You must have the samba service running
The command in RedHat is
mount -t smbfs -o username=[username},password=[password] //Server/Share_name /mount-point
[username]= Windows username
[password]= Windows password
//Server= Windows server name
/Share-name= Windows share name (i.e. C$, etc)
/mount-point= directory on linux box where you want to mount (i.e. /user/bin, /mnt, home/user)