Making an IPv6 URLRequest

Casey Liss:

I’m trying to make a URL GET request to a service I’m discovering via Bonjour.

I have gotten a NWBrowser.Result, and I’ve gotten an NWEndpoint.

The endpoint is an IPv6 link local address.

How the hell do I make a URLRequest to this? I don’t seem to be able to construct a URL from what I’ve got, but I suspect I’m holding it wrong.

[…]

Wait, it seems the presence of “%en0” at the end may be the problem?

Greg Thompson:

In a browser you would enter an IPV6 address like this: https://[XXXXXIPV6ADDRESS]/index.html

Andreas Hartl:

my reading of RFC 6874 is that you must percent-escape the %: http://[<IPv6address>%25<zoneID>]

Jira Burnout Chart:

TIL about encoding a desired network interface as part of the host name into a URL

It’s interesting that he asked on Mastodon rather than on Stack Overflow.

See also:

• The world in which IPv6 was a good design (via Hacker News)
• The IPv6 mess (via Hacker News)

Previously:

• The Mess at Stack Overflow
• The Monkey and the Apple
• Roku Doesn’t Support IPv6
• North America Out of New IPv4 Addresses

Bonjour iOS iOS 16 Mac macOS 13 Ventura Mastodon Networking Programming Stack Overflow URL

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