# Using Nginx Proxy Pss IPv4 to IPv6 Problem

**URL:** <https://www.ruby-forum.com/t/using-nginx-proxy-pss-ipv4-to-ipv6-problem/200149>\
**Category:** NGINX\
**Created:** [December 6, 2010, 7:28am UTC](https://www.ruby-forum.com/t/using-nginx-proxy-pss-ipv4-to-ipv6-problem/200149 "2010-12-06T07:28:08Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Dobai-Pataky\_BSSSSl](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/d/77aa72/32.png) [@Dobai-Pataky\_BSSSSl](https://www.ruby-forum.com/u/Dobai-Pataky_BSSSSl)\
**Post date:** [December 6, 2010, 7:28am UTC](https://www.ruby-forum.com/t/using-nginx-proxy-pss-ipv4-to-ipv6-problem/200149/1 "2010-12-06T07:28:08Z")

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When do I use nginx reverse proxy to proxy from an IPv4 network to an  
IPv6 network, I used the following configuration file:

upstream ipv6server {  
server [2001:: 1];  
server [2001:: 2];  
}  
location / {  
proxy\_pass [http://ipv6server](http://ipv6server);  
}

Nginx can start normally, but the start time, when I gave when the HTTP  
request, Nginx’s CPU usage is particularly high, almost 100%, do not  
know why.

I think the current code should support Nginx of IPv4 to IPv6 proxy it,  
do not know how to configure for normal use it? Thank you.

Posted at Nginx Forum:

> **[Using Nginx Proxy Pss IPv4 to IPv6 Problem](https://forum.nginx.org/read.php?2,155900,155900#msg-155900)**
>
> When do I use nginx reverse proxy to proxy from an IPv4 network to an IPv6 network, I used the following configuration file: upstream ipv6server { server \[2001:: 1\]; server \[2001:: 2\]; } location / { proxy\_pass http://ipv6server; }

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**Author:** ![wuweixin](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/w/c89c15/32.png) [@wuweixin](https://www.ruby-forum.com/u/wuweixin)\
**Post date:** [December 6, 2010, 1:13pm UTC](https://www.ruby-forum.com/t/using-nginx-proxy-pss-ipv4-to-ipv6-problem/200149/2 "2010-12-06T13:13:09Z")

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Hello!

On Mon, Dec 06, 2010 at 01:26:31AM -0500, wuweixin wrote:

> Nginx can start normally, but the start time, when I gave when the HTTP  
> request, Nginx’s CPU usage is particularly high, almost 100%, do not  
> know why.
> 
> I think the current code should support Nginx of IPv4 to IPv6 proxy it,  
> do not know how to configure for normal use it? Thank you.

Proxy to ipv6 isn’t currently supported.

Maxim D.

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**Author:** ![wuweixin](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/w/c89c15/32.png) [@wuweixin](https://www.ruby-forum.com/u/wuweixin)\
**Post date:** [September 13, 2011, 2:49pm UTC](https://www.ruby-forum.com/t/using-nginx-proxy-pss-ipv4-to-ipv6-problem/200149/3 "2011-09-13T14:49:19Z")

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Hello,

has anything changed at this topic? Is IPv6 now available for the proxy  
module?

I need this feature too, and, if not available, i’m wondering why, i  
think it would be very useful.

Best regards  
Matthias

Posted at Nginx Forum:

> **[Re: Using Nginx Proxy Pss IPv4 to IPv6 Problem](https://forum.nginx.org/read.php?2,155900,215154#msg-215154)**
>
> When do I use nginx reverse proxy to proxy from an IPv4 network to an IPv6 network, I used the following configuration file: upstream ipv6server { server \[2001:: 1\]; server \[2001:: 2\]; } location / { proxy\_pass http://ipv6server; }