Go IPv6 utilities

After spending some time with Python, I moved to Go, which seems to suit the way my brain works slightly better (make no mistake, I am still a poor developer). Keeping in line with the work done on this, I endeavored to re-write this in Golang, mostly because the subnet generation in python had some resource issues with large blocks.

And off I went. With the help of an LLM to get me past weird errors and inability to compile, the resulting code is surprisingly efficient and useful - available here

IPv6 Subnet Generator & RFC 6052 Converter

Current capabilities:

A command-line utility for IPv6 subnet generation and IPv4/IPv6 address translation using RFC 6052. The pre-compiled binary is compiled for Apple silicon, but since it’s go it can be run on pretty much anything with minimal resource footprint.

Features

• IPv6 Subnet Generation
  
  • Generate subnets from an IPv6 prefix.
    
  • Optionally limit output using -l flag.
• IPv4 ↔ RFC 6052 IPv6 Conversion
  
  • Convert IPv4 to a synthesized IPv6 address (-s IPv4).
    
  • Convert an RFC 6052 IPv6 address back to IPv4.
    
• Custom Prefix Support (-k)
  
  • Allows non-well-known prefixes.
• Decode MAC address from SLAAC address (-m)
  • Decode MAC addresses from non-privacy SLAAC addresses
• Decode link local addresses (-a)
  • Decode link local address to MAC, and MAC to link local —

Because why not, I also forked this and made a webified version that is available with essentially the same functionality here.