ipv6

javascript-ipv6

javascript-ipv6 is a library for manipulating IPv6 addresses in JavaScript:

var address = new v6.Address('2001:0:ce49:7601:e866:efff:62c3:fffe');
var teredo = address.teredo();

console.log(teredo.client4); // Prints "157.60.0.1"

Current functionality

• Parsing of most IPv6 notations
• Validity checking
• Decoding of the Teredo information in an address
• Whether one address is a valid subnet of another
• What special properties a given address has (multicast prefix, unique local address prefix, etc.)
• Number of subnets of a certain size in a given address
• Display methods
  • Hex, binary, and decimal
  • Canonical form
  • Correct form
  • IPv4-compatible (i.e. ::ffff:192.168.0.1)
• Works in node.js and the browser
• Unit tests with node.js and Vows

Future functionality

• Base 64/85 encoding?
• Reverse lookups? (Whether a domain name has IPv6 glue)

TODO

• Documentation