Fake or malformed UDP packet, Hamachi

CFP BETA Corner
#1

I have a problem with BETA 2.3.2.21 and running VNC or RDP across Himachi. I get the below events in the log. It all worked fine until I upgraded to 2.3.2.21

Any thoughts on how I might solve this?

Date/Time :2006-08-13 20:54:54
Severity :High
Reporter :Network Monitor
Description: Blocked by Protocol Analysis (Fake or Malformed UDP Packet)
Direction: UDP Outgoing
Source: 192.168.1.100:14923
Remote: 65.210.x.x:9588
Reason: UDP packet length and the size on the wire(48448 bytes) do not match
Date/Time :2006-08-13 20:54:54
Severity :High
Reporter :Network Monitor
Description: Blocked by Protocol Analysis (Fake or Malformed UDP Packet)
Direction: UDP Outgoing
Source: 192.168.1.100:1062
Remote: 65.210.x.x:1186
Reason: UDP packet length and the size on the wire(1356 bytes) do not match

#2

We are going to release another beta on thursday which will fix this issue.

Egemen

#3

I updated to 2.3.3.33 and still have the same issue. I can use the Cisco VPN client and VNC or use RDP fine, but if I use Hamachi I still get the blocked by protocol analysis errof. Once I turned that off it worked. But if the feature is there I would like to be able to use it.

#4

What you need to do is to goto

Security->Advanced->Advanced Attack Detection and Prevention, Click on Miscellanous tab and deselect “Block fragmented IP Datagrams” option.

Then it should work fine.

Egemen