Problem with samba on XP client

[Pierre Couderc]

I emulate XP  on a debian  amd64 PC with tap, since years :

qemu-system-x86_64     -enable-kvm -uuid 
564d6522-2227-cda9-d1c7-390c71f68dbe -drive 
driver=qcow2,file=/home/nous/qemu/xp/TOLL-XPVM.qcow2   -net 
nic,model=rtl8139,macaddr=00:0C:29:B6:8D:BE  -net 
tap,ifname=tap0,script=no   -net user  -vga vmware -m 2G -smp 3 -rtc 
base=localtime  -no-acpi -cpu host

with  :


sysctl net.ipv4.ip_forward=1
tunctl -t tap0 -u nous
ip address add 192.168.164.1/24 dev tap0
ip link set tap0 up
iptables -t nat -A POSTROUTING -o wlp1s0 -j MASQUERADE
iptables -I FORWARD 1 -i tap0 -j ACCEPT
iptables -I FORWARD 1 -o tap0 -m state --state RELATED,ESTABLISHED -j ACCEPT


But after a reinstall on bullseye, XP and network seem ok , but access 
access to //10.0.2.4/qemu works no more (with a french Windows message).

Maybe it could be a samba problem(4.11.5), so I have tried to add   
"client min protocol = CORE", suspecting a smb1, smb2 problem but nochange.

Any idea welcome...

PC