SCCM Client install Command option required for installing client, which should work in Intranet and internet as automatically... When I connected the system in Office LAN it should work with intranet and when I connect the same system in internet (from my home or airport without VPN) it should work as internet based client. we are runing with Scenario 1 with no SQL Server Replica http://technet.microsoft.com/en-us/library/bb633059.aspx Is this possible?

Yes, it will work.http://www.enhansoft.com/

What would be the command line option i should chose when i install manually ?

CCMALWAYSINF = 1 means your client will always be Internet-based client and will never connect to the intranet. The client's connection type will diaplay "Always Internet". Since your clients may travel from intranet to internet and travel back, so you should not set this option CCMALWAYSINF = 1. Take this Technet document as a reference, it contains all ConfigMgr client properties you can use: http://technet.microsoft.com/en-us/library/bb680980.aspx Thanks

For configuring clients for Internet-based sites, you might find these links useful: How to Configure Configuration Manager Client Computers for Internet or Intranet Management: http://technet.microsoft.com/en-us/library/bb680683.aspx Administrator Checklist: Configuring Client Computers for a Site that Supports Internet-Based Client Management: http://technet.microsoft.com/en-us/library/bb694139.aspx