ACL访问控制列表配置实例
Posted
tags:
篇首语：本文由小常识网(cha138.com)小编为大家整理，主要介绍了ACL访问控制列表配置实例相关的知识，希望对你有一定的参考价值。
命名访问控制列表- 需求
- 允许vlan10中PC2主机可以访问PC1
- 拒绝vlan10中其他主机访问PC1
- 允许其他网段中的主机访问PC1
1、在GNS 3中构建拓扑实验，并在拓扑区域标出主机接口、IP地址、需求、网关等信息，如图所示：
2、开启全部设备，并先在交换设中配置vlan信息
sw#conf t //进入接口模式
Enter configuration commands, one per line. End with CNTL/Z.
sw(config)#vlan 10,20 //添加vlan
sw(config-vlan)#ex //退出vlan接口
sw(config)#do show vlan-sw b //查看vlan
VLAN Name Status Ports
---- -------------------------------- --------- -------------------------------
1 default active Fa1/0, Fa1/1, Fa1/2, Fa1/3
Fa1/4, Fa1/5, Fa1/6, Fa1/7
Fa1/8, Fa1/9, Fa1/10, Fa1/11
Fa1/12, Fa1/13, Fa1/14, Fa1/15
10 VLAN0010 active
20 VLAN0020 active
1002 fddi-default act/unsup
1003 token-ring-default act/unsup
1004 fddinet-default act/unsup
1005 trnet-default act/unsup
sw(config)#int range fa1/1 -2 //进入f1/1、f1/2接口模式
sw(config-if-range)#sw mo acc
sw(config-if-range)#sw access vlan 10 //将接口添加到vlan10中
sw(config-if-range)#ex
sw(config)#do show vlan-sw b //查看接口是否加入vlan
VLAN Name Status Ports
---- -------------------------------- --------- -------------------------------
1 default active Fa1/0, Fa1/3, Fa1/4, Fa1/5
Fa1/6, Fa1/7, Fa1/8, Fa1/9
Fa1/10, Fa1/11, Fa1/12, Fa1/13
Fa1/14, Fa1/15
10 VLAN0010 active Fa1/1, Fa1/2 //成功添加
20 VLAN0020 active
1002 fddi-default act/unsup
1003 token-ring-default act/unsup
1004 fddinet-default act/unsup
1005 trnet-default act/unsup
sw(config)#int f1/3 //进入f1/3接口
sw(config-if)#sw mo acc
sw(config-if)#sw acc vlan 20 //将接口加入vlan20
sw(config-if)#ex
sw(config)#do show vlan-sw b //查看
VLAN Name Status Ports
---- -------------------------------- --------- -------------------------------
1 default active Fa1/0, Fa1/4, Fa1/5, Fa1/6
Fa1/7, Fa1/8, Fa1/9, Fa1/10
Fa1/11, Fa1/12, Fa1/13, Fa1/14
Fa1/15
10 VLAN0010 active Fa1/1, Fa1/2
20 VLAN0020 active Fa1/3 //成功添加
1002 fddi-default act/unsup
1003 token-ring-default act/unsup
1004 fddinet-default act/unsup
1005 trnet-default act/unsup
sw(config)#int f1/0 //进入f1/0接口
sw(config-if)#sw mo t //做trunk链路
sw(config-if)#
*Mar 1 00:06:52.483: %DTP-5-TRUNKPORTON: Port Fa1/0 has become dot1q trunk
sw(config-if)#sw t encapsulation dot1q //封装trunk协议
sw(config-if)#ex
sw(config)#no ip routing //关闭路由功能3、进入三层交换设备，添加接口IP地址，
sw-3#conf t //进入全局模式
Enter configuration commands, one per line. End with CNTL/Z.
