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SZR1(config)#interfaceGigabitEthernet0/0.3
SZR1(config-if)#encapsulationdot1Q3
SZR1(config-if)#ipaddress192.168.3.254255.255.255.0
SZSW1配置:
Switch#confterminal
Switch(config)#interfaceFastEthernet0/1
Switch(config-if)#switchportmodetrunk
Switch(config)#vlan3
Switch(config)#vlan2
Switch(config)#interfaceF0/3
Switch(config-if)#switchportmodeaccess
Switch(config-if)#switchportaccessvlan2
Switch(config-if)#spanning-treeportfast
Switch(config)#interfaceF0/2
Switch(config-if)#switchportaccessvlan3
在192.168.3.100上面进行测试
NAT
2.1:
使用PAT技术,SZ内网访问58.1.1.2源地址是58.2.2.2
SZR1配置:
SZR1(config)#interfaceg0/1
SZR1(config-if)#ipaddress58.2.2.2255.255.255.248
定义内外网口
interfaceGigabitEthernet0/0.2
ipnatinside
interfaceGigabitEthernet0/0.3
interfaceGigabitEthernet0/1
ipnatoutside
定义内网网段
access-list1permit192.168.3.00.0.0.255
access-list1permit192.168.2.00.0.0.255
配置NAT-PAT
ipnatinsidesourcelist1interfaceGigabitEthernet0/1overload
2.2:
外网访问58.2.2.3映射服务器192.168.2.100
SZR1(config)#ipnatinsidesourcestatic192.168.2.10058.2.2.3
二、需求:
R1与R2之间使用RIPv2,把默认路由重分布进RIP
关闭自动汇总
禁用不需要RIP发送信息的端口
查看:
配置SZR1,启用RIPv2:
routerrip
version2
redistributestatic
passive-interfacedefault
nopassive-interfaceGigabitEthernet0/2
network1.0.0.0
network192.168.2.0
network192.168.3.0
noauto-summary
配置R2,启用RIPv2:
redistributeeigrp23metric3
nopassive-interfaceGigabitEthernet0/1
network2.0.0.0
配置SZR1,重分布静态:
redistributestatic
三、需求:
R2所接网络使用DHCP自动获取地址,R2为DHCP服务器。
R2配置:
R2(config)#ipdhcppoolR2
R2(dhcp-config)#network10.1.1.0255.255.255.0
R2(dhcp-config)#default-router10.1.1.254
R2(dhcp-config)#dns-server8.8.8.8
R2(config)#ipdhcpexcluded-address10.1.1.254
R2(config)#interfaceGigabitEthernet0/2
ipaddress10.1.1.254255.255.255.0
noshutdown
验证:
四、需求:
R2与R3之间使用EIGRP,AS号为23
R2:
routereigrp23
network1.1.23.20.0.0.0
network1.1.32.20.0.0.0
network22.22.22.220.0.0.0
R3:
network1.1.23.30.0.0.0
network1.1.32.30.0.0.0
network3.3.3.30.0.0.0
1:
使用不等价负载,看到两条线路18倍
variance18
―――――――――――――――――――――――――――
PPPPAP双向认证。
R2
R2(config)#ints0/0/0
R2(config-if)#pppauthenticationpap
R2(config-if)#ppppapsent-usernameR2passwordcisco
R3(config)#ints0/0/0
R3(config-if)#pppauthenticationpap
R3(config-if)#ppppapsent-usernameR3PASswordcisco
测试R2与R3S0/0/0是否可以ping通
五、需求:
R3与R4之跑OSPF,R4与SW1,SW2之间跑OSPF
routerospf1
network1.1.34.30.0.0.0area0
R4:
network1.1.34.40.0.0.0area0
network4.4.4.40.0.0.0area0
network1.1.45.40.0.0.0area1
network1.1.46.40.0.0.0area2
SW1:
Iprouting
network5.5.5.50.0.0.0area1
network1.1.45.50.0.0.0area1
network172.16.2.00.0.0.255area1
SW2:
network6.6.6.60.0.0.0area2
network1.1.46.60.0.0.0area2
network172.16.3.00.0.0.255area2
SW1与SW2之间跑TRUNK,channelON模式
SW1:
SW1(config)#Vlan2
SW1(config)#Vlan3
interfaceFastEthernet0/2
channel-group1modeon
interfaceFastEthernet0/3
interfacePort-channel1
switchporttrunkencapsulationdot1q
switchportmodetrunk
SW2:
SW2(config)#Vlan2
SW2(config)#Vlan3
SW1是VLAN2根,SW2是VLAN3根
spanning-treevlan2rootprimary
spanning-treevlan3rootsecondary
spanning-treevlan2rootsecondary
spanning-treevlan3rootprimary
L3与L2这间跑TRUNK,
SW1,SW2与接入换机互连均配置TRUNK
interfaceFX/X
4:
VLAN2,VLAN3使用HSRP
interfaceVlan2
ipaddress172.16.2.252255.255.255.0
standbyversion2
standby2ip172.16.2.254
standby2priority120
standby2preempt
interfaceVlan3
ipaddress172.16.3.252255.255.255.0
standby3ip172.16.3.254
standby3preempt
5:
全局启用portfast功能
SW:
spanning-treeportfastdefault
6:
最后172.16.2.100PING通172.16.3.100
六、需求:
全网环回口能够相互ping通。
R2:
redistributeeigrp23
redistributeripmetric100000102552551500
R3:
redistributeeigrp23subnets
redistributeospf1metric100000102552551500
七、需求:
只允许192.168.2.100telnetR1
R1:
enablepasswordcisco
usernameciscopassword0cisco
access-list2permithost192.168.2.100
linevty04
access-class2in
loginlocal
需求:
不允许172.16.2.100访问192.168.2.100web流量。
其它都放行
access-list100denytcphost172.16.2.100host192.168.2.100eqwww
access-list100permitipanyany
interfaceGigabitEthernet0/2
ipaccess-group100in
备份R1的IOS操作系统到192.168.2.100服务器
配置R1时间为当前时间
R1:
#clockset16:
33:
3015may2016
Showclock
配置R1的日志服务器为192.168.2.100,收集debug信息
loggingtrapdebugging
logging192.168.2.100