[Samba] trouble to connect to window$ share with netbios name

[Mack Christian]

Hello
I got this message :
____________________________________________________________
3614: Connection to XP failed
SMB connection failed
___________________________________________________________
when i try to mount mount a share with netbios name like that:
$mount -t smbfs -o username=test,password=test //Xp/share /mnt/floppy

if i mount the same share with ip address that's no problem.

if i test this :

$smbclient -U=test -L 192.168.4.248

i get that output:
________________________________________________________________
Domain=[Xp] OS=[Windows 5.0] Server=[Windows 2000 LAN Manager]

 Sharename       Type      Comment
        ---------       ----      -------
        IPC$          IPC       IPC remote
        share          Disk
        ADMIN$   Disk     
        C$              Disk      Default Share
session request to 192.168.4.248 failed (Called name not present)
session request to 192 failed (Called name not present)
Domain=[XP] OS=[Windows 5.0] Server=[Windows 2000 LAN Manager]
________________________________________________________________

if i do the same with netbios name:
$smbclient -U=test -L Xp

i have that one :
_______________________________________________________________
Connection to Xp failed
_______________________________________________________________

any help could...help

chris