What's the point of " ipv6v6only" attribute. The doc says :
"If listening on an IPv6 address on a dual stack system, should the connector 
only listen on the IPv6 address? If not specified the default is false and the 
connector will listen on the IPv6 address and the equivalent IPv4 address if 
present. "

So if I set address to "::1" and " ipv6v6only" is left to its default, 
shouldn’t, the connector listen to both the addresses.


-----Original Message-----
From: Martin Grigorov <mgrigo...@apache.org> 
Sent: Tuesday, March 10, 2020 8:14 PM
To: Tomcat Users List <users@tomcat.apache.org>
Subject: Re: bind Tomcat to IPv4 and IPv6 loopback, Tomcat 9.0.31

On Tue, Mar 10, 2020 at 3:56 PM Christopher Schultz < 
ch...@christopherschultz.net> wrote:

> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA256
>
> Martin,
>
> On 3/10/20 04:43, Martin Grigorov wrote:
> > We can define custom address like "loopback" for which Tomcat will 
> > bind on both "127.0.0.1" and "::1" depending on the values of 
> > java.net.preferIPv4Stack and java.net.preferIPv6Addresses, but I am 
> > not sure whether it is worth it
> This is kind of an interesting suggestion, as would maybe supporting 
> "all" as an alias for both 0.0.0.0 and :: together (the old default 
> behavior, which is no longer possible with a single <Connector>).
>
> Are there any examples of these kinds of things in other products, or 
> does everyone just manually define two separate connector-like entities?
>
> httpd just does:
>
>   Listen 0.0.0.0
>   Listen ::
>
> Which is pretty simple. Tomcat's <Connector> configuration is a lot 
> more verbose and so repeating it is doubly so.
>

Another option is to make "address" attribute multi valued, e.g.
comma/space separated.

Martin


>
> - -chris
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