Xen - Internet connectivity with aliased interfaces

Hello everyone,

I'm fairly new to Xen, so I'm trying to teach myself as much as I can. Earlier, I was finally able to launch a working Windows7 32bit instance running as a domU! I am able to connect to it over VNC just fine, but now I want to add internet connectivity. I am finding a lot of sample configurations, an many of them mention the use of bridging, but I'm not entirely sure what I setup should be using... But first, a little about my current setup.

My server (Debian squeeze x64), has a single physical ethernet interface:

name: eth0 ip: xx.yy.zz.200 gw: xx.yy.zz.1 mask: 255.255.255.0 

This interface is aliased into 3 other interfaces:

names: eth0:1, eth0:2, eth0:3 ip: xx.yy.xx.201, 202, 203 (respectively) gw: xx.yy.zz.1 mask: 255.255.255.0 

Given my unique (with respect to the many tutorials I've read) situation, here are my questions;

• Should I be using a bridge?
• Should I give the bridge an IP of 192.168.1.???
• Should I give the bridge an IP of xx.yy.zz.??? (.{201-203}, or maybe a .204?)
• Can I scrap the bridge, and just use eth0:{1,2,3} directly?

If anyone has any suggestions, they would be much appreciated. Thanks!