XBSLINK Tuturial Play lan games over the internet and Games list/community :) not laggy in my short experience
Hope this helps.
First thing first ideally you need 2 ethernet wires one for ps3 and one for pc; but if you only have one then use in pc as it needs too for compatibility.
Download latest version of xbslink 0.9.4.1 Download link
Now set up your i.p on the ps3 to be static, for me i choose 192.168.1.185 but just make sure it is on same subnet as the pc, my ps3 is plugged to the router.
leave pc as dhcp address if it is already. use cmd ipconfig /all to get your i.p info if needed.
Set your settings in xbslive exactly like in the pic provided, now it should be ready.
click start engine and then join/create a lobby you then either join someones session on ps3 or create one.
My tag on there is dingoo, if anyone from here joins put your tag below if ya want a game.
Games with lan (growing list pls confirm more)
007 Blood Stone
Armored Core 4
Blazing Angels 2
Blazing Angels 2 Multiplayer Demo
Call of Duty 4
Call of Duty Modern Warfare 2
Call of Duty World at War
Colin McRae DiRT
Colin McRae DiRT 2
Formula 1 Championship
Ghost Recon Advanced Warfighter 2
Kane & Lynch Dead Man
OFP Dragon Rising
Rainbow Six Vegas
Red Dead Redemption
Red Fraction Guerrilla
Saints Row 2
Unreal Tournament 3