Evil Bit and Spread Spectrum IP Addressing - NANOG Source Address Shaping
Common Misconception: One additional bit of IPv4 Addressing will solve world hunger The Evil Bit (or spare unused bit) can be used to store (restore) one bit The Left-Most bit of the 32-bit Source Address Field can be SET to Zero no matter what the original value. The Evil bit can be set IFF the Left-Most bit is **changed**. Setting the Left-Most bit to zero **folds** this table in half. http://www.iana.org/assignments/ipv4-address-space/ipv4-address-space.txt Setting the Left-Most bit to ONE would move return traffic to the upper half of the Spectrum which has vast quantities of unused /8s Wide-spread consensus shows that TWO bits can work. Three bits folds the table to 1/8th. Governments want a 4-bit Return Prefix to their Super-Hubs for IPv6-like intercept. The U.S.FCC is expected to issue the regulations on how Spread Spectrum Source Address Shaping will work in their licensed CPE wireless devices. There are 160-bits in the deprecated header so there are many ways to go. One-Way Broadcast IP Addressing is now available. The Source Address Field is used for the second half of the 64-bit Destination Address. The DF (Did Flip) bit near the Evil Bit is used to note the two halves of the Destination Address have been *flipped*. NANOGers simply route 32 and then 32 after the flip based only on the Destination Field. There is no Source Address, only a channel (port). Keywords: WRT DNSMASQ Tomato WIFI Linux CPE
... Great, that's another filter to add to my mailserver. Paul On 3/4/2012 6:22 AM, Guru NANOG wrote:
Common Misconception: One additional bit of IPv4 Addressing will solve world hunger
The Evil Bit (or spare unused bit) can be used to store (restore) one bit
The Left-Most bit of the 32-bit Source Address Field can be SET to Zero no matter what the original value. The Evil bit can be set IFF the Left-Most bit is **changed**.
Setting the Left-Most bit to zero **folds** this table in half. http://www.iana.org/assignments/ipv4-address-space/ipv4-address-space.txt
Setting the Left-Most bit to ONE would move return traffic to the upper half of the Spectrum which has vast quantities of unused /8s
Wide-spread consensus shows that TWO bits can work. Three bits folds the table to 1/8th. Governments want a 4-bit Return Prefix to their Super-Hubs for IPv6-like intercept.
The U.S.FCC is expected to issue the regulations on how Spread Spectrum Source Address Shaping will work in their licensed CPE wireless devices. There are 160-bits in the deprecated header so there are many ways to go.
One-Way Broadcast IP Addressing is now available. The Source Address Field is used for the second half of the 64-bit Destination Address. The DF (Did Flip) bit near the Evil Bit is used to note the two halves of the Destination Address have been *flipped*. NANOGers simply route 32 and then 32 after the flip based only on the Destination Field. There is no Source Address, only a channel (port).
Keywords: WRT DNSMASQ Tomato WIFI Linux CPE
On Sun, Mar 4, 2012 at 8:22 AM, Guru NANOG <nanog.guru@gmail.com> wrote:
Common Misconception: One additional bit of IPv4 Addressing will solve world hunger
Why not just fold source and destination into a single 64 bit end station address field, and use the evil bit to say whether or not the packet is going to, or coming from, google. We could call it IPv5, or IPv4++. and I am sure the merchants would have it in silicon within a week. Sadly this is a few weeks too early for people to be seriously thinking of an RFC for this. Elle Plato
Why does everyone keep falling for the same address collector ? ;-) -- LoL On Sun, Mar 04, 2012 at 10:22:15AM -0600, Guru NANOG wrote:
Common Misconception: One additional bit of IPv4 Addressing will solve world hunger
The Evil Bit (or spare unused bit) can be used to store (restore) one bit
The Left-Most bit of the 32-bit Source Address Field can be SET to Zero no matter what the original value. The Evil bit can be set IFF the Left-Most bit is **changed**.
