vlan综合实验

发布于：2025-08-15 ⋅ 阅读:(15) ⋅ 点赞:(0)

实验要求：

1、pc1和pc3所在接口为access；属于vlan 2；

   pc2/pc4/pc5/pc6处于同一网段；其中pc2可以访问pc4/pc5/pc6;

pc4可以访问pc6; pc5不能访问pc6;

2、pc1/pc3与pc2/pc4/pc5/pc6不在同一网段；

3、所有pc通过DHCP获取IP地址，且pc1/pc3可以正常访问pc2/pc4/pc5/pc6;

实验分析

  • PC2、PC4、PC5、PC6 处于同一广播域，PC1 与 PC3 则位于另一广播域。

  • 需要在交换机上创建所需的 VLAN，并将各端口分配至相应 VLAN，同时配置端口链路模式。

  • 交换机之间应建立 Trunk（或混合）链路，并确保允许相关 VLAN 的数据通过。

  • 路由器需通过子接口实现 VLAN 间路由。

  • 配置 DHCP 服务，为不同 VLAN 下发 IP 地址。

配置步骤

1. 创建 VLAN
在 SW1、SW2、SW3 上分别执行：

vlan batch 2 to 6

2. 端口划分与链路模式配置

  • SW1

    • PC1 接口（Access，VLAN 2）：

      int g0/0/1 
port link-type access 
port default vlan 2

    • PC2 接口（Hybrid，PVID VLAN 3，放通 VLAN 3~6 无标签）：

      int g0/0/2 
port link-type hybrid 
port hybrid untagged vlan 3 to 6 
port hybrid pvid vlan 3

  • SW2

    • PC3 接口（Access，VLAN 2）：

      int g0/0/1
port link-type access 
port default vlan 2

    • PC4 接口（Hybrid，PVID VLAN 4，放通 VLAN 3~6 无标签）：

      int g0/0/2 
port hybrid untagged vlan 3 to 6 
port hybrid pvid vlan 4

  • SW3

    • PC5 接口（Hybrid，PVID VLAN 5，放通 VLAN 3~5 无标签）：

      int g0/0/1
port hybrid untagged vlan 3 to 5 
port hybrid pvid vlan 5

    • PC6 接口（Hybrid，PVID VLAN 6，放通 VLAN 3、4、6 无标签）：

      int g0/0/2 
port hybrid untagged vlan 3 4 6 
port hybrid pvid vlan 6

3. 交换机间 Trunk 链路配置
确保 VLAN 2~6 均可通过：

[SW1] 
int g0/0/3 
port link-type trunk 
port trunk allow-pass vlan 2 to 6 
[SW2] 
int g0/0/3 
port link-type trunk 
port trunk allow-pass vlan 2 to 6 
int g0/0/4 
port link-type trunk 
port trunk allow-pass vlan 2 to 6 
[SW3] 
int g0/0/3 
port link-type trunk 
port trunk allow-pass vlan 2 to 6

SW1 与路由器连接的接口为 Hybrid 模式，VLAN 2 打标签，其余 VLAN 无标签：

int g0/0/4 
port hybrid tagged vlan 2 
port hybrid untagged vlan 3 to 6

4. 路由器子接口配置（VLAN 间路由）

  • VLAN 2 使用子接口（打标签），其余 VLAN 使用物理接口（无标签）：

int g0/0/0 
ip address 192.168.1.1 24 
int g0/0/0.1 
ip address 192.168.2.1 24 
dot1q termination vid 2 
arp broadcast enable

5. DHCP 配置

  • 为 VLAN 3~6 配置地址池：

dhcp enable 
ip pool aa 
network 192.168.1.0 mask 24 
gateway-list 192.168.1.1 dns-list 114.114.114.114 8.8.8.8

  • 为 VLAN 2 配置地址池：

ip pool bb 
network 192.168.2.0 mask 24 
gateway-list 192.168.2.1 dns-list 114.114.114.114 8.8.8.8

  • 接口绑定 DHCP 全局池：

int g0/0/0 
dhcp select global 
int g0/0/0.1 
dhcp select global

实验验证

  • PC2 可与 PC4、PC5、PC6 通信。

  • PC4 可访问 PC6；PC5 无法访问 PC6。

  • PC1、PC3 可与 PC2、PC4、PC5、PC6 正常通信

PC2> ping 192.168.1.4

Pinging 192.168.1.4 with 32 bytes of data:

