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Using the 8-bit TOS field for Extended Addressing...

2002-09-10 17:24:18
----- Original Message ----- 
From: "Brian E Carpenter" <brian(_at_)hursley(_dot_)ibm(_dot_)com>
To: "Jason Gao" <jag(_at_)kinet(_dot_)com(_dot_)cn>
Cc: <ietf(_at_)ietf(_dot_)org>
Sent: Tuesday, September 10, 2002 9:59 AM
Subject: Re: Fuzzy-layering and its suggestion - Towards better QoS solution in 
the IPv6 network


Jason Gao wrote:
...
You don't get to pull a bit out for your private use.

It is still not a requirement that every node in the Internet must be 
DS-compliant.

These statements are both true. A node that chooses not to
implement RFC 2474 cannot use the TOS bits for private purposes.

   Brian


You seem to be confused about how the 32-bit, IPv4, end-to-end, Internet is 
defined.
You seem to be focused on nodes outside of the Internet, as opposed to the 
infrastructure
that creates what most people view as "the Internet".

From a user's point-of-view, the edge of the global, public, 32-bit, IPv4++ 
Internet
is defined as the collection of private companies and people, connected 
together, that
pass 160-bit headers with the **8-bit TOS field unchanged**. Those 8-bits can 
be used
to expand the addressing at the edges of that network, 4-bits are needed in 
each direction.
That expands the address space by adding 15 more Internets, as large as the 
legacy net.
That creates yet another layer or edge, composed of equipment that combines to 
make
people see 4 extended address bits, for a total of 36.

You can easily obtain code to do this, or help write more code to do it.

http://www.netfilter.org/
http://netfilter.samba.org
http://www.google.com/search?q=TOS+routing
http://www.google.com/search?q=packet+mangling

As for IPv6, one can not assume that the 128-bit DNS implies IPv6. As an 
example,
if you use a 2002 model year address, such as 2002:[IPv4]:* in the 128-bit DNS 
AAAA
records, your computer will likely generate IPv4 packet headers. A6 DNS records 
are
for IPv6. AAAA records work for IPv4++. Private companies and private 
individuals
are working together to define what goes in the AAAA records. You are FREE to
participate. Some private companies and closed societies may try to tell you 
that you are
not free to participate, but that is not the case. Even with tens of millions 
of dollars from
domain name sales and address space leasing, they will not be able to pull 
together enough
money to buy the freedom of all people on planet Earth. They may try...but, 
most people's
minds are not for sale.

Jim Fleming
2002:[IPv4]:000X:03DB:...IPv8 is closer than you think...IPv16 is even closer...
http://ipv8.dyndns.tv
http://ipv8.yi.org
http://ipv8.dyns.cx
http://ipv8.no-ip.com
http://ipv8.no-ip.org
http://ipv8.no-ip.biz
http://ipv8.no-ip.info
http://ipv8.myip.us
http://ipv8.dyn.ee
http://ipv8.community.net.au
http://www.iana.org/assignments/ipv4-address-space
http://www.ntia.doc.gov/ntiahome/domainname/130dftmail/unir.txt