Setting the Left-Most bit to zero **folds** this table in half. http://www.iana.org/assignments/ipv4-address-space/ipv4-address-space.txt
Setting the Left-Most bit to ONE would move return traffic to the upper half of the Spectrum which has vast quantities of unused /8s
Wide-spread consensus shows that TWO bits can work. Three bits folds the table to 1/8th. Governments want a 4-bit Return Prefix to their Super-Hubs for IPv6-like intercept.
The U.S.FCC is expected to issue the regulations on how Spread Spectrum Source Address Shaping will work in their licensed CPE wireless devices. There are 160-bits in the deprecated header so there are many ways to go.
One-Way Broadcast IP Addressing is now available. The Source Address Field is used for the second half of the 64-bit Destination Address. The DF (Did Flip) bit near the Evil Bit is used to note the two halves of the Destination Address have been *flipped*. NANOGers simply route 32 and then 32 after the flip based only on the Destination Field. There is no Source Address, only a channel (port).
Keywords: WRT DNSMASQ Tomato WIFI Linux CPE
-- ;s =;
I'm sorry but I have failed to understand the grammar of these bizarre posts. Is it just me or do they actually make very little sense? What is perhaps scary is that I know somebody who talks just like that (i.e. makes little sense) and I really thought it may be them... It isn't because they died last year, but still, who knows.. -- Leigh Porter
-----Original Message----- From: Jason Hellenthal [mailto:jhellenthal@dataix.net] Sent: 05 March 2012 03:27 To: nanog@nanog.org Subject: Falling for address collection (Was: Evil Bit and Spread Spectrum IP Addressing - NANOG Source Address Shaping)
Why does everyone keep falling for the same address collector ? ;-)
-- LoL
Common Misconception: One additional bit of IPv4 Addressing will solve world hunger
The Evil Bit (or spare unused bit) can be used to store (restore) one bit
The Left-Most bit of the 32-bit Source Address Field can be SET to Zero no matter what the original value. The Evil bit can be set IFF the Left-Most bit is **changed**.
Setting the Left-Most bit to zero **folds** this table in half. http://www.iana.org/assignments/ipv4-address-space/ipv4-address- space. txt
Setting the Left-Most bit to ONE would move return traffic to the upper half of the Spectrum which has vast quantities of unused /8s
Wide-spread consensus shows that TWO bits can work. Three bits folds the table to 1/8th. Governments want a 4-bit Return Prefix to their Super-Hubs for IPv6-like intercept.
The U.S.FCC is expected to issue the regulations on how Spread Spectrum Source Address Shaping will work in their licensed CPE wireless devices. There are 160-bits in the deprecated header so
On Sun, Mar 04, 2012 at 10:22:15AM -0600, Guru NANOG wrote: there
are many ways to go.
One-Way Broadcast IP Addressing is now available. The Source Address Field is used for the second half of the 64-bit Destination Address. The DF (Did Flip) bit near the Evil Bit is used to note the two halves of the Destination Address have been *flipped*. NANOGers simply route 32 and then 32 after the flip based only on the Destination Field. There is no Source Address, only a channel (port).
Keywords: WRT DNSMASQ Tomato WIFI Linux CPE
-- ;s =;
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----- Original Message -----
From: "Leigh Porter" <leigh.porter@ukbroadband.com>
I'm sorry but I have failed to understand the grammar of these bizarre posts. Is it just me or do they actually make very little sense?
UNaltered REPRODUCTION and DISSEMINATION of this IMPORTANT information is strongly ENCOURAGED. Cheers, -- jra -- Jay R. Ashworth Baylink jra@baylink.com Designer The Things I Think RFC 2100 Ashworth & Associates http://baylink.pitas.com 2000 Land Rover DII St Petersburg FL USA http://photo.imageinc.us +1 727 647 1274
participants (6)
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Elle Plato -
Guru NANOG -
Jason Hellenthal -
Jay Ashworth -
Leigh Porter -
Paul Graydon