sw-3(config)#int f1/1 //进入f1/1接口
sw-3(config-if)#no switchport //关闭交换功能
*Mar 1 00:11:19.435: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet1/1, changed state to up
sw-3(config-if)#ip add 192.168.100.1 255.255.255.0 //添加IP网关地址
sw-3(config-if)#no shut //开启接口
sw-3(config-if)#do show ip int b //查看
Interface IP-Address OK? Method Status Protocol
FastEthernet0/0 unassigned YES unset administratively down down
FastEthernet0/1 unassigned YES unset administratively down down
FastEthernet1/0 unassigned YES unset up up
FastEthernet1/1 192.168.100.1 YES manual up up //成功添加IP网关地址
FastEthernet1/2 unassigned YES unset up down
FastEthernet1/3 unassigned YES unset up down
FastEthernet1/4 unassigned YES unset up down
FastEthernet1/5 unassigned YES unset up down
FastEthernet1/6 unassigned YES unset up down
FastEthernet1/7 unassigned YES unset up down
FastEthernet1/8 unassigned YES unset up down
sw-3(config-if)#ex
sw-3(config)#vlan 10,20 //添加vlan
sw-3(config-vlan)#int vlan 10 //进入vlan 10
sw-3(config-if)#ip add 192.168.10.1 255.255.255.0 //添加IP地址
sw-3(config-if)#no shut //开启接口
sw-3(config-if)#ex
sw-3(config)#int vlan 20 //进入vlan 20
sw-3(config-if)#ip add 192.168.20.1 255.255.255.0 //添加IP地址
sw-3(config-if)#no shut //开启接口
sw-3(config-if)#ex
sw-3(config)#do show ip int b //查看
Interface IP-Address OK? Method Status Protocol
FastEthernet0/0 unassigned YES unset administratively down down
FastEthernet0/1 unassigned YES unset administratively down down
FastEthernet1/0 unassigned YES unset up up
FastEthernet1/1 192.168.100.1 YES manual up up //成功添加IP网关地址
FastEthernet1/2 unassigned YES unset up down
FastEthernet1/3 unassigned YES unset up down
FastEthernet1/4 unassigned YES unset up down
FastEthernet1/5 unassigned YES unset up down
FastEthernet1/6 unassigned YES unset up down
FastEthernet1/7 unassigned YES unset up down
FastEthernet1/8 unassigned YES unset up down
FastEthernet1/9 unassigned YES unset up down
FastEthernet1/10 unassigned YES unset up down
FastEthernet1/11 unassigned YES unset up down
FastEthernet1/12 unassigned YES unset up down
FastEthernet1/13 unassigned YES unset up down
FastEthernet1/14 unassigned YES unset up down
FastEthernet1/15 unassigned YES unset up down
Vlan1 unassigned YES unset up up
Vlan10 192.168.10.1 YES manual up down //网关添加成功
Vlan20 192.168.20.1 YES manual up down
sw-3(config)#int f1/0 //进入f1/0接口
sw-3(config-if)#sw mo t //制作trunk链路
*Mar 1 00:16:07.979: %DTP-5-TRUNKPORTON: Port Fa1/0 has become dot1q trunk
*Mar 1 00:16:08.483: %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan10, changed state to up
*Mar 1 00:16:08.483: %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan20, changed state to up
sw-3(config-if)#sw t encapsulation dot1q //封装trunk协议
sw-3(config-if)#do show ip rout //查看路由表
Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route
Gateway of last resort is not set
C 192.168.10.0/24 is directly connected, Vlan10
C 192.168.20.0/24 is directly connected, Vlan20 //成功添加路由表
C 192.168.100.0/24 is directly connected, FastEthernet1/14、在PC机上分别配置IP地址，并测试四台PC机的互通性
PC1> ip 192.168.100.100 192.168.100.1
Checking for duplicate address...
PC1 : 192.168.100.100 255.255.255.0 gateway 192.168.100.1PC2> ip 192.168.10.10 192.168.10.1
Checking for duplicate address...
PC1 : 192.168.10.10 255.255.255.0 gateway 192.168.10.1PC3> ip 192.168.10.20 192.168.10.1
Checking for duplicate address...
PC1 : 192.168.10.20 255.255.255.0 gateway 192.168.10.1PC4> ip 192.168.20.20 192.168.20.1
Checking for duplicate address...
PC1 : 192.168.20.20 255.255.255.0 gateway 192.168.20.1PC2> ping 192.168.100.100
192.168.100.100 icmp_seq=1 timeout
192.168.100.100 icmp_seq=2 timeout
84 bytes from 192.168.100.100 icmp_seq=3 ttl=63 time=21.556 ms
84 bytes from 192.168.100.100 icmp_seq=4 ttl=63 time=15.601 ms
84 bytes from 192.168.100.100 icmp_seq=5 ttl=63 time=22.945 ms
PC2> ping 192.168.10.20
84 bytes from 192.168.10.20 icmp_seq=1 ttl=64 time=0.000 ms
84 bytes from 192.168.10.20 icmp_seq=2 ttl=64 time=0.000 ms
84 bytes from 192.168.10.20 icmp_seq=3 ttl=64 time=0.000 ms
