[ipv6-wg@ripe.net] Fw: Help setting ipv6 address on my machine with two ethernet cards

i've two ethernet card on two host and i'm not able to set ipv6 address on both ethernet card. how can i do?

question : the device name of ethernet card for ipv6 is sit0 sit1 sit2 etc etc???

if not, how can i set ipv6 address for every interface that i have?