华为路由器：通过三层交换机实现全网互通及访问外网

实验拓扑

拓扑分析

• Access交换机配置直接可以当作二层交换机，只需要划分vlan10、vlan20两个vlan即可。

• SW2 g0/0/22 不需要配IP地址，配置成trunk类型。并且创建vlan10 vlan20 ，分别给这两个vlan配置虚接口IP：Vlanif10 192.168.10.254 24，Vlanif20 192.168.20.254 24

• SW2 g0/0/24 不需要配IP地址，只能把G0/0/24加入到vlan99，vlan99配置IP地址接口类型Access，同样需要给vlan99配置虚接口：Vlanif99 192.168.99.1，用于和路由器(R1)的g0/0/0通讯。

配置步骤

PC配置IP、子掩码、网关
SW1上二层交换机上划分VLAN，并把相应的PC接口加入
SW1、SW2之间的两个端口配置Trunk
SW2上面配置创建VLAN10/20/99，配置VTP，并把24口加入到vlan99，最后加一条静态路由指向网关。
R1配置接口信息，添加静态路由
R2配置接口信息，添加静态路由

SW1 Access接入交换机配置

Access交换机我们可以当他是二层交换机

The device is running!

<Huawei>
<Huawei>sys
Enter system view, return user view with Ctrl+Z.
[Huawei]sys Access
[Access]undo info-center enable    #关闭消息提示，这个很烦人
Info: Information center is disabled.
[Access]vlan batch 10 20
Info: This operation may take a few seconds. Please wait for a moment...done.

[Access]int g0/0/1
[Access-GigabitEthernet0/0/1]	
[Access-GigabitEthernet0/0/1]port link-type access 
[Access-GigabitEthernet0/0/1]port default vlan 10
[Access-GigabitEthernet0/0/1]int g0/0/2
[Access-GigabitEthernet0/0/2]port link-type access
[Access-GigabitEthernet0/0/2]port default vlan 20
[Access-GigabitEthernet0/0/2]q

[Access]int g0/0/22
[Access-GigabitEthernet0/0/22]port link-type trunk   #配置22为trunk
[Access-GigabitEthernet0/0/22]port trunk allow-pass vlan 10 20    #允许vlan10和20通过
[Access-GigabitEthernet0/0/22]q
[Access] User interface con0 is available

SW2三层交换机的配置

The device is running!

<Huawei>
<Huawei>sys
Enter system view, return user view with Ctrl+Z.
[Huawei]sys sw2
[sw2]
[sw2]undo info-center enable    #关闭消息提示
Info: Information center is disabled.

[sw2]
[sw2]vlan batch 10 20
Info: This operation may take a few seconds. Please wait for a moment...done.
[sw2]int g0/0/22
[sw2-GigabitEthernet0/0/22]port link-type trunk
[sw2-GigabitEthernet0/0/22]port tr all vlan 10 20
[sw2-GigabitEthernet0/0/22]port trunk allow-pass  vlan 10 20
[sw2-GigabitEthernet0/0/22]q

[sw2]interface Vlanif 10                 #进入vlan10
[sw2-Vlanif10]ip add 192.168.10.254 24   #给vlan10虚接口配置IP 192.168.10.254
[sw2-Vlanif10]q

[sw2]interface Vlanif 20
[sw2-Vlanif20]ip add 192.168.20.254 24  #给vlan20虚接口配置IP 192.168.20.254
[sw2-Vlanif20]q


[sw2]vlan 99                            #创建vlan99
[sw2-vlan99]q
[sw2]int g0/0/24	
[sw2-GigabitEthernet0/0/24]port link-type access     #g0/0/24需要配成access
[sw2-GigabitEthernet0/0/24]port default vlan 99      #g0/0/24加入vlan99
[sw2-GigabitEthernet0/0/24]q

[sw2]interface Vlanif 99
[sw2-Vlanif99]ip add 192.168.99.1 24    #给Vlan99虚接口配置IP 192.168.99.1
[sw2-Vlanif99]q
[sw2]ip route-static 0.0.0.0 0.0.0.0 192.168.99.2   #加入静态路由只想网关





Please Press ENTER.

