RE: [lists] Getting Printer IP Addresses Prior to Pen Testing - Question About DHCP

From: Curt Purdy (purdy@tecman.com)
Date: Wed Sep 21 2005 - 19:37:51 EDT


Marjorie Rintoul wrote:
>
> DHCP allocates IP addresses dynamically. How does DHCP know
> which (fixed
> printer) IP addresses to stay away from? Does anyone know of
> a way to get this list?
>

Exception addresses coresponding to the printer addresses are coded into the
DHCP server. You can obtain printer ip's by using an SNMP scanner like
SolarWinds. Most printers have SNMP enabled by default with public
community enabled.

Curt Purdy CISSP, GSNA, GSEC, CNE, MCSE+I, CCDA
Information Security Officer
Information Systems Security
www.infosysec.net
cell: 443.846.4231

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