Crossplatform LDAP Sol -> Windows

System

We are running TeamSite 6.7.1 on Solaris and will be integrating to an LDAP server running on Windows (AD I think). My questions are:

1) Is this supported?

2) Are there any issues with the crossplatform use?
i.e. having to login using domain\userid even though you are on Solaris?

Thanks,

Andrew Farnsworth