Re: Network scanning

[Jeff MacDonald <jam () zoidtechnologies com>]

On Thu, 2003-08-07 at 16:51, netsec novice wrote:
> Are there tools out there that would allow system administrators to be 
> notified when a new workstation attaches to a network?  I'm thinking both 
> wireless and ethernet in this case.  SNMP maybe?  I am in a credit union 
> environment and my concern is that someone would be able to steal an 
> existing jack or a jack that is not physically protected but live and be 
> able to capture traffic or do reconaissance.  We don't have Wireless access 
> at this point but may look to it in the future.  My only thought in that 
> case would be to encrypt all traffic since wireless security is a bit scary 
> at this point.  Any ideas?

arpwatch

use that in combination with a lock down of which MAC addresses are
allowed to access the DHCP service, and you ought to be golden.

regards,
J
-- 
Jeff MacDonald <jam () zoidtechnologies com>

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