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IPv4/IPv6 subnet calculator: CIDR, netmask, VLSM, BGP ASN, prefix-list optimiser, MAC/OUI lookup, cheat sheet, Base64/HEX.
IPv4/IPv6 subnet calculator: CIDR, netmask, VLSM, BGP ASN, prefix-list optimiser, MAC/OUI lookup, cheat sheet, Base64/HEX.
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