Reply from 192.168.1.4: bytes=32 time<1ms TTL=128
Reply from 192.168.1.4: bytes=32 time<1ms TTL=128
Reply from 192.168.1.4: bytes=32 time<1ms TTL=128
Reply from 192.168.1.4: bytes=32 time<1ms TTL=128

Ping statistics for 192.168.1.4:
    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
    Minimum = 0ms, Maximum = 1ms, Average = 0ms

PC2> ping 192.168.1.5

Pinging 192.168.1.5 with 32 bytes of data:

Reply from 192.168.1.5: bytes=32 time<1ms TTL=128
Reply from 192.168.1.5: bytes=32 time<1ms TTL=128
Reply from 192.168.1.5: bytes=32 time<1ms TTL=128
Reply from 192.168.1.5: bytes=32 time<1ms TTL=128

Ping statistics for 192.168.1.5:
    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
    Minimum = 0ms, Maximum = 1ms, Average = 0ms

PC2> ping 192.168.1.6

Pinging 192.168.1.6 with 32 bytes of data:

Reply from 192.168.1.6: bytes=32 time<1ms TTL=128
Reply from 192.168.1.6: bytes=32 time<1ms TTL=128
Reply from 192.168.1.6: bytes=32 time<1ms TTL=128
Reply from 192.168.1.6: bytes=32 time<1ms TTL=128

Ping statistics for 192.168.1.6:
    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
    Minimum = 0ms, Maximum = 1ms, Average = 0ms

PC4> ping 192.168.1.6

Pinging 192.168.1.6 with 32 bytes of data:

Reply from 192.168.1.6: bytes=32 time<1ms TTL=128
Reply from 192.168.1.6: bytes=32 time<1ms TTL=128
Reply from 192.168.1.6: bytes=32 time<1ms TTL=128
Reply from 192.168.1.6: bytes=32 time<1ms TTL=128

Ping statistics for 192.168.1.6:
    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
    Minimum = 0ms, Maximum = 1ms, Average = 0ms

PC5> ping 192.168.1.6

Pinging 192.168.1.6 with 32 bytes of data:

Request timed out.
Request timed out.
Request timed out.
Request timed out.

Ping statistics for 192.168.1.6:
    Packets: Sent = 4, Received = 0, Lost = 4 (100% loss)

PC1> ping 192.168.1.4

Pinging 192.168.1.4 with 32 bytes of data:

Reply from 192.168.1.4: bytes=32 time<1ms TTL=128
Reply from 192.168.1.4: bytes=32 time<1ms TTL=128
Reply from 192.168.1.4: bytes=32 time<1ms TTL=128
Reply from 192.168.1.4: bytes=32 time<1ms TTL=128

Ping statistics for 192.168.1.4:
    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
    Minimum = 0ms, Maximum = 1ms, Average = 0ms

PC1> ping 192.168.1.5
Pinging 192.168.1.5 with 32 bytes of data:

Reply from 192.168.1.5: bytes=32 time<1ms TTL=128
Reply from 192.168.1.5: bytes=32 time<1ms TTL=128
Reply from 192.168.1.5: bytes=32 time<1ms TTL=128
Reply from 192.168.1.5: bytes=32 time<1ms TTL=128

Ping statistics for 192.168.1.5:
    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
    Minimum = 0ms, Maximum = 1ms, Average = 0ms

PC1> ping 192.168.1.6
Pinging 192.168.1.6 with 32 bytes of data:

Reply from 192.168.1.6: bytes=32 time<1ms TTL=128
Reply from 192.168.1.6: bytes=32 time<1ms TTL=128
Reply from 192.168.1.6: bytes=32 time<1ms TTL=128
Reply from 192.168.1.6: bytes=32 time<1ms TTL=128

Ping statistics for 192.168.1.6:
    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
    Minimum = 0ms, Maximum = 1ms, Average = 0ms

网站公告

今日签到

点亮在社区的每一天
去签到

热门文章

最新发布