Re: Why do we still need IPv4 when we are migrating to IPv6...

2015-02-13 Thread Gert Doering
Hi, On Thu, Feb 12, 2015 at 02:37:09PM -0800, Erik Kline wrote: > Sure this potential Data Retention Directive will not be IPv6-specific > and somehow exempt IPv4? I read the original concern as "if they force DR on us, and we run a CGN, it will not be possible / too expensive / ... to log the NA

Re: Why do we still need IPv4 when we are migrating to IPv6...

2015-02-13 Thread S.P.Zeidler
Thus wrote Gert Doering (g...@space.net): > On Thu, Feb 12, 2015 at 02:37:09PM -0800, Erik Kline wrote: > > Sure this potential Data Retention Directive will not be IPv6-specific > > and somehow exempt IPv4? > > I read the original concern as "if they force DR on us, and we run a > CGN, it will n

Re: SV: Why do we still need IPv4 when we are migrating to IPv6...

2015-02-13 Thread Thomas Schäfer
Am 12.02.2015 um 19:59 schrieb Eric Vyncke (evyncke): Is it related to the paranoid option of blocking all inbound traffic? To mimick NAT44 ? I afraid so. Regarding to http://download.microsoft.com/download/A/C/4/AC4484B8-AA16-446F-86F8-BDFC498F8732/Xbox%20One%20Technical%20Details.docx "Ev

Re: Why do we still need IPv4 when we are migrating to IPv6...

2015-02-13 Thread Anfinsen, Ragnar
On 12.02.15, 22.53, "Tore Anderson" wrote: >There's a non-zero amount of end customers who *do* care about IPv6. >After all, you do have a opt-in service which several thousand of your >customers did actually opt in to - so it would seem to me that several >thousands of your own customers disag

Re: Why do we still need IPv4 when we are migrating to IPv6...

2015-02-13 Thread Anfinsen, Ragnar
On 12.02.15, 23.37, "Erik Kline" wrote: >> Appreciate your feedback, but as long as the majority of Norwegian >>content providers does not move on IPv6, including governmental sites, >>and the potential risk of the Norwegian government implementing some >>sort of Data Retention Directive, it

Re: Why do we still need IPv4 when we are migrating to IPv6...

2015-02-13 Thread Anfinsen, Ragnar
On 13.02.15, 10.03, "Gert Doering" wrote: >Hi, > >On Thu, Feb 12, 2015 at 02:37:09PM -0800, Erik Kline wrote: >> Sure this potential Data Retention Directive will not be IPv6-specific >> and somehow exempt IPv4? > >I read the original concern as "if they force DR on us, and we run a >CGN, it wi

Re: Why do we still need IPv4 when we are migrating to IPv6...

2015-02-13 Thread Richard Hartmann
On Fri, Feb 13, 2015 at 11:52 AM, Steinar H. Gunderson wrote: > On the contrary, it gives you a great single point to log everything. > I'm sure PST will be thrilled. Plus, "too expensive" is only a problem for the carriers, not for the vendors. Adding a way to dump the state of the CGN should b

Re: Re: Why do we still need IPv4 when we are migrating to IPv6...

2015-02-13 Thread Mikael Abrahamsson
On Fri, 13 Feb 2015, Thomas Schäfer wrote: and the practice in Germany to blocking all IPv6-inbound traffic the result is the problem for some gamers. So I guess applications should use the same technique as one does to traverse NAT44:s, ie both ends of the connection send packets to each ot

Re: Re: Why do we still need IPv4 when we are migrating to IPv6...

2015-02-13 Thread Richard Hartmann
On Fri, Feb 13, 2015 at 12:26 PM, Mikael Abrahamsson wrote: > so I guess clients need to try a few times and not listen to the (initial) > ICMP messages until the "hole" is open. That sounds slightly broken as well. Richard

Re: Re: Why do we still need IPv4 when we are migrating to IPv6...

2015-02-13 Thread Mikael Abrahamsson
On Fri, 13 Feb 2015, Richard Hartmann wrote: On Fri, Feb 13, 2015 at 12:26 PM, Mikael Abrahamsson wrote: so I guess clients need to try a few times and not listen to the (initial) ICMP messages until the "hole" is open. That sounds slightly broken as well. I agree. Do you have a better sug

Re: Re: Why do we still need IPv4 when we are migrating to IPv6...

2015-02-13 Thread Richard Hartmann
On Fri, Feb 13, 2015 at 12:32 PM, Mikael Abrahamsson wrote: > I agree. Do you have a better suggestion? Of course not. While I personally tend to DROP instead of REJECT, both are far from ideal in the real world. Richard

[request]: host a probe for v6 measurements

2015-02-13 Thread Bajpai, Vaibhav
Dear ipv6-ops, We are currently looking for volunteers with native IPv6 lines to help us in our v6 measurement research. 8<- Background We are interested in measuring IPv6 performance from home. As part of the LEONE project [1], we have developed measurement tests that compare performan

Re: Why do we still need IPv4 when we are migrating to IPv6...

