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AW: Suggested patch (no ARP ping on localnet with -P0)
From: "Baumgart, Alexander (K-GOT-1)" <alexander.baumgart () volkswagen de>
Date: Wed, 25 Jan 2006 12:12:09 +0100

On Wed, Jan 25, 2006 at 10:16:00AM +0100, Carl-Johan Bostorp wrote:

I came across a situation where I didn't want nmap to even do ARP ping 
on the localnet

Could you clarify the reason?

Hello,

i had the same problem. Here a reason why u didnt wanna send arp ping

nmap -sP --host_timeout 2000 localsubet (192.168.0.0/24 for instance)

Nmap finished: 256 IP addresses (74 hosts up) scanned in 3.415 seconds

nmap -sP localsubet (192.168.0.0/24 for instance)

Nmap finished: 256 IP addresses (80 hosts up) scanned in 3.715 seconds

Its a timing problem. Same effect if u use --max_parallelism. As Andreas
Ericson wrote under linux --send_ip help.
Under windows (windows xp sp2) always raw socket get used ;( 

Mfg Baumgart


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  • AW: Suggested patch (no ARP ping on localnet with -P0) Baumgart, Alexander (K-GOT-1) (Jan 25)
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