/48 in Linux

[slaxative]

I grabbed the example configs for ip tools which works great for the /64.
I tried adding an ip in the /48 via ip -6 addr add 2001:470:a81c::1 dev sit1
This is the typical method I use for specifying ips from my /64.
I wasnt able to use this ip at all.
Looking for any kind of insight to utilizing my /48.
Thanks for any help.

[broquea]

Generally I put an IP of the routed allocation on an eth# device. Usually ::1 on the interface that faces an entire LAN. So for your /48 you could put one /64 on eth0, another on eth1, etc etc etc.