Apple iPad iOS 5.1 - Manual (Page 131)

VPN access
VPN (virtual private network) provides secure access over the Internet to private networks, such as
the network at your company or school. Use Network settings on iPad to configure and turn on
VPN. Ask your administrator what settings you should use.
VPN can also be set up automatically by a configuration profile. When VPN is set up by a
configuration profile, iPad may turn VPN on automatically whenever it’s needed. For more
information, contact your administrator.
LDAP and CardDAV accounts
When you set up an LDAP account, you can view and search for contacts on your company or
organization’s LDAP server. The server appears as a new group in Contacts. Because LDAP contacts
aren’t downloaded to iPad, you must have an Internet connection to view them. Check with your
administrator for account settings and other requirements (such as VPN).
When you set up a CardDAV account, your account contacts are synced with iPad over the air. You
may also be able to search for contacts on your company or organization’s CardDAV server.
Set up an LDAP or CardDAV account: Go to Settings > Mail, Contacts, Calendars, then tap Add
Account. Tap Other.
Your service provider or administrator can provide the account settings you need.
131 Appendix A iPad in Business