二层Port-security实验

实验一：Port-security

1.SW1和SW2创建VLAN10,R1-R4划分到VLAN10,静态分配IP

2. SW之间的Fa0/24 shutdown;Fa0/23指定成access,并且划分到VLAN10

3.在SW2的Fa0/23接口开启Port-security,指定接口最多可以学习3个MAC地址.观察SW2 Fa0/23的状态

4.实验port-security的三种违规动作

5.实验port-security的三种mac-address的学习方式

6.设置port-security动态学习到的MAC地址的aging time为1min

实验完成,还原配置

R1的配置

R1(config)#int f0/0

R1(config-if)#ip add 10.10.1.1 255.255.255.0

R1(config-if)#no sh

R1(config)#sh int f0/0

  FastEthernet0/0 is up, line protocol is up 

    Hardware is AmdFE, address is 0002.4b1e.efe0 (bia 0002.4b1e.efe0)

R2的配置

R2(config)#int f0/0

R2(config-if)#ip add 10.10.1.2 255.255.255.0

R2(config-if)#no sh

R2(config)#sh int f0/0

  FastEthernet0/0 is up, line protocol is up 

    Hardware is AmdFE, address is 0013.8046.8e40 (bia 0013.8046.8e40)

R3的配置

R3(config)#int f0/0

R3(config-if)#ip add 10.10.1.3 255.255.255.0

R3(config-if)#no sh

R2(config)#sh int f0/0

  FastEthernet0/0 is up, line protocol is up 

    Hardware is AmdFE, address is 000c.ce3a.b7e0 (bia 000c.ce3a.b7e0)

R4的配置

R4(config)#int e0/0

R4(config-if)#ip add 10.10.1.4 255.255.255.0

R4(config-if)#no sh

SW1的配置

SW1(config)# vlan 10

SW1(config)#int range f0/1 - 3

SW1(config-if)#switchport mode access

SW1(config-if)#switchport access vlan 10

SW2的配置

SW2(config)# vlan 10

SW2(config)#int range f0/4

SW2(config-if)#switchport mode access

SW2(config-if)#switchport access vlan 10

SW2(config)# interface fastethernet0/23

SW2(config-if)# switchport mode access

SW2(config-if)# switchport port-security

SW2(config-if)# switchport port-security maximum 3

SW2(config-if)# switchport port-security aging time 1   // 改老化时间1min

SW2(config-if)# switchport port-security aging type {absolute | inactivity}  // 缺省老化时间300s

SW2#sh port-security int f0/23

  Port Security              : Enabled

  Port Status                : Secure-shutdown

  Violation Mode             : Shutdown

  Aging Time                 : 1 mins

  Aging Type                 : Absolute

  SecureStatic Address Aging : Disabled

  Maximum MAC Addresses      : 3

  Total MAC Addresses        : 2

  Configured MAC Addresses   : 2

  Sticky MAC Addresses       : 0

  Last Source Address:Vlan   : 0013.8046.8e40:10

  Security Violation Count   : 1

SW2(config-if)# switchport port-security mac-address sticky

SW2(config-if)# switchport port-security mac-address 0002.4b1e.efe0

SW2(config-if)# switchport port-security mac-address 0013.8046.8e40

  *Mar  1 02:30:49.277: %PM-4-ERR_DISABLE: psecure-violation error detected on Fa0/23, putting Fa0/23 in err-disable state

SW2#sh int f0/23 status err-disabled

  Port          Name       StatusReason         Err-disabled Vlans

  Fa0/23               err-disabled psecure-violation

SW2(config-if)# switchport port-security violation restrict    

                  // 违反行为改成restrict，接口不会关闭，弹出log，多余的帧丢弃

SW2(config-if)#sh  

SW2(config-if)#no sh

  *Mar  1 02:16:28.422: %PORT_SECURITY-2-PSECURE_VIOLATION: Security violation occurred, caused by MAC address 0002.4b1e.efe0 on port FastEthernet0/23.

SW2(config-if)# switchport port-security violation protected   

                 // 违反行为改成protected，接口不会关闭，多余的帧丢弃

SW2(config-if)#sh  

SW2(config-if)#no sh