How can you express native IPv6 addresses in URLs?
What will be an ideal response?
RFC 2732 (originally proposed in 1999) describes a method to express IPv6 addresses in a form compatible with HTTP URLs. Because the colon character (:) is used by most browsers to set off a port number from an IPv4 address, native IPv6 addresses in their ordinary notation would cause problems. This RFC uses another pair of reserved characters, the square brackets ([ and ]), to enclose a literal IPv6 address. The RFC indicates that these square bracket characters are reserved in URLs exclusively for expressing IPv6 addresses. This RFC is now a standard, which means that this syntax represents the official format for expressing IPv6 addresses inside URLs.
Thus, an HTTP service available at port 70 of IPv6 address FEDC:BA98:7654:3210:FEDC:BA98:7654:3210 should be denoted as http://[FEDC:BA98:7654:3210:FEDC:BA98:7654:3210]:70/ (in literal form).
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