Usbnet With Mandriva 2007 Options

[wowdar]

I installed Mandriva 2007 on my PC. I added in rc.local the line "/sbin/modeprobe usbnet" and when I type lsmod there is usbnet.
I done the file ifconfig-usb0
DEVICE=usb0
BOOTPROTO=static
IPADDR=192.168.129.200
NETMASK=255.255.255.0
NETWORK=192.168.129.0
BROADCAST=192.168.129.255
ONBOOT=yes
METRIC=10
MII_NOT_SUPPORTED=no
PEERDNS=yes
I type in console:
[root@localhost dario]# ifconfig usb0 192.168.129.200 netmask 255.255.255.0 up
Now I can ping the zaurus at 192.168.129.201

In the Mandriva KDE browser I type "smb://zurus" and I can see the home directory. I double click on home and I can see the two directory:
CF_Card and Main_Memory.
Now if i double clik on these directory I recieve a window error with this message:
"Tempo scaduto sul server zaurus" (Timeout on zaurus server)
How can I do to resovel this problem?
Tanks Dario