Can't see VLAN Tags on trunk port

aj4

Hello I have a simple VLAN set up as shown in the diagram below


I am able to ping from PC1 to PC2 and the monitor port is set to mirror the trunk port on switch 1. When I run Wireshark on the monitor port, I see the ICMP traffic but I do not see any VLAN tags on the frames. Shouldn't I be seeing VLAN 100 tagged traffic on the trunk port?

Native VLAN is set to 1 on both switches.

I tried the following monitor command:
monitor session 1 source int fa1/0/48
monitor session 1 destination int fa1/0/2

Then I tried setting the destination as follows and still didn't see any tagged traffic:
monitor session 1 destination int fa1/0/2 encapsulation replicate


I would really like to see some tagged traffic, any help would be highly appreciated.

Thank you.

networker050184

The encapsulation replicate should get you what you are looking for I believe. Is your source the trunk?

aj4

Thank you for your response.

Yes, the source is the trunk and that is why I'm a bit baffled.