Is there a network utility program I can use to see what computers are locally visible (i.e., they fall within the current netmask)? Getting their IP addresses would suffice. I tried: ping -b 192.168.1.0 but it only showed me my own computer. Paul Abrahams
Monday Mar 01 at 1:23pm, Paul W. Abrahams wrote:
Is there a network utility program I can use to see what computers are locally visible (i.e., they fall within the current netmask)? Getting their IP addresses would suffice. I tried:
Look at nmap. It has a number of options for doing exactly what you need. Sidenote: If you have a wireless router (D-Link in my case) on your LAN using the router's WAN port, have discovered that nmap doesn't finish its scan of the subnet. I haven't had time look into it, but it's probably related to the default firewall on the router. Jim Cunning
On Monday 01 March 2004 4:44 pm, Jim Cunning wrote:
Monday Mar 01 at 1:23pm, Paul W. Abrahams wrote:
Is there a network utility program I can use to see what computers are locally visible (i.e., they fall within the current netmask)? Getting their IP addresses would suffice. I tried:
Look at nmap. It has a number of options for doing exactly what you need.
Indeed it does. nmap was not on my system -- I guess it doesn't even come with 9.0 personal --- but I was able to download and install the nmap package using Yast with no trouble. The options that worked for me were: nmap -sP 192.168.1.1-30 That produced a list of active nodes in short order. Thanks a lot, Jim! Paul Abrahams
On Tuesday 02 March 2004 05:23, abrahams@acm.org wrote:
Is there a network utility program I can use to see what computers are locally visible (i.e., they fall within the current netmask)?
nmap is what you're looking for, you may have to install it. It's not there by default, which is sensible. It (can be) a pretty aggressive hackers tool. You want to know what you're doing before you unleash some of it's options, you could get yourself locked out of your ISP or busted by the cyberfuzz. A tightly specified ping scan is safe enough though. nmap -sP 10.5.0.0/24 nmap -sP '10.5.*.*' nmap --help for more. -- Michael James michael.james@csiro.au System Administrator voice: 02 6246 5040 CSIRO Bioinformatics Facility fax: 02 6246 5166
Paul W. Abrahams wrote:
Is there a network utility program I can use to see what computers are locally visible (i.e., they fall within the current netmask)? Getting their IP addresses would suffice. I tried:
ping -b 192.168.1.0
but it only showed me my own computer.
That should work, unless the other computers have disabled ping reply. You might try a utility such as nmap or just monitor the activity on the network, if possible.
participants (4)
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James Knott -
Jim Cunning -
Michael James -
Paul W. Abrahams