How to configure IFD (claims based authentication) crm 2011 for CRM on premise

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http://www.interactivewebs.com/blog/index.php/server-tips/microsoft-crm-2011-how-to-configure-ifd-hosted-setup/

steps to configure IFD for CRM on premise

.Download the Microsoft Dynamics CRM 2011 Implementation Guide (click here) - Follow instructions in section "Configure Microsoft Dynamics CRM for Internet-facing deployment" to set up an IFD environment

1. Download the Microsoft Dynamics IFD configuration tool from: http://support.microsoft.com/kb/948779

2. Instruct your network administrator to add the following IP range (64.56.203.0-64.56.203.255) to allow access your network

3. Instruct your network administrator to configure the external DNS to allow https://your.dynamicsurl.com to resolve from outside the firewall

4. Wait 4-6 hours to allow time for DNS replication to complete