解题思路：
1.创建vlan2，将pc1和pc3划入到vlan 2中，并且将接口设置为access
2.在路由器上添加一个子接口放入vlan 2，便于给vlan 2中分配IP地址，可以将交换机1中的0/0/4接口设置为trunk，允许所有通过
3.在sw1和sw2连接的线上设置vlan 2能通过，需要打标签
4.修改pc4/5的PVID，分别划入vlan 4 和vlan 5中，在交换机2/3之间设置vlan 4的打标签，在交换机1/2/3之间设置vlan 5的不打标签，在交换机到pc4/5的接口处需要设置不打标签，在交换机到pc6的接口处设置4和5进入时打上标签
配置：
[sw1]int g0/0/1
[sw1-GigabitEthernet0/0/1]port link-
[sw1-GigabitEthernet0/0/1]port link-t
[sw1-GigabitEthernet0/0/1]port link-type a
[sw1-GigabitEthernet0/0/1]port link-type access
[sw1-GigabitEthernet0/0/1]port de
[sw1-GigabitEthernet0/0/1]port default v
[sw1-GigabitEthernet0/0/1]port default vlan
[sw1]int g 0/0/4
[sw1-GigabitEthernet0/0/4]port link-type trunk
[sw1-GigabitEthernet0/0/4]port trunk allow-pass vlan all
[sw1-GigabitEthernet0/0/4]int g 0/0/3
[sw1-GigabitEthernet0/0/3]port hybrid untagged vlan 2[sw1]int g 0/0/3
[sw1-GigabitEthernet0/0/3]port hybrid untagged vlan 4[sw1]int g 0/0/3
[sw1-GigabitEthernet0/0/3]port hybrid untagged vlan 5
[sw2-GigabitEthernet0/0/1]port link-t
[sw2-GigabitEthernet0/0/1]port link-type ac
[sw2-GigabitEthernet0/0/1]port link-type access
[sw2-GigabitEthernet0/0/1]port de
[sw2-GigabitEthernet0/0/1]port default v
[sw2-GigabitEthernet0/0/1]port default vlan 2
[sw2]int g 0/0/3
[sw2-GigabitEthernet0/0/3]port hybrid untagged vlan 2[sw2]int g 0/0/2
[sw2-GigabitEthernet0/0/2]port hybrid pvid vlan 4
[sw2-GigabitEthernet0/0/2]port hybrid untagged vlan 4
[sw2-GigabitEthernet0/0/2]q
[sw2]int g 0/0/3
[sw2-GigabitEthernet0/0/3]port hybrid untagged vlan 4
[sw2]int g 0/0/4
[sw2-GigabitEthernet0/0/4]port hybrid tagged vlan 4
[sw2]int g 0/0/4
[sw2-GigabitEthernet0/0/4]port hybrid untagged vlan 5
[sw2-GigabitEthernet0/0/4]int g 0/0/3
[sw2-GigabitEthernet0/0/3]port hybrid untagged vlan 5
[sw3]int g 0/0/3
[sw3-GigabitEthernet0/0/3]port hybrid tagged vlan 4
[sw3-GigabitEthernet0/0/3]int g 0/0/1
[sw3-GigabitEthernet0/0/1]port hybrid untagged vlan 4
[sw3-GigabitEthernet0/0/1]int g 0/0/2
[sw3-GigabitEthernet0/0/2]port hybrid tagged vlan 4
[sw3]int g 0/0/1
[sw3-GigabitEthernet0/0/1]port hybrid pvid vlan 5
[sw3-GigabitEthernet0/0/1]port hybrid untagged vlan 5
[sw3-GigabitEthernet0/0/1]int g 0/0/3
[sw3-GigabitEthernet0/0/3]port hybrid untagged vlan 5
[sw3-GigabitEthernet0/0/3]int g 0/0/2
[sw3-GigabitEthernet0/0/2]port hybrid tagged vlan 5
[r1]int g 0/0/0.1
[r1-GigabitEthernet0/0/0.1]ip add 192.168.1.1 24
[r1-GigabitEthernet0/0/0.1]dot1q termination vid 2
[r1-GigabitEthernet0/0/0.1]arp broadcast enable
[r1-GigabitEthernet0/0/0.1]q
[r1]int g 0/0/0
[r1-GigabitEthernet0/0/0]ip add 192.168.2.1 24
[r1]dhcp enable
[r1]ip pool v2
[r1-ip-pool-v2]network 192.168.1.0 mask 24
[r1-ip-pool-v2]gateway-list 192.168.1.1
[r1-ip-pool-v2]dns-list 114.114.114.114 8.8.8.8
[r1-ip-pool-v2]q
[r1]ip pool v1
[r1-ip-pool-v1]network 192.168.2.0 mask 24
[r1-ip-pool-v1]gateway-list 192.168.2.1
[r1-ip-pool-v1]dns-list 114.114.114.114 8.8.8.8
[r1]int g 0/0/0.1
[r1-GigabitEthernet0/0/0.1]dhcp select global
[r1-GigabitEthernet0/0/0.1]q
[r1]int g 0/0/0
[r1-GigabitEthernet0/0/0]dhcp select global
