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Packet tracer problem in vlan packet forwarding

chansonni
Level 1
Level 1

Hi,

I have a problem in attached scenario(vlanscenario.zip)

In this scenario Vlan1 is management(native) vlan on all switches.

There is 2 defined vlan: vlan2 and vlan3 on all switches

Inter switches links are trunk 

There is 2 unexpected problem in this scenario

1.the laptop connected to the hub can receive ping requests from vlan 2 in all floor(it should drop it because the packet is tagged using .1q) 

2.pings from vlan1 in all 3 floors are received successfully by vlan2 in second floor .

I use packet tracer-7.

Thanks in advance.

4 Replies 4

Attachment not opening!!

The .zip file contains .pkt file  which is created using CiscoPacket_Tracer_7.0_build_201_X64_GEEKBOY.IR.exe

I checked it again and it seems there is no problem with file.

Thanks

HI!

can you please try to send the config files..

if it possible  try to send your topology ..

thank you 

CRaju

farcosre
Cisco Employee
Cisco Employee

Hello, I just see your packet tracer,

The laptop  "mg21" of vlan 2 that is located in the second floor has the same IP address than the laptop which is connected to the hub (laptop 11)

1. Actually the laptop from the vlan 2 in the second floor pings to itself

2. pings from vlan1 in all 3 floors are received successfully by laptop 11 in second floor.

So I recommend you to change the addressing for vlan 1 or vlan 2 to a different network segment.

Greetings!!