DHCP server ở vlan này cấp IP cho vlan khác

Coresw:

vlan 10,20

interface Ethernet0/0

 switchport trunk encapsulation dot1q

 switchport mode trunk

interface Vlan10

 ip address 192.168.10.1 255.255.255.0

no shutdown

!

interface Vlan20

 ip address 192.168.20.1 255.255.255.0

 ip helper-address 192.168.10.10

no shutdown

Sw_LAN

interface Ethernet0/0 ##nối ra DHCP server

 switchport access vlan 10

 switchport mode access

!

interface Ethernet0/1##nối ra lên CoreSW

 switchport trunk encapsulation dot1q

 switchport mode trunk

!

interface Ethernet0/2##nối ra VPC4

 switchport access vlan 10

 switchport mode access

!

interface Ethernet0/3##nối ra VPC5

 switchport access vlan 20

 switchport mode access

DHCP_Server

interface Ethernet0/0

 ip address 192.168.10.10 255.255.255.0

no shutdown

ip dhcp pool For_vlan_10

 network 192.168.10.0 255.255.255.0

 default-router 192.168.10.1

!

ip dhcp pool For_vlan_20

 network 192.168.20.0 255.255.255.0

 default-router 192.168.20.1

!

Trỏ static route lên gateway trên coresw

ip route 0.0.0.0 0.0.0.0 192.168.1