Re: How to find network computers
Re: How to find network computers
- Subject: Re: How to find network computers
- From: Martin Orpen <email@hidden>
- Date: Fri, 15 Oct 2004 18:43:47 +0100
on 15/10/04 5:59 pm, John W. Baxter at email@hidden wrote:
> On 10/15/2004 9:39, "John C. Welch" <email@hidden> wrote:
>
>> I mean, if you want to find EVERYTHING, ping the broadcast address and then
>> search your ARP tables. But I don't know how useful that info will be.
>
> Not very, if my vast network is typical. My Mac (10.3.5) responds to ping
> on the broadcast address. Neither the Actiontec DSL modem/router nor the
> laptop running Windows XP (home, SP2) does, and neither NIC appears in the
> arp table after the ping attempt. (Pinging the appropriate IP does fill in
> the arp entry, but if you know the address you don't need to do this
> searching).
(I'm sure I posted a script some time back which pinged every IP address in
a specified range. This then became a discussion of how you could "parallel
ping" to speed the script up.)
Anyhow, if you want to get some serious network investigation done, you're
better off using a shell tool like nmap.
It will do a basic ping scan of a 1-254 IP range in less than 5 seconds.
If pings are blocked you can switch to TCP Syn scans.
If you've got devices on the network that can detect half-open scans you can
switch to super-stealthy Xmas Tree, Null or Stealth FIN scans.
--
Martin Orpen
Idea Digital Imaging Ltd -- The Image Specialists
http://www.idea-digital.com
_______________________________________________
Do not post admin requests to the list. They will be ignored.
Applescript-users mailing list (email@hidden)
Help/Unsubscribe/Update your Subscription:
This email sent to email@hidden