nanog mailing list archives
RE: Falling for address collection (Was: Evil Bit and Spread Spectrum IP Addressing - NANOG Source Address Shaping)
From: Leigh Porter <leigh.porter () ukbroadband com>
Date: Mon, 5 Mar 2012 10:59:28 +0000
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 On Sun, Mar 04, 2012 at 10:22:15AM -0600, Guru NANOG wrote:Common Misconception: One additional bit of IPv4 Addressing willsolveworld 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 sothereare 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 =; ______________________________________________________________________ This email has been scanned by the Symantec Email Security.cloud service. For more information please visit http://www.symanteccloud.com ______________________________________________________________________
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Current thread:
- Evil Bit and Spread Spectrum IP Addressing - NANOG Source Address Shaping Guru NANOG (Mar 04)
- Re: Evil Bit and Spread Spectrum IP Addressing - NANOG Source Address Shaping Paul Graydon (Mar 04)
- Re: Evil Bit and Spread Spectrum IP Addressing - NANOG Source Address Shaping Elle Plato (Mar 04)
- Falling for address collection (Was: Evil Bit and Spread Spectrum IP Addressing - NANOG Source Address Shaping) Jason Hellenthal (Mar 04)
- RE: Falling for address collection (Was: Evil Bit and Spread Spectrum IP Addressing - NANOG Source Address Shaping) Leigh Porter (Mar 05)