Location Privacy (was Re: Outlawing (Avoiding) NAT with IPv6)

2003-04-02 Thread Greg Daley
Hi Alexandru, A quick HMIPv6 comment below. Alexandru Petrescu wrote: Brian E Carpenter wrote: If IPv6 has a better anonymity solution, can someone point me to it? Or do I have to start working on NATv6? (See, this is why I don't always want to identify myself! :-) See RFC 3041 - It does exa

Re: Location Privacy (was Re: Outlawing (Avoiding) NAT with IPv6)

2003-04-03 Thread Alexandru Petrescu
Hi Greg, Greg Daley wrote: There is no problem with the RCoA and LCoA differing only in prefix if the LCoA and RCoA are based on RFC3041 addresses. A-ha, that sounds like a tangible goal. I mean there is a big if in your phrasing. I still need to understand how this would work in practice (answ

Re: Location Privacy (was Re: Outlawing (Avoiding) NAT with IPv6)

2003-04-03 Thread Alper Yegin
> Alper Yegin wrote: >> I don't quite understand this... All CN knows is the RCoA of the >> MN. Only LCoA can reveal the location of the MN within the network. >> And CN cannot figure out LCoA by looking at RCoA. > > What's the difference between a RCoA and a LCoA of a same MN? In my > understa

Re: Location Privacy (was Re: Outlawing (Avoiding) NAT with IPv6)

2003-04-03 Thread Greg Daley
Hi Alper, Just a quick note. Alper Yegin wrote: [much text cut] To me, there are some common points, but there are also huge differences. I'm thinking about in NAT there is a specific set of types of addresses (the not publicly-routable) that can be reused by any site at will. However, with HMI

Re: Location Privacy (was Re: Outlawing (Avoiding) NAT with IPv6)

2003-04-04 Thread Alexandru Petrescu
Hi Alper, Greg. I'm not flaming, and not try to generate any heat :-) Greg Daley wrote: That's right. This gives the option to use LCoA with a CN if MN wants to. So, location privacy is an optional feature for MN to use, unlike with the NATs. Actually, I think that MN can decide about its use o

Re: Location Privacy (was Re: Outlawing (Avoiding) NAT with IPv6)

2003-04-04 Thread Alper Yegin
Alex, > So, an idea is that the location privacy might be a problem, and that > Mobile IPv6 might offer a site-local-free solution for that problem, > and that HMIPv6 needs site locals in order to provide a solution to > that problem. This is not a correct conclusion. As I have explained earlier

Re: Location Privacy (was Re: Outlawing (Avoiding) NAT with IPv6)

2003-04-04 Thread Alexandru Petrescu
Alper, I tried to draw a logic conclusion from this: -I assumed LCoA and RCoA have same last 64 bits -I was countered that that is not absolutely necessary, and that rfc 3041 could be used. -I replied: yes, could, but it is not. -I was pointed that site-locals might be used too. -so I concluded. Th