GNS3 1.2.1 使用3725模拟交换机vlan不能使用Trunk
pc2可以ping通182.158.20.129，即vlan地址pc8不能ping通，显示：
PC8> ping 182.158.20.129
host (182.158.20.129) not reachable
我试过好的ios，都不行。求帮忙！具体信息见下面。
R2 f1/2：
interface FastEthernet1/2
switchport mode trunk
R2 f1/15：
interface FastEthernet1/15
switchport access vlan 20
R2 Vlan:
interface Vlan20
ip address 182.158.20.129 255.255.255.128
R2#show vlan-switch
VLAN Name Status Ports
---- -------------------------------- --------- -------------------------------
1 default active Fa1/0, Fa1/1, Fa1/3, Fa1/4
Fa1/5, Fa1/6, Fa1/7, Fa1/8
Fa1/9, Fa1/10, Fa1/11, Fa1/12
Fa1/13, Fa1/14
20 OA active Fa1/15
1002 fddi-default act/unsup
1003 token-ring-default act/unsup
1004 fddinet-default act/unsup
1005 trnet-default act/unsup
VLAN TypeSAID MTU Parent RingNo BridgeNo StpBrdgMode Trans1 Trans2
---- ----- ---------- ----- ------ ------ -------- ---- -------- ------ ------
1 enet100001 1500- - - - - 1002 1003
20 enet100020 1500- - - - - 0 0
1002 fddi101002 1500- - - - - 1 1003
1003 tr 101003 15001005 0 - - srb 1 1002
1004 fdnet 101004 1500- - 1 ibm- 0 0
1005 trnet 101005 1500- - 1 ibm- 0 0
SW5为Gns3自带的Ethernet Switch.
端口2为trunk，8为access，两个都已经划入vlan20.
pc2: 182.158.20.130/25 182.158.20.129
pc8: 182.158.20.131/25 182.158.20.130
沙发~支持楼主 你路由器不用开启Trunk把端口划分到vlan 20 就可以了。SW5是做不了配置的就当做是一台HUB。
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