I am new to openbsd, but i am familiar with the terminology of networking.
I surely accept everything you (jggimi) say and I respect and confide your opinion since your knowlodge/experience >>> mine. I just think we are having a miscommunication.
furthermore I dont understand the difference between the 2 situations you described.
there is no difference in openbsd acting as 2nd router and being on the same physical network. it's both..
http://student.uhasselt.be/~0421625/toplogy.png -> this is the infrastructure
openbsd is DHCP and DNS here. So I think I need NAT on openbsd too..?
ps: since the modem/router is provided by the ISP i cant access it.. Only through putty telnet, but I dont have username/pw
@bsdfan666: I am not really in a position to 'punish' anyone because I am a student too, I am nor owner nor manager..