I just downloaded MD 2.5.0 and I'm barely out of learning mode,still trying to understand the beast, but I need help with any Rule I could do to implement ARP protection within my connected computers. Up to now I never shared anything and they were quite safe from one another,but now I need to set one computer for file sharing and would like to keep the other two safe from dangers. Comodo provides such a protection effortlessly, but I couldnt discern any such chance on MD firewall,which remains a bit cryptic too me. A router provides protection from the outside,obviously,but I'd like to set a rule for the pc running MD not to accept anything from within the LAN itself. Might be such a rule is already in place ,but I cant find out. Anyone,please?