This might be a common situation but I couldn't find anything that provided a clear answer.
I moved into an apartment complex. All the apartments are on a LAN sharing the same Internet connection. I have no control over the central router.
What is the best way to set up my Internet access?
I want to isolate myself from other people living in the apartment complex. I need wireless because my phone does not have an ethernet port :) So I have bought my own router (with wireless) and installed DDWRT on it.
Is there a way to set it up to avoid double NAT, while still isolating myself from the other apartments?
There is no UPnP on the central router. I think they disallow open ports anyway for security reasons. Is there any way I can open ports without access to the central router? Or is there a workaround like using a VPS or reverse-ssh (and how does it work)? Bittorrent works without open ports. Hosting webservers I can do on a VPS. What about remote desktop/VPN? Games nowadays don't require open ports?
A more general question: is this the way to set up Internet access in an apartment complex? It seems a bit strange that with all the different protocols and routing types and the Internet being just a bunch of routers connected together, that there is no way to host a server behind a third party router? Should I try to talk the admin into making the router use BGP or something (but it won't work because the ISP needs to do that). Actually, why can't you get multiple IP addresses from your ISP on a single connection?