On Wed, Apr 16, 2008 at 2:29 PM, Andre-John Mas <[EMAIL PROTECTED]> wrote: > Hi, > > I am currently experimenting with IPv6 and I am curious to know whether > anyone has looked at the various elements of XMPP to see whether they would > break if using IPv6 address and transport? > > Additonally has anyone actually tried any of the servers on an IPv6 > network?
Yes, few years ago I did it for an institution managing the network of the public administration in my region. Mainly it's all about DNS and libraries, there is no protocol related issue as far as I know. DNS must correctly map host names to IPv6 addresses and handle SRV records as well, but that is just a problem of configuration. The only problem we found was about clients and software libraries that sometimes have ipv6 support turned off by default (for example I remember that I had to recompile psi for all the platforms and do minor fixes in order to correctly handle ipv6 addresses). There may be also a more general problem of UI, since many clients and configuration tools allowing you to directly specify connection addresses have input fields accepting only IPv4 addresses. Finally the biggest problem I see is about voip and direct stream. If it is true that IPv6 can resolve the problem of NAT (though I don't be on this, since we will always have firewalls), on the other hand IPv6 may introduce some issues about multihoming, adding several addresses to the network intercase without supplying any means to the application for discovering which is the correct one to use. -- Fabio Forno, Ph.D. Bluendo srl http://www.bluendo.com jabber id: [EMAIL PROTECTED]
