Author Topic: Discover all IP addresses in a Local network.  (Read 4848 times)

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Offline hack3rcon

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Discover all IP addresses in a Local network.
« on: October 31, 2015, 02:26:47 pm »
Hello.
I need a tool that help me for finding all IP addresses in a local network. I found some tools like "AutoScan" or "netdiscover" but these tools can't working properly in a Vlans networks.

Any idea?

Offline RedBullAddicted

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Re: Discover all IP addresses in a Local network.
« Reply #1 on: October 31, 2015, 06:24:09 pm »
I am not sure if I understood your question. You want to get all ip ranges a network uses with a scanner? Well, you could use any subnet scanner and let it scan all private ip address ranges (https://en.wikipedia.org/wiki/Private_network).. lol. That will take a lot of time. The other option would be guessing the ranges. If your client is located in a 10.10.0.0/24 network you could try to scan the range 10.10.0.0/16 for example and see what you can find. Another way is to capture a good amount of network packets and go through them. I explained it here (its old and not very good.. but should give you an idea what I am talking about) https://evilzone.org/tutorials/(tutorial)-basic-network-discovery
Start to get creative.. maybe you can get those information from a L3 switch or router. HP for example has a default setting which looks like this "snmp-server community public unrestricted". Seen lots of devices where the admins did not remove that part of the config.

Hope that helps??
Deep into that darkness peering, long I stood there, wondering, fearing, doubting, dreaming dreams no mortal ever dared to dream before. - Edgar Allan Poe

Offline hack3rcon

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Re: Discover all IP addresses in a Local network.
« Reply #2 on: November 01, 2015, 07:51:02 am »
I am not sure if I understood your question. You want to get all ip ranges a network uses with a scanner? Well, you could use any subnet scanner and let it scan all private ip address ranges (https://en.wikipedia.org/wiki/Private_network).. lol. That will take a lot of time. The other option would be guessing the ranges. If your client is located in a 10.10.0.0/24 network you could try to scan the range 10.10.0.0/16 for example and see what you can find. Another way is to capture a good amount of network packets and go through them. I explained it here (its old and not very good.. but should give you an idea what I am talking about) https://evilzone.org/tutorials/(tutorial)-basic-network-discovery
Start to get creative.. maybe you can get those information from a L3 switch or router. HP for example has a default setting which looks like this "snmp-server community public unrestricted". Seen lots of devices where the admins did not remove that part of the config.

Hope that helps??

Consider it, You are at a company and want to know how many devices and ip ranges are exist. What do you do? Some tools like I said can help you but not working with VLANs very good.

Offline SilentCircle

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Re: Discover all IP addresses in a Local network.
« Reply #3 on: November 01, 2015, 08:32:39 pm »
Have you found out how to do ot if not semd me a pm id gladly help


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Offline RedBullAddicted

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Re: Discover all IP addresses in a Local network.
« Reply #4 on: November 02, 2015, 09:04:49 am »
Consider it, You are at a company and want to know how many devices and ip ranges are exist. What do you do? Some tools like I said can help you but not working with VLANs very good.

Yep, I would do what I explained above  :)

Have you found out how to do ot if not semd me a pm id gladly help


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Why don't you just post here? I would like to hear about your solution too.
Deep into that darkness peering, long I stood there, wondering, fearing, doubting, dreaming dreams no mortal ever dared to dream before. - Edgar Allan Poe

Offline 0E 800

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Re: Discover all IP addresses in a Local network.
« Reply #5 on: November 02, 2015, 06:24:53 pm »
For Windows use Wnetwatcher:
http://www.nirsoft.net/utils/wireless_network_watcher.html

Or use AngryIpscanner  (windows, mac, linux)
http://angryip.org/download/


Feel like this question should have been googled first.
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Offline romancodis

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Re: Discover all IP addresses in a Local network.
« Reply #6 on: November 19, 2015, 10:25:21 am »
For Windows use Wnetwatcher:
http://www.nirsoft.net/utils/wireless_network_watcher.html

Or use AngryIpscanner  (windows, mac, linux)
http://angryip.org/download/


Feel like this question should have been googled first.



yes OE 800  said correctly , angry ip scanner is the better solution for it

Offline th31nitiate

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Re: Discover all IP addresses in a Local network.
« Reply #7 on: November 19, 2015, 10:11:22 pm »
Guy would nmap just work as good though with the right switch's ?

OE800 is right thought angryIP is a good one, first port scanner i ever used on video, i found a shopadmin box once but i didn’t know what it was or what to do with it then

Offline ghostdragon

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Re: Discover all IP addresses in a Local network.
« Reply #8 on: December 26, 2015, 01:00:22 pm »
arpscan?
---
Sorry for my bad English :)

Offline spaceman

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Re: Discover all IP addresses in a Local network.
« Reply #9 on: December 26, 2015, 02:34:20 pm »
Search sone quick tutorials for nmap on google and you toobe it is very good tool.

Offline kurp

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Re: Discover all IP addresses in a Local network.
« Reply #10 on: December 27, 2015, 08:25:19 pm »
Try: nmap -sP 192.168.2.1/24

If that doesn't work try:
sudo nmap -sP -PS22,3389 192.168.2.1/24 #custom TCP SYN scan
sudo nmap -sP -PU161 192.168.2.1/24 #custom UDP scan

Offline deltonos

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Re: Discover all IP addresses in a Local network.
« Reply #11 on: December 28, 2015, 03:32:50 pm »
arpscan?
Arpscan & nbtscan  good tools for a fast "network" discovery. Into a pentest, in a corporative network... there is always at leas 1 windows :)

Regards!

Offline CRAZYBUDDY

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Re: Discover all IP addresses in a Local network.
« Reply #12 on: January 05, 2016, 04:38:57 pm »
For Windows use Wnetwatcher:
http://www.nirsoft.net/utils/wireless_network_watcher.html

Or use AngryIpscanner  (windows, mac, linux)
http://angryip.org/download/


Feel like this question should have been googled first.
Totally agreed with this, i myself use Angryipscanner to get ip addresses and stuff and to discover more like passwords i prefer using cainandabel or for much deeper solution to monitor network i prefer wireshark. please google with those names. you'll see em+how 2s
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Offline overflow

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Re: Discover all IP addresses in a Local network.
« Reply #13 on: January 06, 2016, 02:41:45 am »
You can do the nmap -sn command followed by ip range to check for hosts on a network, example:

nmap -sn 192.168.2.200-254

Hope that helps! If further questions into this don't hesitate to pm me.
« Last Edit: January 06, 2016, 02:42:25 am by overflow »
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Offline John200Ok

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Re: Discover all IP addresses in a Local network.
« Reply #14 on: January 08, 2016, 03:58:57 pm »
I am not sure what you meant,but KisMac might help you i guess :D