Split a subnet — this feature might not be supported in all ipcalc versions, check for your OS. Special addresses are loopback addresses, IPv4-address mapped spaces, and 6-to-4 addresses for crossing from an IPv4 network to an IPv6 network. New issue. When you input networks into the IP calculator, it will summarize the supernet and exclude any invalid networks. Fedora 29 is the current developing platform, so use given hints above to create a RPM.
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