On 2/28/19 9:21 AM, DcUK wrote: .. > > The aur/iprange package is another alternative for manipulating IP lists. > > It can optimize/merge/compare/convert in pretty much any way you like. Thanks - wasn't aware of this one either. A quick glance at source and it seems to be IPV4 only with no IPV6 support. I may have missed it I only glanced at the C code briefly. The python library does have the advantage of handling IPV6 as well. gene