We recently purchased a SonicWall TZ200 firewall with SonicWall's content filtering service. My question is to see what others are doing for authentication of users to the firewall. Are you having your end users logon to the firewall, or are you setting it up through AD and LDAP?
My concern with AD and LDAP is if your LDAP server goes down, then internet access is blocked for all users.
Any thoughts are appreciated.