如題,爲了加深大家理解,我這裏用了一個比較複雜的拓撲圖,在三層交換機上面有兩個二層交換機
我要做的,是要實現通過圖中PC0或者PC1來telnet到SW0和SW1來遠程管理這兩臺二層交換機,其中我在三層交換機上面做了個Vlan間三層路由,由於跟本主題無關,這裏不多說了,大家有興趣的可以到網上搜,這裏只給出配置:
1首先按照途中PC0和PC1配置IP、子網掩碼還有網關
2 三層交換機配置Multilayer
2.1劃分vlan10到f0/1,配置vlan10的IP
Switch(config)#interface f0/1
Switch(config-if)#exi
Switch(config)#interface f0/1
Switch(config-if)#switchport access vlan 10
Switch(config-if)#exi
Switch(config)#interface vlan 10
Switch(config-if)#ip address 192.168.10.3 255.255.255.0
Switch(config-if)#exi
同理,vlan20也根據上面命令和圖中的IP192.168.20.3來配置
2.2開啓路由功能
Switch(config)#ip routing
2.3配置vlan1 ip
Switch(config)#interface vlan 1
Switch(config-if)#ip address 192.168.7.100 255.255.255.0
這個Vlan1是用來幹嗎的呢,在這個三層交換機上面配置這個Vlan1,是爲了作爲上面兩個二層交換機的管理IP的默認路由,在後面配置二層交換機時會說明
3二層交換機配置
Switch(config)#interface vlan 1
Switch(config-if)#ip address 192.168.7.101 255.255.255.0
Switch(config-if)#exi
Switch(config)#ip default-gateway 192.168.7.100
//配置telnet登錄
Switch(config)#enable password cisco
Switch(config)#line vty 0 4
Switch(config-line)#password cisco
Switch(config-line)#login
這裏配置這個交換機的默認路由爲剛纔三層交換機的vlan1的ip,這樣在後面PC ping這個二層交換機的時候,在回包訪問PC主機的時候,就會有路由,也就是把包轉發給三層交換機再讓三層交換機轉發給PC主機
同理在上面另外那臺二層交換機也是按照圖中的IP和參考上面的配置進行配置。
4在PC0上面分別ping一下兩臺二層交換機的vlan1的ip
PC>ping 192.168.7.101
Pinging 192.168.7.101 with 32 bytes of data:
Request timed out.
Request timed out.
Reply from 192.168.7.101: bytes=32 time=0ms TTL=254
Reply from 192.168.7.101: bytes=32 time=0ms TTL=254
Ping statistics for 192.168.7.101:
Packets: Sent = 4, Received = 2, Lost = 2 (50% loss),
Approximate round trip times in milli-seconds:pin
Minimum = 0ms, Maximum = 0ms, Average = 0ms
PC>
PC>ping 192.168.7.102
Pinging 192.168.7.102 with 32 bytes of data:
Request timed out.
Request timed out.
Reply from 192.168.7.102: bytes=32 time=0ms TTL=254
Reply from 192.168.7.102: bytes=32 time=0ms TTL=254
Ping statistics for 192.168.7.102:
Packets: Sent = 4, Received = 2, Lost = 2 (50% loss),
Approximate round trip times in milli-seconds:
Minimum = 0ms, Maximum = 0ms, Average = 0ms
可以ping通
telnet登錄到其中一臺二層交換機
PC>telnet 192.168.7.101
Trying 192.168.7.101 ...Open
User Access Verification
Password:
Switch>en
Password:
Switch#