84 bytes from 192.168.10.20 icmp_seq=4 ttl=64 time=0.000 ms
84 bytes from 192.168.10.20 icmp_seq=5 ttl=64 time=0.000 ms
PC2> ping 192.168.20.20
84 bytes from 192.168.20.20 icmp_seq=1 ttl=63 time=16.954 ms
84 bytes from 192.168.20.20 icmp_seq=2 ttl=63 time=20.944 ms
84 bytes from 192.168.20.20 icmp_seq=3 ttl=63 time=23.487 ms
84 bytes from 192.168.20.20 icmp_seq=4 ttl=63 time=13.997 ms
84 bytes from 192.168.20.20 icmp_seq=5 ttl=63 time=18.998 ms5、在三层交换设备中配置命令访问控制列表
sw-3(config-if)#ex
sw-3(config)#ip access-list standard kgc //配置命名访问控制列表
sw-3(config-std-nacl)#permit host 192.168.10.10 //允许PC2主机访问
sw-3(config-std-nacl)#deny 192.168.10.0 0.0.0.255 //拒接10.0网段访问
sw-3(config-std-nacl)#permit any //允许所有网段访问
sw-3(config)#do show access-lists //查看列表
Standard IP access list kgc
10 permit 192.168.10.10
20 deny 192.168.10.0, wildcard bits 0.0.0.255 //成功添加
30 permit any
sw-3(config)#int f1/1 //进入f1/1接口
sw-3(config-if)#ip access-group kgc out //在出口位置应用列表6、测试配置的命名访问控制列表是否生效
PC2> ping 192.168.100.100 //使用PC2测试与PC1通信，正常通信
192.168.100.100 icmp_seq=1 timeout
192.168.100.100 icmp_seq=2 timeout
84 bytes from 192.168.100.100 icmp_seq=3 ttl=63 time=15.957 ms
84 bytes from 192.168.100.100 icmp_seq=4 ttl=63 time=17.958 ms
84 bytes from 192.168.100.100 icmp_seq=5 ttl=63 time=18.953 msPC4> ping 192.168.100.100 //使用使用PC4测试与PC1通信，正常通信
84 bytes from 192.168.100.100 icmp_seq=1 ttl=63 time=19.021 ms
84 bytes from 192.168.100.100 icmp_seq=2 ttl=63 time=24.934 ms
84 bytes from 192.168.100.100 icmp_seq=3 ttl=63 time=15.957 ms
84 bytes from 192.168.100.100 icmp_seq=4 ttl=63 time=14.960 ms
84 bytes from 192.168.100.100 icmp_seq=5 ttl=63 time=18.023 ms
PC3> ping 192.168.100.100 //使用使用PC3测试与PC1通信时显示拒绝访问，配置成功
*192.168.10.1 icmp_seq=1 ttl=255 time=8.033 ms (ICMP type:3, code:13, Communication administratively prohibited)
*192.168.10.1 icmp_seq=2 ttl=255 time=12.965 ms (ICMP type:3, code:13, Communication administratively prohibited)
*192.168.10.1 icmp_seq=3 ttl=255 time=11.004 ms (ICMP type:3, code:13, Communication administratively prohibited)
*192.168.10.1 icmp_seq=4 ttl=255 time=10.998 ms (ICMP type:3, code:13, Communication administratively prohibited)
*192.168.10.1 icmp_seq=5 ttl=255 time=12.966 ms (ICMP type:3, code:13, Communication administratively prohibited)7、通过序列号添加列表条目，使PC3也可以与PC1通信
sw-3(config-if)#ex
sw-3(config)#ip access-list standard kgc //配置命名访问控制列表
sw-3(config-std-nacl)#12 permit host 192.168.10.20 //添加条目号为12的条目，允许PC3访问
sw-3(config-std-nacl)#ex
sw-3(config)#do show access-lists //查看列表信息
Standard IP access list kgc
10 permit 192.168.10.10 (5 matches)
12 permit 192.168.10.20 //成添加
20 deny 192.168.10.0, wildcard bits 0.0.0.255 (10 matches)
30 permit any (5 matches)8、测试是否配置成功
PC3> ping 192.168.100.100 //使用使用PC3测试与PC1通信，正常通信
192.168.100.100 icmp_seq=1 timeout
192.168.100.100 icmp_seq=2 timeout
84 bytes from 192.168.100.100 icmp_seq=3 ttl=63 time=22.997 ms
84 bytes from 192.168.100.100 icmp_seq=4 ttl=63 time=21.008 ms
84 bytes from 192.168.100.100 icmp_seq=5 ttl=63 time=15.957 ms
9、删除添加的条目
sw-3(config)#ip access-list standard kgc //配置命名访问控制列表
sw-3(config-std-nacl)#no 12 //删除列表中12的条目
sw-3(config-std-nacl)#ex
sw-3(config)#do show access-lists //查看列表
Standard IP access list kgc
10 permit 192.168.10.10 (5 matches)
20 deny 192.168.10.0, wildcard bits 0.0.0.255 (10 matches)
30 permit any (5 matches) //成功删除10、测试结果
PC3> ping 192.168.100.100
*192.168.10.1 icmp_seq=1 ttl=255 time=8.973 ms (ICMP type:3, code:13, Communication administratively prohibited)
*192.168.10.1 icmp_seq=2 ttl=255 time=4.981 ms (ICMP type:3, code:13, Communication administratively prohibited)
*192.168.10.1 icmp_seq=3 ttl=255 time=10.971 ms (ICMP type:3, code:13, Communication administratively prohibited)
*192.168.10.1 icmp_seq=4 ttl=255 time=8.552 ms (ICMP type:3, code:13, Communication administratively prohibited)
*192.168.10.1 icmp_seq=5 ttl=255 time=2.993 ms (ICMP type:3, code:13, Communication administratively prohibited)以上是关于ACL访问控制列表配置实例的主要内容，如果未能解决你的问题，请参考以下文章