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1、四臺(tái)主機(jī)配置地址
PC1：
PC1> ip 192.168.100.100 192.168.100.1
Checking for duplicate address...
PC1 : 192.168.100.100 255.255.255.0 gateway 192.168.100.1
PC2：
PC2> ip 192.168.10.10 192.168.10.1
Checking for duplicate address...
PC1 : 192.168.10.10 255.255.255.0 gateway 192.168.10.1
PC3：
PC3> ip 192.168.10.20 192.168.10.1
Checking for duplicate address...
PC1 : 192.168.10.20 255.255.255.0 gateway 192.168.10.1
PC4：
PC4> ip 192.168.20.20 192.168.20.1
Checking for duplicate address...
PC1 : 192.168.20.20 255.255.255.0 gateway 192.168.20.12、在交換機(jī)上配置兩個(gè)vlan域，f1/1和f1/2放在vlan 10中，f1/3放在vlan 20中，f1/0配置trunk鏈路，最后要關(guān)閉路由功能。
sw#conf t
sw(config)#vlan 10,20
sw(config-vlan)#ex
sw(config)#do show vlan-sw b
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 f1/3
sw(config-if)#sw mo acc
sw(config-if)#sw acc vlan 20
sw(config-if)#ex
sw(config)#do show vlan-sw b
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
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
sw(config-if)#sw mo t
sw(config-if)#sw t en dot
sw(config-if)#ex
sw(config)#no ip routing //關(guān)閉路由功能3、在三層交換機(jī)f1/1端口關(guān)閉交換端口，配置網(wǎng)關(guān)地址，f1/0端口配置trunk鏈路；在vlan 10、20中放入網(wǎng)關(guān)地址。
sw-3#conf t
sw-3(config)#int f1/1
sw-3(config-if)#no switchport
sw-3(config-if)#ip add 192.168.100.1 255.255.255.0
sw-3(config-if)#no shut
sw-3(config-if)#do show ip int b
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
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
sw-3(config-if)#ex
sw-3(config)#vlan 10,20
sw-3(config-vlan)#int vlan 10
sw-3(config-if)#ip add 192.168.10.1 255.255.255.0
sw-3(config-if)#no shut
sw-3(config-if)#ex
sw-3(config)#int vlan 20
sw-3(config-if)#ip add 192.168.20.1 255.255.255.0
sw-3(config-if)#no shut
sw-3(config-if)#ex
sw-3(config)#int f1/0
sw-3(config-if)#sw mo t
sw-3(config-if)#sw t en dot
sw-3(config-if)#do show ip route
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
C 192.168.100.0/24 is directly connected, FastEthernet1/14、此時(shí)四臺(tái)主機(jī)能互相ping通，即全網(wǎng)互通
PC2> ping 192.168.100.100
192.168.100.100 icmp_seq=1 timeout
84 bytes from 192.168.100.100 icmp_seq=2 ttl=63 time=35.971 ms
84 bytes from 192.168.100.100 icmp_seq=3 ttl=63 time=41.517 ms
84 bytes from 192.168.100.100 icmp_seq=4 ttl=63 time=31.738 ms
84 bytes from 192.168.100.100 icmp_seq=5 ttl=63 time=35.188 ms
PC2>ping 192.168.10.20
84 bytes from 192.168.10.20 icmp_seq=1 ttl=64 time=0.505 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
192.168.20.20 icmp_seq=1 timeout
84 bytes from 192.168.20.20 icmp_seq=2 ttl=63 time=31.229 ms
84 bytes from 192.168.20.20 icmp_seq=3 ttl=63 time=37.597 ms
84 bytes from 192.168.20.20 icmp_seq=4 ttl=63 time=31.007 ms
84 bytes from 192.168.20.20 icmp_seq=5 ttl=63 time=40.123 ms5、在三層交換機(jī)上創(chuàng)建命名控制列表并定義其中的規(guī)則
sw-3(config)#ip access-list standard kgc
sw-3(config-std-nacl)#permit host 192.168.10.10
sw-3(config-std-nacl)#deny 192.168.10.0 0.0.0.255
sw-3(config-std-nacl)#permit any
sw-3(config-std-nacl)#ex
sw-3(config)#do show access-list
Standard IP access list kgc
10 permit 192.168.10.10
20 deny 192.168.10.0, wildcard bits 0.0.0.255
30 permit any
sw-3(config)#int f1/1
sw-3(config-if)#ip access-group kgc out //策略應(yīng)用在網(wǎng)關(guān)6、結(jié)果測(cè)試
vlan 10中的PC3被禁止訪問(wèn)PC1
PC3> ping 192.168.100.100
*192.168.10.1 icmp_seq=1 ttl=255 time=30.919 ms (ICMP type:3, code:13, Communication administratively prohibited)
*192.168.10.1 icmp_seq=2 ttl=255 time=16.133 ms (ICMP type:3, code:13, Communication administratively prohibited)
*192.168.10.1 icmp_seq=3 ttl=255 time=31.012 ms (ICMP type:3, code:13, Communication administratively prohibited)
*192.168.10.1 icmp_seq=4 ttl=255 time=22.354 ms (ICMP type:3, code:13, Communication administratively prohibited)
*192.168.10.1 icmp_seq=5 ttl=255 time=15.630 ms (ICMP type:3, code:13, Communication administratively prohibited)vlan 10中的PC2被允許訪問(wèn)PC1
PC2> 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=35.353 ms
84 bytes from 192.168.100.100 icmp_seq=4 ttl=63 time=31.321 ms
84 bytes from 192.168.100.100 icmp_seq=5 ttl=63 time=31.239 ms其它網(wǎng)段的主機(jī)（20網(wǎng)段）被允許訪問(wèn)PC1
PC4> ping 192.168.100.100
84 bytes from 192.168.100.100 icmp_seq=1 ttl=63 time=32.766 ms
84 bytes from 192.168.100.100 icmp_seq=2 ttl=63 time=31.240 ms
84 bytes from 192.168.100.100 icmp_seq=3 ttl=63 time=31.244 ms
84 bytes from 192.168.100.100 icmp_seq=4 ttl=63 time=31.329 ms
84 bytes from 192.168.100.100 icmp_seq=5 ttl=63 time=31.067 ms實(shí)驗(yàn)成功，謝謝大家的鼓勵(lì)和支持！
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