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On Saturday, 30 January 2021 10:25:51 CET Moullick Mehra wrote:
Is there any way to add a nonce value to the packet header? The reason being that I want to add an authentication mechanism where the firewall permits only selected headers that have this nonce. Hope this makes sense.
Not with the mainline batman-adv. But you can always add your own changes to your code - making it incompatible with mainline batman-adv.
But I would highly recommend to handle authentication on a layer outside of batman-adv.
Btw. "nonce" is a "number only used once". And you wrote here that the firewall only whitelist one specific nonce. Which would imply that your nonce is not used only once...
Kind regards, Sven