RE: 3gpp-analysis: Recommendation on tunneling in the UE

["Karim El-Malki (HF/EAB)" <karim.el-malki@ericsson.com>]

 > trying to catch up this interesting discussion and making 
 > some kind of summary:
 > - not needing to refer to Unman scenarios&analysis
 > - Karim provides text on tunneling (to be updated to revision -08)
 > - Pekka's concerns on ISATAP providing more features than we 
 > need => in that case, we should document which parts of 
 > ISATAP are necessary for the 3GPP case, i.e. making a 
 > "subset of ISATAP" may be the solution? Shall you, Karim, 
 > also consider this point when writing your text?

Makes sense. I will review the latest spec (draft-16) and do that
but I think it does not contain those extra features.

 > 
 > Furthermore, I personally don't believe that configured 
 > tunnels make a feasible solution for this specific problem 
 > (even though they provide a good solution for some other 
 > scenarios). You must remember the high number of UEs and 
 > dynamic addressing. And any extra configuration effort isn't 
 > nice for the users. If you make the extra configurations 
 > using SMS (like configuring APN settings for different 
 > applications), that means one SMS more. The point is: IPv6 
 > should be as easy as possible.

Fully agree.

 > 
 > And still: we prefer native IPv6 communication and describe 
 > the "tunneling in the UE" as an *optional* thing (that won't 
 > be needed any more after GPRS networks start to widely 
 > support IPv6). That should not make harm to anybody.

Again agree.

 
 > P.S. All this discussion already shows to me that v6ops wg 
 > should start working on transition mechanisms. This wg needs 
 > to work on issues that are relevant for IPv6 deployment and 
 > that can help IPv6 getting deployed. Of course, the 
 > scenarios & analysis work is important, but we have done it 
 > already for so long time that we start to see which 
 > mechanisms are relevant (and which aren't). IMHO, getting 
 > ISATAP published as an RFC would be a good step towards that 
 > direction.

That is my opinion as well. We need to have stable specs for
implementation/deployment now that we are wrapping up the last
details on 3gpp analysis.

/Karim