Help Get User's Real IP

[borinet]

Hello.

I'm using cloudflare.
Something went wrong. The user's IP is not correct.
Is it possible to get the user's Real IP?

 

[BruT]

thats pc ip in the inner network

Edited January 21, 2023 by BruT

[Nightw0lf]

quick answer is no

quick explanation is that cloudflare believes and supports that ipv6 ips should be used instead because ipv4 ip's are ending, so they allow you to use ipv4 only on paid plans

hence the reason they use dummy ip's for your visitors also another reason is that you have this conflict since l2 is not recognizing ipv6

 

[BruT]

1 hour ago, Nightw0lf said:

quick answer is no

quick explanation is that cloudflare believes and supports that ipv6 ips should be used instead because ipv4 ip's are ending, so they allow you to use ipv4 only on paid plans

hence the reason they use dummy ip's for your visitors also another reason is that you have this conflict since l2 is not recognizing ipv6

 

did i say something incorrect?

Edited January 22, 2023 by BruT

[Berserkd]

9 hours ago, BruT said:

did i say something incorrect?

yup that's not private IP, that's public ipv4 but as @Nightw0lf said it seems to be some kind of dummy cloudflare ipv4 address

Edited January 22, 2023 by Berserkd

[BruT]

52 minutes ago, Berserkd said:

yup that's not private IP, that's public ipv4 but as @Nightw0lf said it seems to be some kind of dummy cloudflare ipv4 address

the client usually sends a trace and 172 starting ips are usually private network ips, maybe i am wrong idk

Edited January 22, 2023 by BruT

[Nightw0lf]

[Berserkd]

On 1/22/2023 at 7:39 AM, BruT said:

the client usually sends a trace and 172 starting ips are usually private network ips, maybe i am wrong idk

 

No, maybe you're getting confused with the 192.* starting IPs, that octet is reserved for LAN as far as I remember ^^

[borinet]

Can I get the ip using httpservletrequest?

or

Servlet

	String externalIp = "127.0.0.1";
	try
	{
		final URL autoIp = new URL("http://ip1.dynupdate.no-ip.com:8245/");
		try (BufferedReader in = new BufferedReader(new InputStreamReader(autoIp.openStream())))
		{
			externalIp = in.readLine();
		}
	}
	catch (IOException e)
	{
	}
	player.sendMessage("Your IP address is " + externalIp);

I tried this. But this outputted the server's ip.

Is it possible to outputted the user's ip?