Re: [Int-area] introducing a new IPv4 option [was RE: [BEHAVE] Revealing identity of TCP client connection when sharing IPv4 address]

[Bob Hinden <[e-mail]>]

Dan,

>>> No.  It's very likely only gotten work since the 2004 paper.
> 
> Off list, someone else suggested it had gotten better.  So I tested 
> the top sites from Alexa's list using NMAP, and results were:
> 
>  TCP 3-way handshake without IP option:  99% success
>  TCP 3-way handshake with IP option:      9% success
> 
> NMAP commands, input, and output are at:
>  http://www.employees.org/~dwing/ipoptions/
> 

It is much worse.  At the IP and Transport level functionality, the IPv4 Internet is essentially frozen somewhere in the 1990's.  Sad...  

Bob