wacked out idea, unless its possible
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Is there any way to measure the distance between two points on a network? Say by measuring signal degredation or somthing similar? I just think it would be cool if you could make a network/domain map using this method. Of course, there would be no way to track direction, except maybe by using the sender and receiver IP if on two different domains. Maybe I'm smoking too much crack.
Jason Henderson
"The best argument against democracy is a five-minute conversation with the average voter." - Winston Churchill
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Is there any way to measure the distance between two points on a network? Say by measuring signal degredation or somthing similar? I just think it would be cool if you could make a network/domain map using this method. Of course, there would be no way to track direction, except maybe by using the sender and receiver IP if on two different domains. Maybe I'm smoking too much crack.
Jason Henderson
"The best argument against democracy is a five-minute conversation with the average voter." - Winston Churchill
I remeber reading somewhere that you could work out which continent a server resided on based on its TTL value. But I also remember reading elsewhere that this was during the early days of the net and probably doesn't work as well as it used to. Andy
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Is there any way to measure the distance between two points on a network? Say by measuring signal degredation or somthing similar? I just think it would be cool if you could make a network/domain map using this method. Of course, there would be no way to track direction, except maybe by using the sender and receiver IP if on two different domains. Maybe I'm smoking too much crack.
Jason Henderson
"The best argument against democracy is a five-minute conversation with the average voter." - Winston Churchill
You could use the hop counter in the IP part of a packet, but this will only give you how many devices seperate the source from the destination. Check out TRACERT to give you some idea e.g. tracert codeproject.com
Tracing route to codeproject.com [207.219.70.31]
over a maximum of 30 hops:1 3 ms 2 ms 2 ms dsl-212-23-29-198.zen.co.uk [212.23.29.198]
2 20 ms 22 ms 22 ms gauss-dsl1.wh.zen.net.uk [62.3.83.2]
3 * * * Request timed out.
4 22 ms 24 ms 24 ms deleuze-ge-0-2-0.hq.zen.net.uk [62.3.80.81]
5 31 ms 31 ms 30 ms suarez-so-0-0-0.te.zen.net.uk [62.3.80.62]
6 34 ms 31 ms 30 ms sl-gw22-lon-2-1.sprintlink.net [213.206.158.57]7 30 ms 31 ms 31 ms sl-bb22-lon-9-0.sprintlink.net [213.206.128.104]
8 97 ms 97 ms 98 ms sl-bb20-nyc-2-0.sprintlink.net [144.232.9.163]
9 96 ms 98 ms 97 ms sl-bb22-nyc-8-0.sprintlink.net [144.232.7.106]
10 118 ms 118 ms 121 ms sl-bb21-chi-9-0.sprintlink.net [144.232.9.149]
11 120 ms 118 ms 120 ms sl-bb20-chi-14-0.sprintlink.net [144.232.26.1]
12 118 ms 119 ms 142 ms sl-gw36-chi-14-0.sprintlink.net [144.232.26.70]13 124 ms 123 ms 120 ms sl-splk-telus-4-0.sprintlink.net [144.232.225.82]
14 136 ms 134 ms 133 ms toroonxnbr00.bb.telus.com [154.11.11.5]
15 132 ms 131 ms 132 ms toroonxngr00.bb.telus.com [154.11.11.54]
16 263 ms 227 ms 215 ms toroonnldr00.bb.telus.com [154.11.6.1]
17 132 ms 130 ms 130 ms toroonxndr00.bb.telus.com [154.11.6.16]
18 133 ms 135 ms 220 ms m192-234.tidc.telus.com [66.203.192.234]
19 * * * Request timed out.
20 281 ms 290 ms 331 ms 207.219.70.31Trace complete.
Shows that the codeproject servers are 20 devices/gateways/routers away from my machine. No physical distances are known. Neil
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Is there any way to measure the distance between two points on a network? Say by measuring signal degredation or somthing similar? I just think it would be cool if you could make a network/domain map using this method. Of course, there would be no way to track direction, except maybe by using the sender and receiver IP if on two different domains. Maybe I'm smoking too much crack.
Jason Henderson
"The best argument against democracy is a five-minute conversation with the average voter." - Winston Churchill
I've often wondered how common a satellite hop is for trans-continent communication. 50,000 miles round trip from a geosynchronous satellite would beat anything terrestrial. And on the subject of delays, have you ever used your cell phone to call another cell phone right next to you and noticed the delay between when you say "hello" and the other phone says "hello" back? It's about 1/4 second or so, as far as I can tell. Personally, I'm amazed that, while it's perceptible, it's barely so. Magic. (But that's because I only have a real vague idea of how it all works!) Marc Help! I'm an AI running around in someone's f*cked up universe simulator.
Sensitivity and ethnic diversity means celebrating difference, not hiding from it. - Christian Graus
Every line of code is a liability - Taka Muraoka
Microsoft deliberately adds arbitrary layers of complexity to make it difficult to deliver Windows features on non-Windows platforms--Microsoft's "Halloween files" -
Is there any way to measure the distance between two points on a network? Say by measuring signal degredation or somthing similar? I just think it would be cool if you could make a network/domain map using this method. Of course, there would be no way to track direction, except maybe by using the sender and receiver IP if on two different domains. Maybe I'm smoking too much crack.
Jason Henderson
"The best argument against democracy is a five-minute conversation with the average voter." - Winston Churchill
It would certainly be cool, but you'd need a new kind of NIC just for starters. You'd need to have one that can measure and report the actual signal voltage (to measure path loss) and some sort of time domain reflectometer to measure line length. Even so, you would only be able to characterize the physical path to the next router, and it would include lots of error because there is no standard for propagation velocity on network cabling. Your best bet would be to lobby for a standard that requires a physical address to be appended to the existing MAC address and which can be retrieved using ARP.
"Ask not for whom the bell tolls;
It tolls for thee..." -
Is there any way to measure the distance between two points on a network? Say by measuring signal degredation or somthing similar? I just think it would be cool if you could make a network/domain map using this method. Of course, there would be no way to track direction, except maybe by using the sender and receiver IP if on two different domains. Maybe I'm smoking too much crack.
Jason Henderson
"The best argument against democracy is a five-minute conversation with the average voter." - Winston Churchill
You're not on too much crack, there is a device which does this called a time-domain reflectometer.