三层交换机怎么配置才能使不同网段的PC访问服务器

Posted 2023-03-31

三层交换机接路由再接服务器，但不和路由端口在同一网段的PC无法访问服务器，谁知道怎么配置三层交换机？或者留下Q号帮我解决，思科模拟器而已
连接如下：PC--二层交换机--3层交换机--路由--服务器
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因特网
能写出配置吗？3层交换机上的！

不同网段的PC访问服务器需要在三层交换机中添加默认路由即可。
具体方法（以华为为例，其它品牌步骤都是一样，命令稍有不同而已）：
1、用TELNET或CONSOLE线连接三层交换机。
2、输入用户名密码登陆。
3、使用命令行：
system-view
ip route-static 0.0.0.0 0.0.0.0 192.168.1.1（具体以服务器IP为准）
quit
save
这样不同网段的PC就能访问服务器了。 参考技术A 在三层交换机上做路由表，把不是和路由同一网段的IP都指向路由那个网段。 参考技术B 你把三层上建要通信的网段VLAN，并给VLAN配置上IP，打开三层交换机的三层功能，（ip routing）。和下面二层接的交换机的端口打TRUNK，二层上配置相应的VLAN ，PC也配置相应的网段，网关，这样就行了 参考技术C 3层交换机和路由之间要起路由协议。因为已经是跨网段的了。二层上如果有多个VLAN的话，那在和三层相连的地方要起Trunk。不起也行，但是二层和三层一定要是同一个VLAN，并且你的PC要在这个VLAN 参考技术D 自己查书

