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...and use OpenDNS at home...

...and have a laptop that you use at home and work...

...and the laptop has the DNS Updater tool installed...

...you have the capability of inadvertently filtering your company's (or whatever web traffic that is being used on that interface) traffic without needing to be an administrator.

Why does this work? You have set up your home OpenDNS account to block your network as defined by your dynamic updater tool. You go to work with your laptop, boot it up, let the updater run. It then establishes your work network/external IP as the current filtering network, then applies all of your OpenDNS filter settings to the external IP of your workplace. Since your workplace uses OpenDNS as forwarders, all content defined in your block list will now be blocked for your company.

I'm assuming that this works only if a systems admin has NOT created an OpenDNS account and defined the corporate/external network IP in the OpenDNS settings.

Still...this could cause serious problems with those companies that are using OpenDNS as a forwarder but haven't set up any kind of account - which, if you want to use OpenDNS for free, you can't or are not supposed to do.

Can someone else try this out and verify this for me?

Seems like maybe, just maybe, this wasn't thought out very well.