>When I compiled/installed -current, and started setting things up again, I
>noticed that gif devices now expect IPv6 prefix lengths of 128. Most
>providers use 127, and some even use 64 as prefix lengths for tunnels. I
>was just curious why the change was made to only support prefix lengths of
>128. Is there an RFC that covers this perhaps?
either of the following works. the other configurations are now
considered ambiguous. (the point is, if you specify prefixlen < 128
you don't need to say the peer's address)
# ifconfig inet6 A prefixlen X (X can be < 128)
# ifconfig inet6 A B prefixlen 128
itojun
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