IPv6 Utilities

IPv6 Subnet Generator

Generate IPv6 subnets from a prefix. Useful for network planning and address allocation.

IPv6 Prefix Enter an IPv6 prefix with length (e.g., 2001:db8::/32)

New Prefix Length New prefix length for generated subnets (must be larger than current)

Limit Results Maximum number of subnets to display (0 = all, max 10,000)

IPv4/IPv6 Address Converter (RFC 6052)

Convert between IPv4 and IPv6 addresses using RFC 6052 IPv4-embedded IPv6 address format.

IPv4 to IPv6

IPv4 Address

IPv6 Prefix (optional) Default: 64:ff9b:: (RFC 6052)

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IPv6 to IPv4

IPv6 Address

MAC Address Tools

Extract MAC addresses from SLAAC IPv6 addresses or generate link-local addresses from MAC addresses.

Extract MAC from IPv6

IPv6 Address (SLAAC) Must contain EUI-64 interface ID (fffe in middle)

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MAC to Link-Local

MAC Address Formats: xx:xx:xx:xx:xx:xx, xx-xx-xx-xx-xx-xx

Reverse DNS (ip6.arpa) Generator

Generate reverse DNS PTR record names for IPv6 addresses in ip6.arpa format.

IPv6 Address

Prefix Length (0 = full address) Use 0 for full PTR record, or specify prefix for zone delegation

About These Tools

Subnet Generator

Generates IPv6 subnets from a given prefix, useful for network planning and allocating address space to different segments of your network.

RFC 6052 Converter

Converts between IPv4 and IPv6 addresses using the RFC 6052 standard for IPv4-embedded IPv6 addresses, commonly used in NAT64 scenarios.

MAC Tools

Extract MAC addresses from SLAAC (Stateless Address Autoconfiguration) IPv6 addresses or generate link-local IPv6 addresses from MAC addresses.

Reverse DNS

Generate ip6.arpa reverse DNS PTR records for IPv6 addresses, essential for DNS configuration and email server setup.

Based on ipv6utils by buraglio