My university blocks incoming UDP which is not a problem for daoc but it doesn't let me play Heroes of Newerth.
So I use a service called your freedom,
http://your-freedom.net
This in combination with OpenVPN lets you run almost any application through the proxy, and they have a free basic package of the service.
The free version does not have high enough bandwidth for HoN, so I'm not sure if it is good enough for daoc, but I pay $13/month for the enhanced package that puts me at a comfortable ping with minimal lag and it has unlimited use.
I think that the enhanced package would easily let you play daoc at work, but I don't know about the free package. This also lets you run most other games and apps and web browsing through the proxy, so the $13/month gets more use than for just 1 game.
Edit: I have used daoc with this service when I was activated, but I was at the enhanced package so I can't say if the free package is good enough.