所以假如環境如下:
我們要先觀察一下switch上所設定的vlan:
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Switch#show vlan
VLAN Name Status Ports ---- -------------------------------- --------- ------------------------------- 1 default active Fa0/1, Fa0/2, Fa0/3, Fa0/4 Fa0/5, Fa0/6, Fa0/7, Fa0/8 Fa0/9, Fa0/10, Fa0/11, Fa0/12 Fa0/13, Fa0/14, Fa0/15, Fa0/16 Fa0/17, Fa0/18, Fa0/19, Fa0/20 Fa0/21, Fa0/22, Fa0/23, Fa0/24 Gig1/1, Gig1/2 |
上面可以看的出來，目前所有的端口都是在預設下的vlan1。
那麼該如何切割vlan呢?
假定有個環境如下:
這四台電腦是可以互通的
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Packet Tracer PC Command Line 1.0 PC>ping 192.168.1.2
Pinging 192.168.1.2 with 32 bytes of data:
Reply from 192.168.1.2: bytes=32 time=0ms TTL=128 Reply from 192.168.1.2: bytes=32 time=0ms TTL=128 Reply from 192.168.1.2: bytes=32 time=4ms TTL=128 Reply from 192.168.1.2: bytes=32 time=0ms TTL=128
Ping statistics for 192.168.1.2: Packets: Sent = 4, Received = 4, Lost = 0 (0% loss), Approximate round trip times in milli-seconds: Minimum = 0ms, Maximum = 4ms, Average = 1ms
PC>ping 192.168.1.3
Pinging 192.168.1.3 with 32 bytes of data:
Reply from 192.168.1.3: bytes=32 time=0ms TTL=128 Reply from 192.168.1.3: bytes=32 time=0ms TTL=128 Reply from 192.168.1.3: bytes=32 time=0ms TTL=128 Reply from 192.168.1.3: bytes=32 time=0ms TTL=128
Ping statistics for 192.168.1.3: Packets: Sent = 4, Received = 4, Lost = 0 (0% loss), Approximate round trip times in milli-seconds: Minimum = 0ms, Maximum = 0ms, Average = 0ms
PC>ping 192.168.1.4
Pinging 192.168.1.4 with 32 bytes of data:
Reply from 192.168.1.4: bytes=32 time=0ms TTL=128 Reply from 192.168.1.4: bytes=32 time=0ms TTL=128 Reply from 192.168.1.4: bytes=32 time=0ms TTL=128 Reply from 192.168.1.4: bytes=32 time=0ms 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 = 0ms, Average = 0ms
PC> |
首先我們先切割vlan10、vlan20
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Switch>en Switch#conf t Enter configuration commands, one per line. End with CNTL/Z. Switch(config)#vlan10 ^ % Invalid input detected at '^' marker.
Switch(config)#vlan 10 Switch(config-vlan)#vlan 20 Switch(config-vlan)#exit Switch(config)#exit Switch# %SYS-5-CONFIG_I: Configured from console by console
Switch#show vlan
VLAN Name Status Ports ---- -------------------------------- --------- ------------------------------- 1 default active Fa0/1, Fa0/2, Fa0/3, Fa0/4 Fa0/5, Fa0/6, Fa0/7, Fa0/8 Fa0/9, Fa0/10, Fa0/11, Fa0/12 Fa0/13, Fa0/14, Fa0/15, Fa0/16 Fa0/17, Fa0/18, Fa0/19, Fa0/20 Fa0/21, Fa0/22, Fa0/23, Fa0/24 Gig1/1, Gig1/2 10 VLAN0010 active 20 VLAN0020 active 1002 fddi-default act/unsup 1003 token-ring-default act/unsup 1004 fddinet-default act/unsup 1005 trnet-default act/unsup
VLAN Type SAID MTU Parent RingNo BridgeNo Stp BrdgMode Trans1 Trans2 ---- ----- ---------- ----- ------ ------ -------- ---- -------- ------ ------ 1 enet 100001 1500 - - - - - 0 0 10 enet 100010 1500 - - - - - 0 0 20 enet 100020 1500 - - - - - 0 0 1002 fddi 101002 1500 - - - - - 0 0 1003 tr 101003 1500 - - - - - 0 0 1004 fdnet 101004 1500 - - - ieee - 0 0 1005 trnet 101005 1500 - - - ibm - 0 0
Remote SPAN VLANs ------------------------------------------------------------------------------
Primary Secondary Type Ports ------- --------- ----------------- ------------------------------------------ |
接著就必須將端口指定給設定好的vlan
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Switch#conf t Enter configuration commands, one per line. End with CNTL/Z. Switch(config)#interface fastethernet 0/1 Switch(config-if)#switchport access vlan 10 Switch(config-if)#exit Switch(config)#interface fastethernet 0/2 Switch(config-if)#switchport access vlan 10 |
一個一個端口設定太慢了
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Switch(config)#interface range fastethernet 0/3 - 4 Switch(config-if-range)#switchport access vlan 20 |
再檢查一次目前vlan的狀況，可以看到目前1~2是vlan10、3~4是vlan20
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Switch#show vlan
VLAN Name Status Ports ---- -------------------------------- --------- ------------------------------- 1 default active Fa0/5, Fa0/6, Fa0/7, Fa0/8 Fa0/9, Fa0/10, Fa0/11, Fa0/12 Fa0/13, Fa0/14, Fa0/15, Fa0/16 Fa0/17, Fa0/18, Fa0/19, Fa0/20 Fa0/21, Fa0/22, Fa0/23, Fa0/24 Gig1/1, Gig1/2 10 VLAN0010 active Fa0/1, Fa0/2 20 VLAN0020 active Fa0/3, Fa0/4 |
所以不同vlan就無法互通了
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PC>ping 192.168.1.2
Pinging 192.168.1.2 with 32 bytes of data:
Reply from 192.168.1.2: bytes=32 time=1ms TTL=128 Reply from 192.168.1.2: bytes=32 time=0ms TTL=128 Reply from 192.168.1.2: bytes=32 time=0ms TTL=128 Reply from 192.168.1.2: bytes=32 time=0ms TTL=128
Ping statistics for 192.168.1.2: Packets: Sent = 4, Received = 4, Lost = 0 (0% loss), Approximate round trip times in milli-seconds: Minimum = 0ms, Maximum = 1ms, Average = 0ms
PC>ping 192.168.1.3
Pinging 192.168.1.3 with 32 bytes of data:
Request timed out. Request timed out. Request timed out. Request timed out.
Ping statistics for 192.168.1.3: Packets: Sent = 4, Received = 0, Lost = 4 (100% loss),
PC>ping 192.168.1.4
Pinging 192.168.1.4 with 32 bytes of data:
Request timed out. Request timed out. Request timed out. Request timed out.
Ping statistics for 192.168.1.4: Packets: Sent = 4, Received = 0, Lost = 4 (100% loss), |
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