Enabled ipv6. Now ipv4 IP's are logged differently

Server NGINX
1

Hi all,

I’ve enabled IPv6 support on my Nginx setup, but for some reason that
has changed the format in which IPv4 addresses are logged…

Before:
109.247.15.146

Now:
::ffff:109.247.15.146

Is this… a bug? a feature? Expected behaviour?

greetings,
Evert

Posted at Nginx Forum:

2

On Tue, May 29, 2012 at 9:15 AM, Evert [email protected] wrote:

Before:
109.247.15.146

Now:
::ffff:109.247.15.146

Is this… a bug? a feature? Expected behaviour?

See “dotted-quad notation”:

3

Thanks, Maxim. That solved my issues! :slight_smile:

(and a thanks to Tiberius for the info as well :slight_smile: )

Posted at Nginx Forum:

4

Hello!

On Tue, May 29, 2012 at 04:15:02AM -0400, Evert wrote:

Is this… a bug? a feature? Expected behaviour?

It looks like you’ve aren’t enabled ipv6 support, but completely
switched to ipv6 instead. And now you see all ipv4 connections as
ipv4-mapped ipv6 ones.

To preserve ipv4 as is use explicit listen sockets on ipv4 and
ipv6, i.e.

listen 80;
listen [::]:80 ipv6only=on;

(the “ipv6only=on” flag is required if your system by default
tries to handle both ipv6 and ipv4 with ipv6 sockets, and doesn’t
allow ipv4 socket to coexist with it; i.e. it’s required on most
Linux systems)

Maxim D.