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The following info is from a UNIX host with a IP of 205.133.127.8/24 and a gateway of 205.133.127.1
(205.133.127.1) at 0:50:54:7b:e8:c0
(205.133.127.4) at 0:10:1f:52:10:0
(205.133.127.6) at 0:60:8:93:37:b5
(205.133.127.7) at 0:0:f4:c8:9f:6a
(205.133.127.8) at 0:60:8:93:38:c2
(205.133.127.9) at 0:60:8:93:38:db
(205.133.127.10)at 0:50:da:b:23:c9
...
(205.133.127.76) at 8:0:20:b:6d:b9
(205.133.127.84) at 0:c0:5:4:14:17
(205.133.127.85) at 0:c0:5:4:1e:19
...
(205.133.127.214)at (incomplete)
(205.133.127.234)at 0:40:33:ca:a1:5d
(205.133.127.238)at 0:60:97:79:2:8a
(205.133.127.255) at ff:ff:ff:ff:ff:ff
What does this mean?
For this line (205.133.127.4) at 0:10:1f:52:10:0, What is this part 0:10:1f:52:10:0. showing?
Describe the events that will happen if the host had packets going to 205.133.127.84, 205.133.127.83, or 205.133.181.3?
What is the difference from these?
205.133.127.84 is the only line that shows up on my list.Does this signify something?
That's a list of Mac addresses and matching IP addresses.
If the host wants to send to a IP address that's in that list, and if there is a route to it in the routing table then it would eventually use that address.
See man arp for full details
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I'm almost positive everyone on here knows the meaning of 127.0.0.1. But, why is that ALWAYS localhost?
Who picked that arbitrary IP? Why was that IP picked?
Why not something more simple such as 1.0.0.0? Is there some special meaning to 127.0.0.1?
RFC means "Request for Comments"
RFC 1700 can be found at http://www.ietf.org/rfc/rfc1700.txt
This may give you more insight into how the IP's are allocated for localhost and so on.
Actually, a better reference is the following:
https://www.rfc-editor.org/rfc/rfc820
Certain IP addresses are reserved and 127.0.0.1 is one of them.
Some of the founding fathers/mothers of the internet decided that this was a good idea and we have been happy enough since that time.
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I'm having trouble with my network at work.
We have a LOT of computers on our network and one of them is causing me problems.
I'm rendering from 3ds Max via Backburner and I can see that there is a another manager distributing jobs.
I can see the IP adress of the computer (198.162.1.61), I just don't know where it is or what it's called.
Is there any way to get a specefic computers information if I only know its IP address?
Consult the ARP table. Then you'll get the MAC address, this you can match with the vendor via:
http://www.adminsub.net/mac-address-finder
command:
arp -a
use the following command to see the name of the computer:
nbtstat –a <ipaddress>
if you are lucky, you can also gather information via scans (ex program: autoscan, nmap, ...)
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I want to connect ubuntu virtual boxes with each other on a network. I want to use hadoop on it. So i need to put them in a network. It requires ssh to communicate. Can anyone help regarding it.
The easiest way is to change your adapter to "Bridged networking" instead of "Nat", the default. This way the guest system will get an ip on your local network and you can connect directly to it.
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Say i'm communicating with a computer A in a remote network .
Is it possible to know what are the hops that he is going through?
In other word, is it possible to detect what is computer A route to my computer?
I know that A might have a various routes to my computer , it just want to find a route. My whole problem begins with that fact that some networks "hides" there inside computer ( like NAT ) and just give you the gateway ip.
(I'm not talking about my route to his computer that can be easly achived by traceroute)
thanks!
The IP option Record Route asks routers along the way to include their address in the datagram so the route can be tracked. The trick is, many routers and firewalls are not keen on giving out this information and DROP packets with this option set. And, you'd have to get the remote peer to set the flag, so it would only be useful if you're in control of the software on the remote peer too.
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I want to simulate three computers, everyone behind a different NAT, in order to test hole punching.
I want a server that its address is know to the other two VMs, but the two VMs to be in separate NATs.
Any ideas on how to configure this in workstation 7 ?
Thanks :)
Honestly, if your three VMs are each under separate NATs and one VM has a public ipv4 address, then there is nothing specific you need to configure within workstation 7. You are ready to go to test hole punching.