cisco路由器与cisco交换机怎么设置才可以实现之间的通信?

2024-11-11 12:43:09
推荐回答(4个)
回答1:

你说的交换机是二层交换机还是三层交换机,如果是二层交换机就配置VLAN1的管理IP地址,这样在其他设备上就可以访问它了。命令如下:
int vlan1
ip add 192.168.1.1 255.255.255.0
no sh
如果是三层交换机就把该接口设置为三层模式,然后配置改接口的IP地址,这样其他设备就可以与它通信了。命令如下:
int f0/0
no sw
ip add 192.168.1.1 255.255.255.0
no sh
路由器只要在该接口上配置IP地址就可以通信了。其前提条件是有相应的路由及接口能够正常工作。命令如下:
int f1/0
ip add 192.168.1.2 255.255.255.0

no sh

回答2:

1. 设置交换机的vlan 2和trunk
switch#vlan database
switch(vlan)#vlan 2
switch(vlan)#exit
switch#conf t
switch(config)#hostname SWA

SWA(config)#int f0/6
SWA(config-if)#switchport access vlan 2
SWA(config-if)#int f0/7
SWA(config-if)#switchport access vlan 2
SWA(config-if)#int f0/1
SWA(config-if)#switchport mode trunk
SWA(config-if)#switchport trunk allowed vlan 1,2,3
SWA(config-if)#switchport trunk encap dot1q
SWA(config-if)#end
SWA#sh vlan
SWA#sh run

检查设置情况,应该能正确的看到vlan和trunk等信息。
dot1q是vlan中继协议802.1q,有的设备上使用的是cisco的isl协议,它们的作用
是一样的。
计算机的ip地址分别为10.65.1.1、10.66.1.1,网关分别指向路由器的子接口
10.65.1.2、10.66.1.2。
现在从PCA向PCB发关Ping 的ICMP数据包肯定是不通的。即:
[root#PCA root]# ping 10.66.1.1 (不通)

2. 设置路由器f0/0 为两个子接口
roa(config)#int f0/0
roa(config-if)#no shut
roa(config-if)#int f0/0.1
roa(config-subif.1)#encapsulation dot1q 1
roa(config-subif.1)#ip address 10.65.1.2 255.255.0.0
roa(config-subif.1)#int f0/0.2
roa(config-subif.2)#encapsulation dot1q 2
roa(config-subif.2)#ip address 10.66.1.2 255.255.0.0
roa(config-subif.2)#exit
roa(config)#ip routing
roa#sh run

3. 测试可通性
[root#PCA root]# ping 10.66.1.1 (通)
[root#PCA root]# ping 10.66.1.2 (通)
[root#PCB root]# ping 10.65.1.1 (通)
[root#PCB root]# ping 10.65.1.2 (通)

回答3:

要把路由器设置成单臂路由器,就可以了。
设置单臂路由器的方法是,先把路由器与交换机连接的接口的IP信息都删除(no ip add),并且开启此接口(no shut),然后进入此接口的子接口模式设置对应你两个vlan的相关配置。设置好后,只要把交换机与路由器相连的那个接口设置成trunk就可以了。

回答4:

详细说明一下你的设备型号,联网需求,不然没法帮你

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