R1路由器配置

The device is running!
<Huawei>sys
Enter system view, return user view with Ctrl+Z.
[Huawei]sys R1
[R1]undo info-center enable
Info: Information center is disabled.

[R1]int g0/0/0
[R1-GigabitEthernet0/0/0]ip add 192.168.99.2 24
[R1-GigabitEthernet0/0/0]q
[R1]ip route-static 192.168.10.0 24 192.168.99.1   #加入静态路由
[R1]ip route-static 192.168.20.0 24 192.168.99.1   #加入静态路由
[R1]ip route-static 192.168.30.0 24 10.10.30.2     #加入静态路由


[R1]display ip routing-table                       #查看路由表
Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------
Routing Tables: Public
         Destinations : 13       Routes : 13       

Destination/Mask    Proto   Pre  Cost      Flags NextHop         Interface

     10.10.30.0/24  Direct  0    0           D   10.10.30.1      GigabitEthernet0/0/1
     10.10.30.1/32  Direct  0    0           D   127.0.0.1       GigabitEthernet0/0/1
   10.10.30.255/32  Direct  0    0           D   127.0.0.1       GigabitEthernet0/0/1
      127.0.0.0/8   Direct  0    0           D   127.0.0.1       InLoopBack0
      127.0.0.1/32  Direct  0    0           D   127.0.0.1       InLoopBack0
127.255.255.255/32  Direct  0    0           D   127.0.0.1       InLoopBack0
 `192.168.10.0/24`  Static  60   0          RD   192.168.99.1    GigabitEthernet0/0/0   
 `192.168.20.0/24`  Static  60   0          RD   192.168.99.1    GigabitEthernet0/0/0  
 `192.168.30.0/24`  Static  60   0          RD   10.10.30.2      GigabitEthernet0/0/1
   #上面这3条是我们加的
   192.168.99.0/24  Direct  0    0           D   192.168.99.2    GigabitEthernet0/0/0
   192.168.99.2/32  Direct  0    0           D   127.0.0.1       GigabitEthernet0/0/0
 192.168.99.255/32  Direct  0    0           D   127.0.0.1       GigabitEthernet0/0/0
255.255.255.255/32  Direct  0    0           D   127.0.0.1       InLoopBack0

[R1]

R2路由器配置

<Huawei>sys
Enter system view, return user view with Ctrl+Z.
[Huawei]sys R2
[R2]
[R2]int g0/0/0
[R2-GigabitEthernet0/0/0]ip add 10.10.30.2 24
[R2-GigabitEthernet0/0/0]q
[R2]ip route-static 0.0.0.0 0.0.0.0 10.10.30.1
[R2]
[R2]int g0/0/1
[R2-GigabitEthernet0/0/1]ip add 192.168.30.254 24
[R2-GigabitEthernet0/0/1]

验证结果

用PC1ping PC3

PC>ping 192.168.30.1

Ping 192.168.30.1: 32 data bytes, Press Ctrl_C to break
Request timeout!
From 192.168.30.1: bytes=32 seq=2 ttl=125 time=63 ms
From 192.168.30.1: bytes=32 seq=3 ttl=125 time=47 ms
From 192.168.30.1: bytes=32 seq=4 ttl=125 time=62 ms
From 192.168.30.1: bytes=32 seq=5 ttl=125 time=47 ms

--- 192.168.30.1 ping statistics ---
  5 packet(s) transmitted
  4 packet(s) received
  20.00% packet loss
  round-trip min/avg/max = 0/54/63 ms

用PC2ping PC3

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=125 time=62 ms
From 192.168.30.1: bytes=32 seq=2 ttl=125 time=47 ms
From 192.168.30.1: bytes=32 seq=3 ttl=125 time=62 ms
From 192.168.30.1: bytes=32 seq=4 ttl=125 time=47 ms
From 192.168.30.1: bytes=32 seq=5 ttl=125 time=63 ms

--- 192.168.30.1 ping statistics ---
  5 packet(s) transmitted
  5 packet(s) received
  0.00% packet loss
  round-trip min/avg/max = 47/56/63 ms

PC>