ESET firewall block computer with win XP

[zovirax000]

hello.
it no possible access to shared folder in windows 7 with ESET SMART SECURITY
from computer with windows XP.
in the log i get the EVENT:

13/04/2010 19:08:23	Detected SMB Relay attack	192.168.1.100:2029	192.168.1.109:445	TCP			

(if the firewall is disable it working good)

how i can fix it?

thanks