A VPN is just like you dropped your PC onto that other LAN. So as it is that, to keep the VPN secure a lot of things we do on a normal LAN or internet connection are not possible since it would not be a VPN.
Maybe you are trying to do something else other than a VPN? Some folk try to use a VPN to spoof their location but as you didn't reveal that, we are not discussing that.
I'm trying to connect my Xbox 360 to a VPN with internet sharing, but whenever I click "allow internet sharing" on the VPN I get errors like error 800 or error 714 that say things like "couldn't esablish vpn connection" or something like "security settings not compatible." I've also tried remaking the VPN and turning off the firewalls but nothing works. Could someone help me out? Also, I've heard that I can use a bridge connection instead, but don't I need a wireless connection for that? If so, how can I do this?
Not sure if I should post my specs or what info you'll need, but I'm using a PC with Windows XP and a DSL/Broadband wired connection for my PC and Xbox. My local area connection is: Realtek PCIe FE Family Controller. Also, please keep in mind that I'm a total non-expert when it comes to computers. I barely know what I'm doing, I just learned from tutorials.