Setting up IPv6 using SixXS Tunnel Broker on ScopTEL PBX

Using IPv6 on ScopTEL PBX

Even if your ISP isn’t handing out IPv6 addresses, doesn’t mean you can’t take advantage of IPv6 support. By utilizing a free tunnel broker, you can run an IPv6 enabled server on your existing IPv4 Internet connection and provide IPv6 connectivity to the rest of your network.

IPv6 is becoming a reality and ScopServ International now provides IPv6 support for ScopTEL PBX. In the following article we will explain how to configure your ScopTEL IP PBX server to use the new and improved IPv6 version of the IP protocol using an 6-in-4 tunnel to encapsulate IPv6 traffic over explicitly-configured IPv4 links.

How do I configure IPv6 networking under ScopTEL PBX ? We now support IPv6 out of box since Network Management module version 2.2.0.  All you have to do is follow instructions on this page.


SixXS IPv6 Tunnel Broker

SixXS IPv6 Tunnel

SixXS IPv6 Tunnel

SixXS (Six Access) is a free, non-profit, non-cost  IPv6 Tunnel Broker service for Local Internet Registries (LIR’s) and end-users.

tunnel broker is a service which provides a network tunnel. These tunnels can provide encapsulated connectivity over existing infrastructure to another infrastructure.

For more information about SixXS, please check




Requesting a Tunnel

You need a SixXS account and at least a tunnel and these can be freely requested from the SixXS website. You can  Sign up with a RIPE/ARIN/etc handle or by using the direct sign-up.

Once your account is verified, you will receive a confirmation by Email and you will need to login at the SixXS Home to request a tunnel.


IPv6 Tools

AICCU (Automatic IPv6 Connectivity Client Utility) is a popular cross-platform utility for automatically configuring an IPv6 tunnel. This client automatically gives one IPv6 connectivity without having to manually configure interfaces etc. We offer all required packages in ScopServ repositories.

This tool is now automatically installed with latest version of ScopTEL PBX packages.

If your server isn’t up-to-date, you must log into your server using WebGUI and click on Server -> Packages Manager -> Update Now. Alternatively, using an SSH  root access and type:


[note color=#ddd]scopserv_yum update[/note]


Configure IPv6 Tunnel on ScopTEL PBX

You must log into the ScopTEL PBX GUI, go on Network -> Configuration then enable the IPv6 support. On the IPv6 Tunnel, select SixXS and specify your username and password then click on Save.

Network Configuration -> IPv6 support

Network Configuration -> IPv6 support

Now you can Commit all configurations changes and enable the AICCU service from the ScopTEL PBX GUI from Network -> General -> Service Status.

Enable AICCU service

Enable AICCU service

Apply the changes and Commit the new configuration then Restart network service.

Test your IPv6 connection

Verify your configuration by pinging IPv6 enabled site such as

[note color=#ddd]ping6[/note]

Traces path to a network host, enter:

[note color=#ddd]traceroute6[/note]

Print default IPv6 routing table, enter:

[note color=#ddd]route -n -A inet6[/note]


What next ?

In this article, we explain how to configure the ScopTEL PBX Telephony module to route SIP traffic over IPv6 for any Extensions and VoIP Accounts.