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> It is recommended to place IPv4 and IPv6 addresses into brackets:

I tried doing this, and my brower(s) just assumed it was a search string, and took me to my search engine. Does that mean they're not following the RFC? (section 3.2.2 of RFC3896) Should I file a bug with Mozilla?

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The post is incorrect, only IPv6 addresses are meant to be put in brackets.

You are correct, reading the RFC just a little further than my ctrl+f found:

> A host identified by an Internet Protocol literal address, version 6 [RFC3513] or later, is distinguished by enclosing the IP literal within square brackets ("[" and "]").

And in that case, the square brackets are not only recommended; they are required.

Author here; you guys are right! - I've corrected it. Thank you

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