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通过一个综合实验,掌握DHCP、OSPF及DHCP的基本配置命令。
① PC1在Vlan 10 中,PC2在Vlan 20 中,PC3在Vlan 30 中,PC4 在Vlan 40中;
② R1为PC1和PC2通过DHCP全局池分配IP地址,S2为PC3和PC4通过接口池分配IP地址;
③ 路由器接口IP按照拓扑图进行配置,R1、R2、R3的主机位分别为 1、2、3.
④ 实现不同全网PC间的通信。
令PC1分配在Vlan 10 中,PC2分配在Vlan 20 中,PC3分配在Vlan 30 中,PC4分配在Vlan 40中。
步骤一:使用交换机S1创建Vlan,选择相应端口模式后,将端口划分到Vlan中。
对S1:
[S1]vlan batch 10 20
[S1]int e0/0/1
[S1-Ethernet0/0/1]port link-type trunk
[S1-Ethernet0/0/1]port trunk allow-pass vlan 10 20
[S1-Ethernet0/0/1]int e0/0/2
[S1-Ethernet0/0/2]port link-type access
[S1-Ethernet0/0/2]port default vlan 10
[S1-Ethernet0/0/2]int e 0/0/3
[S1-Ethernet0/0/3]port link-type access
[S1-Ethernet0/0/3]port default vlan 20
步骤二:配置路由器R1的子接口地址并划分到相应的Vlan中。
对R1:
[R1]int g0/0/0.10
[R1-GigabitEthernet0/0/0.10]dot1q termination vid 10
[R1-GigabitEthernet0/0/0.10]ip address 192.168.10.1 24
[R1-GigabitEthernet0/0/0.10]arp broadcast enable
[R1-GigabitEthernet0/0/0.10]int g0/0/0.20
[R1-GigabitEthernet0/0/0.20]dot1q termination vid 20
[R1-GigabitEthernet0/0/0.20]ip address 192.168.20.1 24
[R1-GigabitEthernet0/0/0.20]arp broadcast enable
步骤三:使用交换机S2创建Vlan、Vlanif IP,选择相应端口模式后,将端口划分到Vlan中。
对S2:
[S2]vlan batch 30 40
[S2]int Vlanif 30
[S2-Vlanif30]ip address 192.168.30.1 24
[S2-Vlanif30]int vlanif 40
[S2-Vlanif40]ip address 192.168.40.1 24
[S2]int g0/0/2
[S2-GigabitEthernet0/0/2]port link-type access
[S2-GigabitEthernet0/0/2]port default vlan 30
[S2-GigabitEthernet0/0/2]int g0/0/3
[S2-GigabitEthernet0/0/3]port link-type access
[S2-GigabitEthernet0/0/3]port default vlan 40
使用R1利用全局池对PC1和PC2进行IP地址分配;使用S2利用接口地址池对PC3和PC4进行IP地址分配。
对R1:
[R1]dhcp enable
[R1]ip pool PC1
[R1-ip-pool-PC1]gateway-list 192.168.10.1
[R1-ip-pool-PC1]network 192.168.10.0 mask 24
[R1]ip pool PC2
[R1-ip-pool-PC2]gateway-list 192.168.20.1
[R1-ip-pool-PC2]network 192.168.20.0 mask 24
[R1-ip-pool-PC2]int g 0/0/0.10
[R1-GigabitEthernet0/0/0.10]dhcp select global
[R1]int g0/0/0.20
[R1-GigabitEthernet0/0/0.20]dhcp select global
对S2:
[S2]dhcp enable
[S2]int Vlanif 30
[S2-Vlanif30]dhcp select interface
[S2]int vlanif 40
[S2-Vlanif40]dhcp select interface
经DHCP配置后,PC1-PC4均被成功分配IP地址,其效果如下:
PC1:
PC2:
PC3:
PC4:
按照配置其余接口的IP地址,并使能OSPF,实现全网通信。
对R2:
[R2]int g0/0/0
[R2-GigabitEthernet0/0/0]ip address 12.1.1.2 24
[R2]int g0/0/1
[R2-GigabitEthernet0/0/1]ip address 23.1.1.2 24
