odd IP address

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nhseacoast
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odd IP address

Post by nhseacoast »

Had a new user register today with an IP like this:


2601:188:c404:5d20:901b:16df:a2d0:a661

No whois info. Anyone know what this is?

Edit:

Just noticed lots of "Back Trace" email errors in the log. This has been happening for a 3 weeks now. Could this have anything to do with CloudFlare?

Also, when i tried to activate a new user with that IP address, the user disappeard.

Actually had 2 new users today with the screwy IP address.

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3Di
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Re: odd IP address

Post by 3Di »

Those are IPv6 adresses

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nhseacoast
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Re: odd IP address

Post by nhseacoast »

Thats beyond me...its a normal thing?

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3Di
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Re: odd IP address

Post by 3Di »

phpBB is capable to handle IPv6 addresses out of the box.
You are using CF I see, you can see if completely disabling it will solve your issues.

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EA117
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Re: odd IP address

Post by EA117 »

nhseacoast wrote:
Sun May 10, 2020 3:03 am
Thats beyond me...its a normal thing?
It is normal, yes. We are all "eventually going to be using IPv6 addresses", because the number of things the growing world wants to connect exceeds the IPv4 address space.

It's fair to say "it can be somewhat rare to see IPv6" on a public web server though, because we've been very successful in efforts to conserve and re-use IPv4 address space. But there is nothing "wrong" when you do see IPv6.

I believe John Conner or someone mentioned that you can actually turn off IPv6 support in Cloudflare, so that their proxies will only connect using IPv4 addresses. Not that this "solves" anything to my knowledge, except if perhaps your web application didn't support anything but IPv4.

But as 3Di confirmed, in this case your application (phpBB) supports IPv6 by default, and has for a while. You're just finally seeing "a visitor from the future" who is actually using it.

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nhseacoast
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Re: odd IP address

Post by nhseacoast »

Thank you for the education. Very well explained.

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thecoalman
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Re: odd IP address

Post by thecoalman »

nhseacoast wrote:
Sat May 09, 2020 10:09 pm
Just noticed lots of "Back Trace" email errors in the log. This has been happening for a 3 weeks now. Could this have anything to do with CloudFlare?
No. Clouflare has nothing to do with execution of code on your server. Check the server error logs as they can usually provide more precise information of what the error is.
“Results! Why, man, I have gotten a lot of results! I have found several thousand things that won’t work.”

Attributed - Thomas Edison

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