Hi,
fxp0 is connected to a trunk port. Frames tagged with VID=201 arrives at
fxp0 from a switch trunk port, I expect it will be captured at hub_QinQ,
with outer tag = 4000, and inner tag = 201. But in fact, it was received
with the outer and inner tags reversed.
But if I inject the same frame on hub_c4000, the frame is received at
hub_QinQ as expected (inner tag = 201, outer tag = 4000). I am really
confused. Has anyone seen the same problem? Big thanks.
Here is my netgraph setup:
ngctl mkpeer fxp0: hub lower physical
ngctl name fxp0:lower hub_c4000
ngctl mkpeer hub_c4000: vlan up vlan4000
ngctl name hub_c4000:up vlan_QinQ
ngctl mkpeer vlan_QinQ: hub downstream down0
ngctl name vlan_QinQ:downstream hub_QinQ
ngctl msg vlan_QinQ: addfilter { vlan=4000 hook="vlan4000" }
BR
Younger Wang
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