[stunnel-users] Stunnel v4.25 support for IPv6

Bansal, Gaurav (Gaurav) gbansal at avaya.com
Mon May 18 10:33:31 CEST 2009

Thanks for the response. I got answer to my queries. 

When you say "IPv6-enabled stunnel", do you mean that we need to provide
parameter "IPV6=on", during compile time. Is there any other parameter
that we need to provide? 

Is the support for IPv6 not turned on by default?

Is there any other configuration required for OpenSSL?

Thanks, Gaurav

-----Original Message-----
From: stunnel-users-bounces at mirt.net
[mailto:stunnel-users-bounces at mirt.net] On Behalf Of Michal Trojnara
Sent: Monday, May 18, 2009 1:36 PM
To: stunnel-users at mirt.net
Subject: Re: [stunnel-users] Stunnel v4.25 support for IPv6

Bansal, Gaurav (Gaurav) wrote:
> We need to support dual stack support for IPv6 and IPv4. We are
> currently using stunnel v4.25 to encrypt traffic between mod_jk
> connector and JBoss Application server. So one node in a cluster can
> a IPv4 machine and other can have IPv6 address.
> We would like to know if stunnel v4.25 supports both IPv4 and IPv6
> setup. 

IPv6-enabled stunnel gracefully handles both IPv4 and IPv6 addresses.
can accept connections on IPv4 and IPv6 addresses and your can connect
and IPv6 addresses without any special precautions.

> Is exclusive support for IPv6 available in stunnel v4.25?

I'm not sure I understand what you mean by "exclusive support for
If you only accept connections on an IPv6 address I guess you could say
"exclusively" support it.

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