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cwoodfield's avatar
cwoodfield
Aspirant
Nov 30, 2025

GS110EMX not tagging frames

I've had this switch for quite a while but haven't had a need to configure VLANs until now. I've started by moving all the ports to Vlan 2, and configuring ports 7 and 8 - part of an LACP bundle - as tagged interfaces .

 

However, pcaps on my upstream router show that frames coming from the switch over the trunk do not have VLAN tags; it's receiving tagged frames from the router and processing those correctly, but there are no tags from frames coming from the switch seen by the router. 

Any ideas what to check that might be misconfigured?

Configuration screenshots below:

 

Pcap from upstream router shows untagged frames from the switch, while response is properly tagged:

 

 

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