![]() Entering image path in the "This program" field, I didn't check the "Services" dialog that still had the "Apply to this service" mode. Why may VMNAT service be permanently blocked, regardless of existing "allow all" rules, while other applications/services having corresponding rules are working normally?ĭoes somebody use VMware NAT when Windows Firewall is configured to block outbound connections by default, with a special rule for the service? How to unblock this service only, not all services instead? Path to "c:\tmp\vmnat.exe", created "allow all" rules for this image and restarted the service. Then copied vmnat.exe to c:\tmp, changed image I suspected that the problem may be related to WOW64 directory mapping and changed VMNAT image path from "c:\windows\system32\vmnat.exe" to "c:\windows\syswow64\vmnat.exe" and restarted it, with no success. Only VMNAT service is blocked for an unknown reason.Ī topic in VMware Forum but there were no useful answers at all. I tried to create rules for other services (Windows Update, Windows Time, FileZilla FTP Server) and they all are working fine. Windows Firewall blocks VMNAT service until I change program specification to "Apply to all services" or turn default outbound blocking off. Network Information: Direction: Outbound Source Address: 192.168.1.66 Source Port: 53796 Destination Address: 64.4.11.37 Destination Port: 80 Protocol: 6 But if I try to establish a TCP connection (for example, "telnet 80") from a VM, the connection is refusedĪnd a blocking event is added to the Security Log:Īpplication Information: Process ID: 644 Application Name: \device\harddiskvolume1\windows\syswow64\vmnat.exe ![]() I have enabled outgoing and incoming UDP packets from/to port 53 for "all services" and domain name resolution started to work normally. I have added two more rules, specifying "c:\windows\syswow64\vmnat.exe" and "\device\harddiskvolume1\windows\syswow64\vmnat.exe" in "This program" instead of "VMware NAT Service" in "Apply to this service" but with no success. Network Information: Direction: Outbound Source Address: 192.168.1.65 Source Port: 57648 Destination Address: 192.168.1.1 Destination Port: 53 Protocol: 17 ![]() The Windows Filtering Platform has blocked a connection.Īpplication Information: Process ID: 1808 Application Name: \device\harddiskvolume1\windows\syswow64\vmnat.exe I have enabled Filtering Platform auditing and see blocking events in the Security Log: I have created an "allow all" outbound rule for VMware NAT Service but Windows Firewall continued I have VMware Workstation 8.0.4 installed and need to allow VMware NAT Service to access the network to use network connections from virtual machine guests. I have created some rules for networking applications (Internet Explorer, Opera, Java, WinDbg, Visual Studio 2005, telnet etc.) and they all are able to communicate over the network. I prefer to have more secure environment so I configured it to block all connections that have no explicitlyĭefined rules. By default, Windows Firewall with Advanced Security was configured to allow any outgoing connection.
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