why pc's cannot ping each other ?

[as12john_A]

http://www.mediafire.com/file/urfo6f033vcqire/testo.pkt/file

version packet tracer:7.1.1.0138

question:Why cannot pc's ping one another?

Thanks in advanced

[paul driver]

Hello

i can open that url link however

have you made sure those clients don’t have any software Fw enabled negating icmp?

[Georg Pauwen · Accepted solution]

Hello,

first of all, you need to remove the subinterface for Vlan 1 on the router and put the IP address on the physical interface:

interface GigabitEthernet0/0
ip address 192.168.50.1 255.255.255.0
duplex auto
speed auto
!
interface GigabitEthernet0/0.2
encapsulation dot1Q 2
ip address 192.168.4.1 255.255.255.0
!
interface GigabitEthernet0/0.3
encapsulation dot1Q 3
ip address 192.168.30.1 255.255.255.0

Then, on Switch0, make the links trunks:

interface FastEthernet0/1
switchport mode trunk
!
interface FastEthernet0/2
switchport mode trunk

Do the same on Switch2:

interface FastEthernet0/6
switchport mode trunk

Then, on Switch0, create Vlan 2 and Vlan 3:

Switch0#conf t

Switch0(config)#vlan 2

Switch0(config-vlan)#exit

Switch0(config)#vlan 3

Switch0(config)#end

[Georg Pauwen]

Here is the revised .pkt file:

http://www.mediafire.com/file/63bdmhvv4v3psxs/testo_revised.pkt/file

[as12john_A]

Great Thanks. But,would you please briefly tell me what was my problems?

[as12john_A]

Thanks. It did work fine. However,would you please tell me the reason why for deleting VLAN1?
Moreover,could you please show me why I must create such a database like vlan 2 and 3 which you just said?

Thanks in advance

[Georg Pauwen]

Hello,

the most important part of the changes I sent is that you configure the links between the switches and between the switches and the router as trunk links. Only trunk links can carry traffic for multiple VLANs (1,2, and 3 in your case). The reason you need to create the VLANs on all switches is that without the VLANs existing, the trunk cannot send them. You could also configure one switch as a VTP server switch and the other as the VTP client; either way, all VLANs need to exist on all participating switches.

I did not actually delete VLAN 1, I just put it on the physical interface, which effectively makes it the native VLAN for the trunk (by configuring subinterfaces on the router interface, you create a logical trunk).

Does that make sense ?