To access folders which are on Solaris box, Windows needs to know how to read them. Some thing for the Android. I don't know is this yout home netwotk or what. Are you using LDAP ? Or you just have one folder shared and that is that. First, you should read oracle docs. Alfa and omega for Solaris OS.
http://docs.oracle.com/cd/E19253-01/...-49/index.html
First link describes how to configure LDAP and user credentials.
And I think your answer is here:
Solaris CIFS Administration Guide
Are you using SSH to connect to Solaris from the Linux box ?
P.S. I know my English is bad, but I think people can understand me