Desktop IP for Windows CE or Windows Mobile when working without network

My Environment
OS: Windows 7
DB Server: SQL Server 2008 R2 (Default Instance)
Connectivity through: Windows Mobile Device Center
Application Developed in: Visual Studio 2008

For Windows CE

Desktop IP: 192.168.55.100

Device IP: 192.168.55.101

For Windows Mobile

Desktop IP: 169.254.2.2

Device IP: 169.254.2.1

Connection string inside my

Windows CE Project

"Data Source=192.168.55.100,1433;Initial Catalog=MyDB;Persist Security Info=True;User ID=sa;Password=MyPassword;"

Windows Mobile Project

"Data Source= 169.254.2.2,1433;Initial Catalog=MyDB;Persist Security Info=True;User ID=sa;Password=MyPassword;"