HIJACKED: AS18466, courtesy of Global Crossing (AS3549)

2011-05-20 Thread Ronald F. Guilmette
Abundant evidence indicates that AS18466, allocated by LACNIC, has been hijacked. All of the routes currently announced by this AS, i.e.: 170.25.0.0/19 170.25.32.0/19 170.25.160.0/19 170.25.192.0/19 are currently routing IP blocks, also allocated by LACNIC, which have also

Re: corporations using BGP for advertising prefixes in mid-1990s

2011-05-20 Thread John Payne
On May 12, 2011, at 8:31 PM, Roy wrote: On 5/12/2011 4:03 PM, George Herbert wrote: Large end-user companies generally multihomed by that time, and you generally did that by BGP4 at the time (post-1994), and before that BGP3, and before that EGP, and before that... well, there was

Re: Had an idea - looking for a math buff to tell me if it's possible with today's technology.

2011-05-20 Thread Eu-Ming Lee
To do this, you only need 2 numbers: the nth digit of pi and the number of digits. Simply convert your message into a single extremely long integer. Somewhere, in the digits of pi, you will find a matching series of digits the same as your integer! Decompressing the number is relatively easy

Re: Had an idea - looking for a math buff to tell me if it's possible?with today's technology.

2011-05-20 Thread Brett Frankenberger
On Fri, May 20, 2011 at 06:46:45PM +, Eu-Ming Lee wrote: To do this, you only need 2 numbers: the nth digit of pi and the number of digits. Simply convert your message into a single extremely long integer. Somewhere, in the digits of pi, you will find a matching series of digits the

Re: Had an idea - looking for a math buff to tell me if it's possible?with today's technology.

2011-05-20 Thread Paul Graydon
On 05/20/2011 08:53 AM, Brett Frankenberger wrote: On Fri, May 20, 2011 at 06:46:45PM +, Eu-Ming Lee wrote: To do this, you only need 2 numbers: the nth digit of pi and the number of digits. Simply convert your message into a single extremely long integer. Somewhere, in the digits of pi,

Re: Had an idea - looking for a math buff to tell me if it's possible?with today's technology.

2011-05-20 Thread Ken Chase
On Fri, May 20, 2011 at 09:34:59AM -1000, Paul Graydon said: Not quite sure I follow that. Start at position xyz, carry on for 1 bits shouldn't be as long as telling it all 1 bits? what position # do you think your exact 1 bits will appear at? (infact, mathies, whats the

Re: Had an idea - looking for a math buff to tell me if it's possible with today's technology.

2011-05-20 Thread mikea
On Fri, May 20, 2011 at 09:34:59AM -1000, Paul Graydon wrote: On 05/20/2011 08:53 AM, Brett Frankenberger wrote: On Fri, May 20, 2011 at 06:46:45PM +, Eu-Ming Lee wrote: To do this, you only need 2 numbers: the nth digit of pi and the number of digits. Simply convert your message into a

Re: Had an idea - looking for a math buff to tell me if it's possible?with today's technology.

2011-05-20 Thread Valdis . Kletnieks
On Fri, 20 May 2011 09:34:59 -1000, Paul Graydon said: Not quite sure I follow that. Start at position xyz, carry on for 1 bits shouldn't be as long as telling it all 1 bits? The problem is that the length of 'xyz' will probably be on the same order of magnitude as the length of your

Re: Had an idea - looking for a math buff to tell me if it's possible?with today's technology.

2011-05-20 Thread Paul Timmins
On 05/20/2011 03:34 PM, Paul Graydon wrote: On 05/20/2011 08:53 AM, Brett Frankenberger wrote: Even if those problems were solved, you'd need (on average) just as many bits to represent which digit of pi to start with as you'd need to represent the original message. -- Brett Not quite

Re: Had an idea - looking for a math buff to tell me if it's possible?with today's technology.

2011-05-20 Thread Sudeep Khuraijam
I could not help but admire nanog in its full form ;) and I cannot resist anymore. Allow me to suggest the EPR paradox machine. The cost of regenerating unpredictable information is inefficient by orders of magnitude, but wait... isn't it what we are trying to solve? On May 20, 2011, at

BGP Update Report

2011-05-20 Thread cidr-report
BGP Update Report Interval: 12-May-11 -to- 19-May-11 (7 days) Observation Point: BGP Peering with AS131072 TOP 20 Unstable Origin AS Rank ASNUpds % Upds/PfxAS-Name 1 - AS982943670 3.4% 63.8 -- BSNL-NIB National Internet Backbone 2 - AS17974

The Cidr Report

2011-05-20 Thread cidr-report
This report has been generated at Fri May 20 21:12:21 2011 AEST. The report analyses the BGP Routing Table of AS2.0 router and generates a report on aggregation potential within the table. Check http://www.cidr-report.org for a current version of this report. Recent Table History Date

Re: Had an idea - looking for a math buff to tell me if it's possible?with today's technology.

2011-05-20 Thread Doug Barton
On 5/20/2011 12:44 PM, Ken Chase wrote: On Fri, May 20, 2011 at 09:34:59AM -1000, Paul Graydon said: Not quite sure I follow that. Start at position xyz, carry on for 1 bits shouldn't be as long as telling it all 1 bits? what position # do you think your exact 1 bits will appear

Re: Need the perspective of a Level3 customer.

2011-05-20 Thread Joe Renwick
Thanks for all who assisted me on this issue. Was invaluable to get router output from all over the country. Bottom line Level3 had some issues with poking a whole in there summarization filters. Appeared that the problem was only with peers connected to the HSA1 and HSA2 routers in San Diego.