
 switchport mode access
 spanning-tree portfast
!
interface FastEthernet0/12
 switchport access vlan 200
 switchport mode access
 spanning-tree portfast
!
interface FastEthernet0/13
 switchport access vlan 300
 switchport mode access
 spanning-tree portfast
!
interface FastEthernet0/14
 switchport access vlan 300
 switchport mode access
 spanning-tree portfast
!
interface FastEthernet0/15
 switchport access vlan 300
 switchport mode access
 spanning-tree portfast
!
interface FastEthernet0/16
 switchport access vlan 300
 switchport mode access
 spanning-tree portfast
!
interface FastEthernet0/17
 switchport access vlan 100
 switchport mode access
!
interface FastEthernet0/18
 switchport mode trunk
!
interface FastEthernet0/19
!
interface FastEthernet0/20
!
interface FastEthernet0/21
!
interface FastEthernet0/22
!
interface FastEthernet0/23
 switchport mode trunk
!
interface FastEthernet0/24
 switchport access vlan 1000
 switchport mode access
 spanning-tree portfast
!
interface Vlan1
 no ip address
 no ip route-cache
 shutdown
!
ip http server
!
line con 0
 transport input all
 logging synchronous
line vty 5 15
!
!
end