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Re: disable valid IPv4 address check to allow scanning Hamachi ( targets?
From: David Fifield <david () bamsoftware com>
Date: Mon, 18 Apr 2011 20:38:43 -0700

On Sat, Apr 02, 2011 at 03:30:19PM -0700, David Fifield wrote:
On Sat, Apr 02, 2011 at 02:51:21PM -0700, Brolin Empey wrote:
When I try scanning an Hamachi client’s IP address, nmap
states “doArp can only handle IPv4 addresses” and aborts.  I know
this is because Hamachi’s assignment of IP addresses is
unofficial, but it would be nice if the valid IPv4 address check
could be disabled so Hamachi clients and other hosts with
unofficially-assigned IP addresses could still be scanned.

I searched for a solution/workaround but only found discussions
about Hamachi’s unofficial IP address assignments, not any way to
scan Hamachi clients.

I do not think these details matter in this case, but I am currently
using nmap v5.50 on Windows 7 Professional IA-32.

There must be something else going wrong, because I can ARP scan with

/sbin/ifconfig eth0:1 netmask
nmap -PR --packet-trace

Does it work if you use the -S option to set a source IP address? (It
should be the address of your Hamachi interface.)

David Fifield
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