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Ip Addresses

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(@jkrusic19)
New Member
Joined: 16 years ago
Posts: 2
Topic starter  

Hello everyone I am not sure if this is the right forum, and am new to computer forensics. But, I was curious to see if there was a way to find all IP addresses on a network, I am trying to locate all my ip addresses through cmd and don't know or am over looking a way to locate all my ip's on my network. Working with Windows XP SP2.


   
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(@kovar)
Prominent Member
Joined: 18 years ago
Posts: 805
 

Greetings,

All of the possible IP addresses can be determined by finding your subnet and your subnet mask. For example, if your IP address is 192.168.20.34 and your subnet mask is 255.255.255.0 then the range of valid IPs is 192.168.20.1-254 though .1 is usually the gateway.

If you want to know what IP addresses are in use, I'd ping the broadcast address and then dump the ARP cache. That usually works, but there are a lot of reasons something will not show up, including the fact that some systems ignore broadcast pings.

The better answer is to download nmap for Windows and use it

http//nmap.org/download.html

-David


   
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Jamie
(@jamie)
Moderator
Joined: 5 years ago
Posts: 1288
 

The better answer is to download nmap for Windows and use it

And if it's a friendly network (and assuming you're not the admin yourself) drop the admin a line before using it - it'll save them knocking on your door with a lot of questions.

As I remember once happened to me oops

Jamie


   
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(@itagent2000)
Eminent Member
Joined: 17 years ago
Posts: 31
 

Here is the nmap command for it

nmap -sP 192.x.x.0/24 (take your own IP-address-area)

another way is using Languard (http//www.gfi.com/). It also tells you the OS and security leaks. a 30 day trial-version is free

Hope it helped

Chris


   
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(@jkrusic19)
New Member
Joined: 16 years ago
Posts: 2
Topic starter  

Thank you guys for the input, it works great


   
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kushwadhwa
(@kushwadhwa)
Active Member
Joined: 19 years ago
Posts: 8
 

Try netscan.exe. It will give you all the ip addresses of the machines which are up. Exceptions are there in the sense that the ping request or some other request is not blocked from where the tool gets the ip address. Happy experimenting.

Kush


   
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