2015-02-13 Thread Tore Anderson
* Anfinsen, Ragnar > On 12.02.15, 22.53, "Tore Anderson" wrote: > > >There's a non-zero amount of end customers who *do* care about IPv6. > >After all, you do have a opt-in service which several thousand of > >your customers did actually opt in to - so it would seem to me that > >several thousan

Re: Why do we still need IPv4 when we are migrating to IPv6...

2015-02-13 Thread Richard Hartmann
On Fri, Feb 13, 2015 at 1:38 PM, Tore Anderson wrote: > How to introduce it to existing customers, you might ask? Maybe just > ask them? Send an SMS saying 20% off your next bill if you give up your > IPv4 address (and enable IPv6?), pointing out it's not binding and can > be re-enabled at any tim

Re: Why do we still need IPv4 when we are migrating to IPv6...

2015-02-13 Thread Phil Mayers
On 13/02/15 11:26, Mikael Abrahamsson wrote: On Fri, 13 Feb 2015, Thomas Schäfer wrote: and the practice in Germany to blocking all IPv6-inbound traffic the result is the problem for some gamers. So I guess applications should use the same technique as one does to traverse NAT44:s, ie both en

Re: Why do we still need IPv4 when we are migrating to IPv6...

2015-02-13 Thread Mikael Abrahamsson
On Fri, 13 Feb 2015, Phil Mayers wrote: None of this should be a problem for non-NATed IPv6. The absence of NAT will mean an ICMP error doesn't "block" a NAT translation - there's no such thing to block - so a CPE can send errors or not. Ah, thanks for pointing that out. So currently there a

Re: Why do we still need IPv4 when we are migrating to IPv6...

2015-02-13 Thread Anfinsen, Ragnar
Tore, In an ideal world, all your statements are true, and for us who has been roaming the IPv6 forums and meetings the last year knows all this. However, the business side does not see it the same way we do, and that is something we all have to deal with and why we are moving so slowly. Reduc

Re: Why do we still need IPv4 when we are migrating to IPv6...

2015-02-13 Thread Phil Mayers
On 13/02/15 13:27, Mikael Abrahamsson wrote: Packet reaches HGW2, which has no flow state, and is dropped. ICMP error message might be created. In case of ICMP error message, U1 should ignore this. That's an application-layer issue. It all depends on how they're talking to the socket API. The

Re: Why do we still need IPv4 when we are migrating to IPv6...

2015-02-13 Thread Steinar H. Gunderson
On Fri, Feb 13, 2015 at 02:12:31PM +, Phil Mayers wrote: > As above, depends on how they're using the socket API. As a rule for > UDP connections, you actually have to put *more* work in to see ICMP > errors. It's certainly possible to ignore them. FWIW, at least on Linux, if you keep doing se

Re: Why do we still need IPv4 when we are migrating to IPv6...

2015-02-13 Thread Tore Anderson
* Anfinsen, Ragnar > My goal with my question was to find sensible arguments for keeping IPv4 > as a native service for now Maybe I'm being dense, but you seem to already have all the answers to this question yourself? For example: - «The cost/benefit of doing anything else than keeping IPv4 as

Re: Why do we still need IPv4 when we are migrating to IPv6...

2015-02-13 Thread Phil Mayers
On 13/02/15 14:22, Steinar H. Gunderson wrote: On Fri, Feb 13, 2015 at 02:12:31PM +, Phil Mayers wrote: As above, depends on how they're using the socket API. As a rule for UDP connections, you actually have to put *more* work in to see ICMP errors. It's certainly possible to ignore them.

Re: Why do we still need IPv4 when we are migrating to IPv6...

2015-02-13 Thread Thomas Schäfer
Why a discussion to drill the firewall with very tricky things? (it's sound to me like the same sh... stun and other legacy ipv4 horrors.) In my opinion the firewall should be configurable (unfortunately DTAG-speedport-series, including the hybrid-modell dsl/lte can't) by upnp or by the user.

Re: Why do we still need IPv4 when we are migrating to IPv6...

2015-02-13 Thread Anfinsen, Ragnar
On 13.02.15, 15.29, "Tore Anderson" wrote: >* Anfinsen, Ragnar > >> My goal with my question was to find sensible arguments for keeping >>IPv4 >> as a native service for now > >Maybe I'm being dense, but you seem to already have all the answers to >this question yourself? For example: > >- «T

Re: Why do we still need IPv4 when we are migrating to IPv6...

2015-02-13 Thread Phil Mayers
On 13/02/15 14:37, Thomas Schäfer wrote: Why a discussion to drill the firewall with very tricky things? (it's sound to me like the same sh... stun and other legacy ipv4 horrors.) In my opinion the firewall should be configurable (unfortunately DTAG-speedport-series, including the hybrid-model