Well, after search­ing for hours and hours, I have final­ly found a solu­tion to a small but trou­ble­some prob­lem. The prob­lem (if you call it that) occurs when I tried con­nect­ing to my work’s VPN. Rather than not using my work’s gate­way when con­nect­ed, OSX does this by default. Hence, you can see and hit your inter­nal IPs but not resolve the rest of the inter­net.

In Win­dows XP, this may be dis­abled via the fol­low­ing:

1. Open Net­work Con­nec­tions
2. Under Vir­tu­al Pri­vate Net­work, open the Prop­er­ties of your con­nec­tion
3. Click and open Prop­er­ties for “Inter­net Pro­to­cal (TCP/IP)”
4. Click on Advanced
5. Dis­able “Use default gate­way on remote net­work”
6. Hit OK, OK, and then you’re done

Although it’s easy in Win­dows XP, I could­n’t fig­ure it out for OSX. I searched and search to final­ly get this arti­cle from macosx­hints, Avoid Cre­at­ing PPTP Default Routes. The hints at the very bot­tom of the com­ments helped some­what, but did­n’t get me to view my inter­nal IPs—which was the reverse of the orig­i­nal prob­lem. Luck­i­ly, with a lit­tle bit more search, I land­ed on this arti­cle page by Chris­t­ian Stock­er on Chang­ing default routes on OSX on VPN. Though it was the same as the pre­vi­ous page from macosx­hints, I saw this short and sweet reply which hap­pen to have fixed every­thing:

lon­nie @ 22.08.2006 19:22 CEST
Inter­net Con­nect 1.4.2 has

Con­nect Menu -> Options…

|X| Send all traf­fic over VPN con­nec­tion

Uncheck­ing should do the same.

I hope this arti­cle could be of help, and save those who are look­ing for the same solu­tion san­i­ty and time.