[R2]ospf 1
[R2-ospf-1]area 0
[R2-ospf-1-area-0.0.0.0]network 12.1.1.0 0.0.0.255
[R2-ospf-1-area-0.0.0.0]network 23.1.1.0 0.0.0.255
对R1:
[R1]int g0/0/1
[R1-GigabitEthernet0/0/1]ip address 12.1.1.1 24
[R1]ospf 1
[R1-ospf-1]area 0
[R1-ospf-1-area-0.0.0.0]network 12.1.1.0 0.0.0.255
[R1-ospf-1-area-0.0.0.0]network 192.168.10.0 0.0.0.255
[R1-ospf-1-area-0.0.0.0]network 192.168.20.0 0.0.0.255
对S2:
[S2]vlan 99
[S2-vlan99]int vlanif 99
[S2-Vlanif99]ip address 23.1.1.3 24
[S2-Vlanif99]int g0/0/1
[S2-GigabitEthernet0/0/1]port link-type access
[S2-GigabitEthernet0/0/1]port default vlan 99
[S2]ospf 1
[S2-ospf-1]area 0
[S2-ospf-1-area-0.0.0.0]network 23.1.1.0 0.0.0.255
[S2-ospf-1-area-0.0.0.0]network 192.168.30.0 0.0.0.255
[S2-ospf-1-area-0.0.0.0]network 192.168.40.0 0.0.0.255
验证所有PC之间可以相互ping通(这里以PC1为例)
PC>ping 192.168.20.1
Ping 192.168.20.1: 32 data bytes, Press Ctrl_C to break
From 192.168.20.1: bytes=32 seq=1 ttl=255 time=47 ms
From 192.168.20.1: bytes=32 seq=2 ttl=255 time=31 ms
From 192.168.20.1: bytes=32 seq=3 ttl=255 time=31 ms
From 192.168.20.1: bytes=32 seq=4 ttl=255 time=32 ms
From 192.168.20.1: bytes=32 seq=5 ttl=255 time=31 ms
--- 192.168.20.1 ping statistics ---
5 packet(s) transmitted
5 packet(s) received
0.00% packet loss
round-trip min/avg/max = 31/34/47 ms
PC>ping 192.168.30.1
Ping 192.168.30.1: 32 data bytes, Press Ctrl_C to break
From 192.168.30.1: bytes=32 seq=1 ttl=253 time=63 ms
From 192.168.30.1: bytes=32 seq=2 ttl=253 time=46 ms
From 192.168.30.1: bytes=32 seq=3 ttl=253 time=47 ms
From 192.168.30.1: bytes=32 seq=4 ttl=253 time=47 ms
From 192.168.30.1: bytes=32 seq=5 ttl=253 time=47 ms
--- 192.168.30.1 ping statistics ---
5 packet(s) transmitted
5 packet(s) received
0.00% packet loss
round-trip min/avg/max = 46/50/63 ms
PC>ping 192.168.40.1
Ping 192.168.40.1: 32 data bytes, Press Ctrl_C to break
From 192.168.40.1: bytes=32 seq=1 ttl=253 time=46 ms
From 192.168.40.1: bytes=32 seq=2 ttl=253 time=47 ms
From 192.168.40.1: bytes=32 seq=3 ttl=253 time=47 ms
From 192.168.40.1: bytes=32 seq=4 ttl=253 time=47 ms
From 192.168.40.1: bytes=32 seq=5 ttl=253 time=62 ms
--- 192.168.40.1 ping statistics ---
5 packet(s) transmitted
5 packet(s) received
0.00% packet loss
round-trip min/avg/max = 46/49/62 ms
PC之间可以相互ping通,实验成功。
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