Hi all, I work for a hosting provider which has a few assignments of /19 and /20 IP blocks. At the moment we use bloody spreadhseets to track them in blocks of /24. On the plus side it does make it easy to further subnet down to /29's and /30's for dedicated servers. If we add our existing /24's to RackTables, how would we go about subnetting them into smaller blocks? Would it be a case of deleting a whole prefix and adding the split up chunks back in? Cheers Dave