Timeline for private address in traceroute results
Current License: CC BY-SA 3.0
9 events
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| S Mar 4, 2018 at 19:54 | history | suggested | Pablo A | CC BY-SA 3.0 |
Improved formatting, fixed typo, sentences starting with capital letter.
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| Mar 4, 2018 at 19:43 | review | Suggested edits | |||
| S Mar 4, 2018 at 19:54 | |||||
| Jun 25, 2013 at 21:12 | comment | added | misteryes | maybe my description is a bit vague. I have updated it. The remote host is with a public IP, not a private IP. And the first hop from is is also a public IP. Then the second and third hops are with private IPs. | |
| Jun 25, 2013 at 20:09 | comment | added | Frank Thomas | how would you subnet a 10.0.0.0 network without routers that could route between 10.1.0.0/16 and 10.2.0.0/16 ? you are inside someones network. the gateways in and out of their network use public IPs but the routers inside it likely use private addresses. why would a school campus pay for public IPs when they can use as many privates as they want for free? your traceroute is tracing the communication from end to end, even when you are inside someones (and ISPs) private network. | |
| Jun 25, 2013 at 19:41 | comment | added | misteryes | I thought private IPs are usually used for NATed home network, or LAN inside organizations/companies, and they are behind a public IP. you meant there are routers with private IP addresses? are there many routers with private IP addresses? is it common? are there any articles about this? | |
| Jun 25, 2013 at 16:53 | comment | added | Frank Thomas | because ISPs have huge networks, and if they didn;t use private IPs internally, we would have run out of them decades ago. as you move through the ISP inter-network, you are jumping from router to router, and each of those should be included in your trace. you have to exit your ISPs network, pass onto another ISPs network, through it, and eventually on to the destination. you will probably have more private hops than public ones in most cases. from your perspective they are 'behind' but from their perspective, the public address is 'in front'. leave one network, and enter another. | |
| Jun 25, 2013 at 14:41 | comment | added | misteryes | but why the public IP is behind the private IP? | |
| Jun 25, 2013 at 12:19 | history | edited | Frank Thomas | CC BY-SA 3.0 |
added 94 characters in body
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| Jun 25, 2013 at 12:11 | history | answered | Frank Thomas | CC BY-SA 3.0 |