On Tue, Apr 14, 2015, at 11:43, Stuart Henderson wrote: > Just be aware that any space you get from another LIR now is going to be > from a PA block, so a) they can ask for it back or change terms and b) it's > a pretty good idea to have either a tunnel or transit from the network > which is announcing the wider prefix.
Not if you do it as a RIPE-NCC-blessed transfer. In this case the original allocation (if bigger) will be broken into smaller pieces so that it does not contain the transferred block.
