3560做vlan，各vlan间主机ping不通

3560#sh run
Building configuration...

Current configuration : 3372 bytes
!
version 12.2
no service pad
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname 3560
!
enable secret 5 $1$QUaH$5L4Ie3rOAFjAzcNIv1Atl/
enable password cisco
!
no aaa new-model
ip subnet-zero
ip routing
ip dhcp excluded-address 192.168.100.1
ip dhcp excluded-address 192.168.90.1
ip dhcp excluded-address 192.168.80.1
!
ip dhcp pool vlan100
network 192.168.100.0 255.255.255.0
dns-server 192.168.100.254
default-router 192.168.100.1
!
ip dhcp pool vlan90
network 192.168.90.0 255.255.255.0
dns-server 192.168.100.254
default-router 192.168.90.1
!
ip dhcp pool vlan80
network 192.168.80.0 255.255.255.0
dns-server 192.168.100.254
default-router 192.168.80.1
!