Stupid subnetting question
Me and my friend use the same ISP. Our LAN IP's are 10.0.0.245 (me) and 10.0.1.27 (friend). Now, since both our subnet masks are 255.255.255.0, we can't access each other's computers using NetBIOS (basically \\10.0.0.245\sharename or \\mycomputername\sharename don't work). I got around this problem by simply changing both our subnet masks to 255.255.0.0. What I wanted to know is whether this has any effect on the network as a large and whether anything can be done to prevent users doing this.
Cheers,
cgkanchi