Sharepoint 2010 anonymous access

Go to Central  Admin | click to “Manage web applications” link then click to your web application – On ribbon choose Icon Authentication Provides  (Image 35)

Dialog appear, click to “Default” link

Check to “Enable anonymous access”

Back to list your application, on you web application choose Icon Anonymous Policy on ribbon

In anonymous User Policy:  choose radio button “None - policy”

Go to your web application

Site Actions | Site Settings | Site Permissions

On ribbon click Icon Anonymous Access

In Anonymous user can access: choose “Entire Web site”