Hi,
Have you disabled WiFI, which must be disabled for ipv4 or ipv6 to work on tmo network. Are the scripts executable / did you set the correct permissions on the enable/disable scripts?

1) disabled WIFI

2) rechecked the scripts are executable
-rwxrwxrwx 1 root root 3030 Aug 24 22:52 00_enable_apn_ipv6
-rwxrwxrwx 1 root root 1221 Aug 24 21:41 00_disable_apn_ipv6

3) but I find myself lost in the permissions:

# Only enter the script if the opening connection type is GPRS
if [ $ICD_CONNECTION_TYPE ]; then
if [ $ICD_CONNECTION_TYPE == "GPRS" ]; then

### IPv4 APN value to hook up when activating IPv6 APN ###
MY_IPv4_APN="internet3.voicestream.com"

### IPv6 APN value ###
MY_IPv6_APN="ccinternet2.t-mobile.com"

### IPv6 APN username ###
MY_IPv6_USERNAME=

### IPv6 APN password ###
MY_IPv6_PASSWORD=


Yes, I feel kinda stoopid...Thanks again for your patience!

I have a package to make v6 setup a little easier at:
http://code.google.com/p/n900ipv6/wiki/README

This will give you a v6-only connection option (and leaves your v4-only connection alone). I've been using it for a week now, and the only thing I've run into is MSN is broken (known problem with the MSN protocol).

Please let me know if you have any questions.

Check your normal connection, mine is internet2.voicestream.com. Is yours really internet3?

internet2.voicestream did it (d'oh!). swimming turtle, yay!

thanks for the help guys!

@ddrown

Any advantage to using a ipv6 only connection vs the ipv4/ipv6 connection?

Quoting blurtit.com

Following are some of the advantage of IPv6 over IPv4;
1. Larger Address Space: address filed in IPv6 is 128 bits long while the address filed of IPv4 is only 32 bits in length. IPv6 offers very large, i.e.296 address space as compared to IPv4.

2. Better header format: the header of IPv6 has been designed in a way to speed-up the routing process. In header of IPv6 options are separated from the base header. Options are inserted into base header only when required by the upper-layer data.

3. Provision for extension: IPv6 has been designed in a way that a protocol can be extended easily to meet the requirements of emerging technologies or new applications.

4. Resource Allocation support in IPv6: IPv6 provides a mechanism called Flow Label for resource allocation. Flow label enables source to send request for the special handling of a packet. This mechanism is really helpful in real-time audio and video transmission.

5. Security Features: to ensure confidentiality and packet's integrity encryption and authentication options are included in IPv6."

edit: oops, re-read your question, ipv6 only vs ipv4/ipv6; maybe i should start paying more attention to detail...

Thanks for the info, although not quite what I was looking for, but interesting anyway.

If anyone feels like testing your IPv6 knowledge, have a go at http://ipv6.he.net/certification/, it's quite fun :-)

Currently stuck at guru level because my registrar doesn't support IPv6 glue records yet...

Using v4+v6 actually opens two PDP contexts through the provider's network. Since they pay for their equipment on a per-context basis, they would rather you have only one at a time. I was getting kicked off regularly when I had v4+v6 setup, but I'm not sure if it was some automated process on tmobile's side or something else. I'd be interested to hear how everyone else's connection reliability fairs when using v4+v6.