Open Wireless on an office LAN
Posted on 2009-12-20
On an office LAN with all domain workstations and a single domain controller. None of the workstations have wireless cards. There is no wireless traffic on the LAN.
The LAN is protected by a hardware firewall connection to the internet.
How insecure is it to add a linksys wireless (WRT54G) router on the inside, for the office waiting room? An OPEN (unencrypted) wireless for use by visitors only, for their personal web surfing while waiting.
Would such a visitor (or a wireless user in an adjacent office) be able to see LAN packets, even though all LAN users are wired-connection-only? Is such a system hackable from the wireless, even though the workstations are on a domain and the wireless users won't be domain users?
Internet --- Firewall --- LanSwitch --- Domain Controller
|----Linksys Wireless Router
Thanks for your thoughts on this.