How do I perform a ping on the entire subnet 4

[BugsySiegel]

I have been away too long. I know there's a way to ping my entire subnet to see who I get a reply from. I just don't remember how to do it. I thought all I had to do was ping the broadcast address (x.x.x.255), but when I do that, I get just the one reply. I don't get a reply from all connected nodes. What am I doing wrong?

Thanks in advance for answering such a stupid question.

 

[danielhozac]

[tt]ping -b <broadcast address>[/tt]

//Daniel

 

[BugsySiegel]

That doesn't work. There doesn't seem to be a -b switch. Am I missing something?

Thanks

 

[danielhozac]

As you haven't stated what OS you are on, it's hard to help as ping varies. The above works fine on Linux.

//Daniel

 

[Keif420]

There are some very nice programs that can tell you this information very easily like &quot; Ping TOOL &quot;. Most of these are freeware programs, I have found them to be very simple to use and read this kind of information. I know you do not need a program to read this info, But its so graphically nice & easy Why NOT?

 

[ricpinto]

Try this: In the command prompt -- c:\>FOR /L %i IN (1,1,20) DO ping -a 192.168.0.%i

above example will ping 192.168.0.1 to 192.168.0.20. giving the computer name and a reply.

 

[BugsySiegel]

I'm very sorry. I'm using Windows 2000 either server or professional.

I thought there was an old DOS command that allowed me to do this. Maybe not. Maybe it was only from the router I was able to do it.

 

[ricpinto]

Why don't you try my suggestion, I tested it on Win2k server.

Let's say you want to ping 192.168.0.1 to 192.168.0.255
From the command prompt:

c:\>FOR /L %i IN (1,1,255) DO ping -a 192.168.0.%i then Enter.

(1,1,255) - (start,step,end) and %i is the variable.

 

[BugsySiegel]

You are a Genius!! Where did you find this command string? I did try it earlier, but I couldn't get it to work. When you said you got it to work on W2K, I tried again and started dropping off characters at the beginning of the string until it worked. This is a keeper - Thank you very much!

 

[MattWray]

That is cool!

Thanks,

Matt Wray
MCSE, MCSA, MCP, CCNA

http://www.sss-steel.com

http://www.total-tec.com

 

[Keif420]

Yeah the programs LIKE &quot;PING TOOL&quot;, Run a similiar thing. Executed much faster with the tool. Also, It organizes the data and allows you to extract it to a text file.

 

[ricpinto]

You're welcome guys, but the command string is from the FOR statement usually used in a batch file. I experimented it until I got it correctly.

Keif:
If the &quot;Ping Tool&quot; is a utility then it should work better. Is it free?

 

[BugsySiegel]

I downloaded the P-Ping Tool and it's very difficult to use. I am having to input each IP address one at a time before I can do a ping on all of them. I have a /23 subnet which has 512 IP addresses. That's too much. I would rather have a tool where I put in the network address and the broadcast address and have it discover everything on its own. Maybe I'm doing it wrong - that's quite possible.

Thanks again to everyone who responded.

 

[hewissa]

ricpinto,

Outstanding! That is a really cool piece of scripting.

Star for you bud!

Hewissa

MCSE, CCNA, CIW

 

[ricpinto]

Thanks for the * Hewissa.

Guys, finally I got it to be extracted to a file:

From the command prompt:

c:\>FOR /L %i IN (1,1,255) DO ping -a 192.168.0.%i>>ping.txt

(1,1,255) - (start,step,end)
%i - variable.
ping.txt - Resulting file.

 

[SteveTheGeek]

You might also check out SuperScan 3.0.

http://www.networkingfiles.com/PingFinger/SuperScan.htm

(among other download sites). It has all the ping functionality, and you can scan your LAN as well. Freeware, handy, I've been using it since v1.0.
-Steve

 

[Keif420]

Yeah, Ping TOOL is freeware. Try to find it on Downloads.com . Its a small download and a real useful utility!