06-19-2016 02:04 PM
I am trying to establish an L2 encapsulation in a GRE tunnel between AMC and a third party device (VyOS router 1.1.7 with gre-bridge feature).
On the capture, the only one difference i have seen is the 802.1Q tag inside the encapsulated frame from the controller, and the response without this tag.
Do the controller accept such untagged frames ?
Solved! Go to Solution.
06-22-2016 12:56 PM
06-23-2017 06:20 AM
It works quite perfectly .... but some GRE packet are sent with a flag on GRE Header that contain a not null value (like DNS requests issued by Apple devices).
The RFC says that value (Flags field of the GRE header) must be null otherwyse the recipient drop the packet ...
I don't know how to modify this GRE packet tagging!!!