[Linphone-users]Liphone - SER set-up over IPv6

[Vangelis Bouzianis]

Hallo

I am a Linphone newbie, trying to make up  a test-bed IPv6 network with VoIP 
functionality. My current set-up is 3 Linux boxes (Red Hat 9.0) with dual 
stacks (IPv4 addresses from our intranet's DHCP and IPv6 ones manually 
allocated within the test range 3ffe:aaaa:bbbb:cccc::1/2/3). The machine 
ending in ....::1 runs an IPv6 enabled SER proxy server, and each of the 
machines runs Linphone 0.11.0.

Though when I run Linphone on my SER server machine the configuration panel 
comes up with full information about my network connectivity (whereby I can 
choose my IPv6 address to use), when I run Linphone on the other two 
machines only the IPv4 addresses come up in the list. I've tried repeatedly 
to find out what are the differences between the machines' set-up but up to 
now everything seems identical.

Hence I was wondering what Linphone actually uses to detect the network 
addresses of the machine that it provides as choices in the configuration 
panel. Does it look them up in /etc/hosts? Does it probe for  active 
interfaces? Is there some line in the .gnome2/linphone file that can force 
Linphone to only use IPv6?

The funny thing is that as it is now, my Linphone clients register 
successfully with the SER server using IPv6 packets to communicate to it (I 
enter the SER server's IPv6 address with [..] in the configuration panel and 
then I check the registration messages also with #tcpdump ip6) but they 
register their contact address in IPv4!

Any help appreciated, thanks

Vangelis

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