Fast RFC-compliant IPv4/IPv6 CIDR library for C and Python. Bulk operations, LC-trie LPM indexing, IANA classification. Zero dependencies. 10–100x faster than ipaddress.
python linux networking openbsd ipv6 bgp ipv4 ip-address subnet python-extension cidr c11 c-library network-security lpm zero-dependencies rfc-compliant prefix-matching
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Updated
Jun 10, 2026 - C