[coLinux-users] vista, samba and tuntap blocks

[Frank <col...@fr...>]

Hello everybody,
I have a strange behavior in setting up a tuntap connection between 
coLinux and the Windows Vista Host. First I have to say - IT WORKS 
INITIALLY - so it seems not to be one of the simple NTLMv2 problems 
between vista and samba.
But one step after the other:
My setup:
- coLinux 0.8.0 (devel-20080329) from Henry Nestlers site
- TAP Win32 version 8.4 from Henry Nestlers site
- ubuntu 7.04
- Windows Vista Ultimate
- manually start coLinux (not as a deamon)

After setting up everything and starting coLinux - it seems to work. My 
tuntap adapter works with IP 192.168.0.1 on Vista and 192.168.0.2 on 
ubuntu. The ssh-Login works and so on. After mapping a samba drive from 
ubuntu into vista I can see my files and work with them.
BUT after approx. 15 Minutes the samba connection "blocks". The other 
network connections like ssh are still alive and I can work with them; 
but samba blocks. I've installed wireshark to see what happens and I 
see, that directly before samba blocks vista sends a bunch of (UPNP) 
multicast messages (IP 239.255.255.250) to ubuntu - and after that - the 
samba connection seems to be broken !! from the vista point of view !!. 
The samba server itself still sends echo-requests and is alife. The 
reason, why I ask this question here is: If I set up a Microsoft 
loopback-device with pcap-bridging - the connection stays stable - but 
very very slow. In my opinion this may be a problem in the tuntap driver 
or in coLinux.
Are there anybody here who knows this problem or has any suggestions?

Thanks in advance!