change Source Addr of 0

Hi 

is there a possibility of setting the source addr?
In my system with Raspberry and Can Hat everything woks fine, but I would like to change the source addr, which is currently always 0 (zero).
I am not sure, that in a N2K system, an addr of 0 is allowed, but on my boat using several n2k-devices from different companies I have never seen an addr of 0.

Best Regards Uwe