This cropped up alst night in chat. Here is a transmission report over TCP/IP

Your mission, should you choose to accept it, is to guess what type of network connection this transmission test was performed on


Script started on Sat Apr 28 11:24:09 2001
inet addr:10.0.3.2 P-t-P:10.0.3.1 Mask:255.255.255.255
UP POINTOPOINT RUNNING NOARP MULTICAST MTU:150 Metric:1
RX packets:1 errors:0 dropped:0 overruns:0 frame:0
TX packets:2 errors:0 dropped:0 overruns:0 carrier:0
collisions:0
RX bytes:88 (88.0 b) TX bytes:168 (168.0 b)
vegard@gyversalen:~$ ping -i 900 10.0.3.1
PING 10.0.3.1 (10.0.3.1): 56 data bytes
64 bytes from 10.0.3.1: icmp_seq=0 ttl=255 time=6165731.1 ms
64 bytes from 10.0.3.1: icmp_seq=4 ttl=255 time=3211900.8 ms
64 bytes from 10.0.3.1: icmp_seq=2 ttl=255 time=5124922.8 ms
64 bytes from 10.0.3.1: icmp_seq=1 ttl=255 time=6388671.9 ms
--- 10.0.3.1 ping statistics ---
9 packets transmitted, 4 packets received, 55% packet loss
round-trip min/avg/max = 3211900.8/5222806.6/6388671.9 ms
vegard@gyversalen:~$ exit
Script done on Sat Apr 28 14:14:28 2001


No googling!

clue - check the time taken to arrive figures. Unusually long!

clue - it's a wireless connection.

Wireless??

Hmm, let me see...

AirDSL
MESH
WAP
Sattelite??

Can't think of any more...

I really should know this, Wireless Communications is one of my final year modules.

this is geeky it hurts :o

I know it! Absolutely fantastic!

im guessing a wireless???

Originally posted by Sidla
Wireless??

Hmm, let me see...

AirDSL
MESH
WAP
Sattelite??

Can't think of any more...

I really should know this, Wireless Communications is one of my final year modules.

:mrgreen: :mrgreen:

what wireless form of communication might take an hour or more (3,600,000ms)?

Not radio waves, unless they are of a new slow variety.

Think lo-tech

Was it to a submerged submarine?

Originally posted by Phanerothyme
what wireless form of communication might take an hour or more (3,600,000ms)?

Not radio waves, unless they are of a new slow variety.

Think lo-tech
Is this an existing technology or is it a hypothetical problem?

Pigeon post?

Originally posted by max
Pigeon post?
BINGO!

Look at this The RFC document (http://www.faqs.org/rfcs/rfc1149.html)

and this Homepage of the CPIP Working Group (http://www.blug.linux.no/rfc1149/)

CPIP = Carrier Pigeon Internet Protocol

My apologies for my post above Sidla but I had to laugh.

I only knew the answer as I cheated so it was unfair.

If I was doing a final year module thingy on Wireless Communications I would certainly try and include this :wink:

OK, I'm fairly certain that nothing will pop up about RFC1149 in any of my exams.

Although this might seem like a pretty wacky suggestion though, in theory it could be quite an efficient way of transmitting data. If you could find some device to store say 100GB of data and you put it on some sort of flying device and sent it to a location 1 hour away you would achieve an approximate transmission rate of 239Mbps. That's some bandwidth.

*rolls eyes*

Don't expect an answer from me, I wouldn't know where to start!

Originally posted by Sidla
OK, I'm fairly certain that nothing will pop up about RFC1149 in any of my exams.

Although this might seem like a pretty wacky suggestion though, in theory it could be quite an efficient way of transmitting data. If you could find some device to store say 100GB of data and you put it on some sort of flying device and sent it to a location 1 hour away you would achieve an approximate transmission rate of 239Mbps. That's some bandwidth.

Pretty astounding minimum packet size though.

Maybe we need to genetically engineer pigeons to understand maps, and automate the packet printing and leg affixing process too. Pigeons could then be told their destination and at the other end some unwrapping/reading device.

You can now get little buttons that store something like 64kb of data that can be read and written to wirelessly at short (a few metres) range. These passive devices could be attached to pigeons legs and would be much more effecient.

