User Manual
User Manual
User Manual
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The Configuration dialog box is displayed. You are in the configuration section<br />
Application rules.<br />
Activate the Expert mode option.<br />
Select the configuration section Adapter rules.<br />
Click add rule.<br />
Select UDP in the section Incoming rules.<br />
Type the name of the rule in the Section Name of the rule.<br />
Click OK.<br />
Check if the rule is directly above the rule Deny all IP packets.<br />
Warning<br />
This rule is potentially dangerous because it will allow UDP packets without any<br />
filtering! After working with the virtual machine change to your previous security<br />
level.<br />
Virtual Private Network (VPN) Connection is blocked, if the security level of Avira<br />
FireWall is set to medium or high.<br />
FAQ, Tips<br />
Reason: This problem is caused by the last rule Deny all IP packets which discards all<br />
packets that do not comply with any of the rules above it. The type of packages dispatched<br />
by the VPN software (so-called GRE packets) do not fit into the other categories and<br />
therefore they are filtered by this rule.<br />
Replace the rule Deny all IP packets with two new rules which will deny the TCP and<br />
UPD packets. In this way there is the possibility to allow packets of other protocols.<br />
An email sent via a TLS connection has been blocked by Mail Protection.<br />
Reason: Transport Layer Security (TLS: encryption protocol for data transfers on the<br />
Internet) is not supported by Mail Protection at this time. The following options are<br />
available for sending the email:<br />
Use a different port from port 25, which is used by SMTP. This will bypass monitoring<br />
by Mail Protection.<br />
Turn off the TLS encrypted connection and disable TLS support in your email client.<br />
Disable (temporarily) monitoring of outgoing emails by Mail Protection in the<br />
configuration under Mail Protection > Scan.<br />
Webchat is not operational: Chat messages are not displayed; data are being loaded<br />
in the browser.<br />
This phenomenon may occur during chats, which are based on the HTTP protocol with<br />
'transfer-encoding: chunked’.<br />
Avira Professional Security - <strong>User</strong> <strong>Manual</strong> (Status: 30 Mar. 2012) 65