华为三层交换机如何实现不同Vlan不同网段之间的互通

实验目标：如图可以使PC1、PC2、PC3、PC4、PC5、server1、之间可以互相ping通

实验步骤：1.配置PC1/PC2/PC3/PC4/PC5的IP，子网掩码，网关如图：

2.配置Switch1如下：
<Huawei>undo terminal monitor
Info: Current terminal monitor is off.
<Huawei>system-view
Enter system view, return user view with Ctrl+Z.
[Huawei]sysname SW1
[SW1]vlan 10
[SW1-vlan10]vlan 20
[SW1-vlan20]vlan 30
[SW1-vlan30]q
[SW1-GigabitEthernet0/0/1]port link-type access
[SW1-GigabitEthernet0/0/1]port default vlan 10
[SW1-GigabitEthernet0/0/1]undo shut
[SW1-GigabitEthernet0/0/1]undo shutdown
Info: Interface GigabitEthernet0/0/1 is not shutdown.
[SW1-GigabitEthernet0/0/1]q
[SW1]interface g0/0/2
[SW1-GigabitEthernet0/0/2]port link-type access
[SW1-GigabitEthernet0/0/2]port default vlan 20
[SW1-GigabitEthernet0/0/2]undo shut
Info: Interface GigabitEthernet0/0/2 is not shutdown.
[SW1-GigabitEthernet0/0/2]q
[SW1]interface g0/0/3
[SW1-GigabitEthernet0/0/3]port link-type ac
[SW1-GigabitEthernet0/0/3]port link-type access
[SW1-GigabitEthernet0/0/3]port default vlan 30
[SW1-GigabitEthernet0/0/3]undo shut
Info: Interface GigabitEthernet0/0/3 is not shutdown.
[SW1]interface g0/0/4
[SW1-GigabitEthernet0/0/4]port link-type trunk
[SW1-GigabitEthernet0/0/4]port trunk allow-pass vlan all
[SW1-GigabitEthernet0/0/4]undo shutdown
Info: Interface GigabitEthernet0/0/4 is not shutdown.
3.配置Switch2如下：
<Huawei>undo terminal monitor
<Huawei>system-view
[Huawei]sysname SW2
[SW2]vlan 40
[SW2-vlan40]vlan 50
[SW2-vlan50]q
[SW2]interface g0/0/2
[SW2-GigabitEthernet0/0/2]port link-type access
[SW2-GigabitEthernet0/0/2]port default vlan 40
[SW2-GigabitEthernet0/0/2]undo shutdown
Info: Interface GigabitEthernet0/0/2 is not shutdown.
[SW2-GigabitEthernet0/0/2]q
[SW2]interface g0/0/3
[SW2-GigabitEthernet0/0/3]port link-type access
[SW2-GigabitEthernet0/0/3]port default vlan 50
[SW2-GigabitEthernet0/0/3]undo shutdown
Info: Interface GigabitEthernet0/0/3 is not shutdown.
[SW2-GigabitEthernet0/0/3]q
[SW2]interface g0/0/1
[SW2-GigabitEthernet0/0/1]port link-type trunk
[SW2-GigabitEthernet0/0/1]undo shutdown
[SW2-GigabitEthernet0/0/1]port trunk allow-pass vlan all
Info: Interface GigabitEthernet0/0/1 is not shutdown.
4.配置Switch3如下：
<Huawei>undo terminal monitor
Info: Current terminal monitor is off.
<Huawei>system-view
[Huawei]sysname SW3
[SW3]vlan 10
[SW3-vlan10]vlan 20
[SW3-vlan20]vlan 30
[SW3-vlan30]vlan 40
[SW3-vlan40]vlan 50
[SW3-vlan50]q
[SW3]interface vlan 10
[SW3-Vlanif10]ip address 10.0.0.254 255.0.0.0
[SW3-Vlanif10]undo shutdown
Info: Interface Vlanif10 is not shutdown.
[SW3-Vlanif10]q
[SW3]interface vlan 20
[SW3-Vlanif20]ip address 20.0.0.254 255.0.0.0
[SW3-Vlanif20]undo shutdown
Info: Interface Vlanif20 is not shutdown.
[SW3-Vlanif20]q
[SW3]interface vlan 30
[SW3-Vlanif30]ip address 30.0.0.254 255.0.0.0
[SW3-Vlanif30]undo shutdown
Info: Interface Vlanif30 is not shutdown.
[SW3-Vlanif30]q
[SW3]interface vlan 40
[SW3-Vlanif40]ip address 40.0.0.254 255.0.0.0
[SW3-Vlanif40]undo shutdown
Info: Interface Vlanif40 is not shutdown.
[SW3-Vlanif40]q
[SW3]interface vlan 50
[SW3-Vlanif50]ip address 50.0.0.254 255.0.0.0
[SW3-Vlanif50]undo shutdown
Info: Interface Vlanif50 is not shutdown.
[SW3-Vlanif50]q
[SW3]interface g0/0/1
[SW3-GigabitEthernet0/0/1]port link-type trunk
[SW3-GigabitEthernet0/0/1]port trunk allow-pass vlan all
[SW3-GigabitEthernet0/0/1]undo shutdown
Info: Interface GigabitEthernet0/0/1 is not shutdown.
[SW3-GigabitEthernet0/0/1]q
[SW3]interface g0/0/2
[SW3-GigabitEthernet0/0/2]port link-type trunk
[SW3-GigabitEthernet0/0/2]undo shutdown
[SW3-GigabitEthernet0/0/2]port link-type trunk
[SW3-GigabitEthernet0/0/2]port trunk allow-pass vlan all
Info: Interface GigabitEthernet0/0/2 is not shutdown.
[SW3]vlan 60
[SW3-vlan60]q
[SW3]interface g0/0/3
[SW3-GigabitEthernet0/0/3]port link-type access
[SW3-GigabitEthernet0/0/3]port default vlan 60
[SW3-GigabitEthernet0/0/3]undo shutdown
[SW3]interface vlan 60
[SW3-Vlanif60]ip address 60.0.0.1 255.0.0.0
5.配置R1如下
<Huawei>system-view
Enter system view, return user view with Ctrl+Z.
[Huawei]sysname R1
[R1-GigabitEthernet0/0/0]ip address 60.0.0.2 255.0.0.0
[R1-GigabitEthernet0/0/0]undo shut
Info: Interface GigabitEthernet0/0/0 is not shutdown.
[R1-GigabitEthernet0/0/0]q
[R1]interface g0/0/1
[R1-GigabitEthernet0/0/1]ip address 70.0.0.254 255.0.0.0
[R1-GigabitEthernet0/0/1]undo shut
Info: Interface GigabitEthernet0/0/1 is not shutdown.
6.配置server1如图：

7.在R1配置默认路由：

8.在SW3上配置静态路由：

结果验证如图：