This is my last attempt on routing on a STICK!

[WIZARD1325]

WHAT IS WRONG?????????????

ROUTER

interface FastEthernet0/0

no ip address

duplex auto

speed auto

interface FastEthernet0/0.1

encapsulation dot1Q 10

ip address 192.168.10.1 255.255.255.0

!

interface FastEthernet0/0.2

encapsulation dot1Q 20

ip address 192.168.20.1 255.255.255.0

SWITCH

interface GigabitEthernet1/0/1

switchport access vlan 10

!

interface GigabitEthernet1/0/2

switchport access vlan 20

interface GigabitEthernet1/0/24

switchport trunk encapsulation dot1q

switchport mode trunk

nothing pings

anywhere

[Julio E. Moisa]

Hi

The problem is:

interface FastEthernet0/0.1

encapsulation dot1Q 1 native  <---- it should be 10 and remove the "native" word. 

ip address 192.168.10.1 255.255.255.0

!

interface FastEthernet0/0.2

encapsulation dot1Q 2  <---- it should be 20

ip address 192.168.20.1 255.255.255.0

A suggestion is try to keep and standard for example if the encapsulation is 10 (encapsulation dot1q 10) the sub-interface should be f0/0.10 as well, it will be useful to identify the related configuration.

:-)

[WIZARD1325]

standby,

and Nope that didn't fix anything still can't ping between computers

or router etc

[Jon Marshall]

Post output of following from switch - 

"sh int trunk"

"sh vlan brief" 

Jon

[Julio E. Moisa]

Have you verified the computers are connected to the proper ports, can the PCs ping to their gateways? For example the PC 192.168.10.10 can ping the gateway 192.168.10.1?

[WIZARD1325]

No it cant ping its own gateway

[Julio E. Moisa]

Hi

Alright, have you verified the proper cabling on the packet tracer, if the VLANs are created, it could be a bug, try with other switch or verify if the computers are associated to the specific VLAN. 

[WIZARD1325]

Tried on 2 computers using packet tracer

Started from scratch same results

Using straight through cabling

Should there be a cross over cable for the switch to router?

[Julio E. Moisa]

Hi

No, straight cable can be used. You configuration should be:

ROUTER

interface fa0/0

description TO-SWITCH

no shutdown

interface fa0/0.10

description VLAN10

encapsulation dot1q 10

ip address 192.168.10.1 255.255.255.0

no shutdown

interface fa0/0.20

description VLAN20

encapsulation dot1q 20

ip address 192.168.20.1 255.255.255.0

no shutdown

SWITCH

vlan 10

name PC1

vlan 20

name PC2

interface g1/0/1

description PC1

no shutdown

switchport

switchport mode access

switchport access vlan 10

interface g1/0/2

description PC2

no shutdown

switchport

switchport mode access

switchport access vlan 20

interface g1/0/24

description TO-ROUTER

no shutdown

switchport

switchport mode trunk

PC 1

ip address 192.168.10.10

subnet mask 255.255.255.0

default gateway 192.168.10.1

PC 2

ip address 192.168.20.20

subnet mask 255.255.255.0

default gateway 192.168.20.1

:-)

[Richard Burts]

Clearly something is not set up right and at this point we do not know if it is an issue on the router or on the switch. Jon has suggested two good commands to use on the switch to investigate possible issues on the switch. I would suggest that the output of show interface status on the switch would be helpful. On the router would you post the output of these commands show ip protocol, show ip interface brief,  show ip route, and show arp.

HTH

Rick

[WIZARD1325]

Switch#sh int trunk

Port Mode Encapsulation Status Native vlan

Gig1/0/24 on 802.1q trunking 1

Port Vlans allowed on trunk

Gig1/0/24 1-1005

Port Vlans allowed and active in management domain

Gig1/0/24 1,10,20

Port Vlans in spanning tree forwarding state and not pruned

Gig1/0/24 1,10,20

Switch#sh vlan brief

VLAN Name Status Ports

---- -------------------------------- --------- -------------------------------

1 default active Gig1/0/3, Gig1/0/4, Gig1/0/5, Gig1/0/6

Gig1/0/7, Gig1/0/8, Gig1/0/9, Gig1/0/10

Gig1/0/11, Gig1/0/12, Gig1/0/13, Gig1/0/14

Gig1/0/15, Gig1/0/16, Gig1/0/17, Gig1/0/18

Gig1/0/19, Gig1/0/20, Gig1/0/21, Gig1/0/22

Gig1/0/23, Gig1/1/1, Gig1/1/2, Gig1/1/3

Gig1/1/4

10 cookies active Gig1/0/1

20 chips active Gig1/0/2

1002 fddi-default active

1003 token-ring-default active

1004 fddinet-default active

1005 trnet-default active

Gig1/0/1 connected 10 auto auto 10/100BaseTX

Gig1/0/2 connected 20 auto auto

[Julio E. Moisa]

Hi

Compare the configuration shared above or try with other devices. 

[WIZARD1325]

i just did one from scratch excatly how you put it

I still cannot ping anybody WTF MAN!!!!!

[WIZARD1325]

does anybody have team viewer

so they can see what im talking about?

[Richard Burts]

Please post the output of the commands that I requested. It might also help if you post full running config of both router and switch.

HTH

Rick