This method has been postulated for people although no RFC exists: pollination networks (http://216.239.59.104/search?q=cache:2962OlJmqq4J:www.eurescom.de/~pub/fusenetd/Meunier.pdf+pollen+network&hl=en&ie=UTF-8)

I just think it's great that 10 years ago a joker decided to write an RFC (request for comments - often a green paper for an internet related technology) proposing using racing pigeons to carry internet packets, and then the Bergen Linux User Group (a bunch of hairy geeks no less!) decide to implement and test it. Successfully!!

I give you a toast to Norwegians everywhere (and coming from a swede, that's something!)

Crikey you guys can read that!?? Groovy!! :D

Originally posted by Phanerothyme
I just think it's great that 10 years ago a joker decided to write an RFC (request for comments - often a green paper for an internet related technology) proposing using racing pigeons to carry internet packets, and then the Bergen Linux User Group (a bunch of hairy geeks no less!) decide to implement and test it. Successfully!!
It doesn't really surprise me though. There's so many people (like me, I might add) with far too much time on their hands to play about with stupid things like this. You only have to look at some of the crazy acronyms we use to see what a weird sense of humour some of us geeky people have.

This new protocol is all well and good, but how do you account for dropped packets or collisions?

Seems like a bit more work is needed before this takes off.
;)

Originally posted by mikey
This new protocol is all well and good, but how do you account for dropped packets or collisions?

Seems like a bit more work is needed before this takes off.
;)
Collisions are unlikely, unless you've got drunk pigeons!

You'd only get a dropped packet if the little cylinder fell off their legs!

A new geeky question. I think it's quite easy but then I'm a geek, so what is the non-geek opinion?

What website would you expect an address like this take you to and why?

http://www.lloydstsb.com:ac-x6LC0IQr2aBda1XBALgF@wgdoirk4.cJb.NeT/?LdZJtDpTt8z1elD

It comes from an email which was attempting to perpetrate a fraud and action has been taken to address the problem.

Originally posted by robh
A new geeky question. I think it's quite easy but then I'm a geek, so what is the non-geek opinion?

What website would you expect an address like this take you to and why?

http://www.lloydstsb.com:ac-x6LC0IQr2aBda1XBALgF@wgdoirk4.cJb.NeT/?LdZJtDpTt8z1elD

It comes from an email which was attempting to perpetrate a fraud and action has been taken to address the problem.

Ok, well it wants you to think it's Lloyds TSB obviously, hence the beginning, however the : at the end of lloydstsb.com arose my suspicions. I don't understand all the numbers but the real giveaway is the wgdoirk4.cjb.net because cjb.net is a place where you can get better URLs than the usual free ones. So I have a proper web address and also a geocities one so if I couldn't afford another proper one I could go to cjb.net and get pippa.cjb.net or something similar to redirect to my geocities one.
So the bit with cjb.net gives away that this is actually taking you to a person's site not the bank's.
Dunno if I explained that well but I do understand what I mean!!

I understood Pippa! :P

Originally posted by purplepippa
Ok, well it wants you to think it's Lloyds TSB obviously, hence the beginning, however the : at the end of lloydstsb.com arose my suspicions. I don't understand all the numbers but the real giveaway is the wgdoirk4.cjb.net because cjb.net is a place where you can get better URLs than the usual free ones. So I have a proper web address and also a geocities one so if I couldn't afford another proper one I could go to cjb.net and get pippa.cjb.net or something similar to redirect to my geocities one.
So the bit with cjb.net gives away that this is actually taking you to a person's site not the bank's.
Dunno if I explained that well but I do understand what I mean!!
But if you copy and paste it does actually take you to Lloyds TSB.

: after a url normally denotes port number, but there is no number in this case.

arent these replica sites tocon people to give over their used details?

http://news.bbc.co.uk/1/hi/business/3217485.stm

Ah yes, clever. I totally fell for that! Silly me. If you put some random crap into that pop-up it just says:

Thank you.

Your E-Mail Address Was
Successful Verified.

If you look at the source code, it's not actually submitting the information to Lloyds, it's sending it somewhere in http://d2027722.u27.worldispnetwork.com/ . This means the owner of this site would have access to your account details if you didn't realise what you were doing.