Hello, 

I am using the example "gnrc_networking" on the IoT-LAB platform with M3 nodes 
(latest version of RIOT). 
I have a problem with link-local addresses. I figured out that some of my nodes 
have the same link-local address. 
For example : 

m3-369; inet6 addr: fe80::14bb:f965:106b:1114 scope: link VAL 
m3-361; inet6 addr: fe80::14bb:f965:106b:1114 scope: link VAL 

When I request a node about his parent using "rpl show", it only returns the 
link-local address of his parent so I can't associate this address with one 
particular node. 

I tried to find the way these addresses are constructed but without success. I 
thought it was based on the MAC address. 

Have you an idea of how I can fix this problem ? 



Any help would be really appreciated. 




Thanks, 




Clément Cormier 

University of Caen, France 



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