Enable packets pass-through for port mirroring traffic

Important! This step is required only when passive recording is used (port mirroring).

MiaRec leverages port mirroring function on the switch. Some firewalls may block the network packets, which are mirrored to MiaRec server because they think that such traffic is malicious as it is not originally destined to that server (this is a traffic from IP Phone to IP PBX rather than to MiaRec server).

This may cause one of the following issues:

  • one-way audio (when only one side of conversation is recorded)
  • no audio is recorded at all (both sides of conversation are not recorded).

Windows Firewall (included into Windows XP, Vista, 7, 2003, 2008) doesn't have such problem. It passes through the mirrored network traffic to MiaRec server.

Other firewalls may block such traffic. Some of them has a configuration option, which allows to pass-through the traffic. Usually such option has name "Allow network bridged connections" or "Allow Internet sharing".

In worse case firewall doesn't have any option for passing through the network traffic and the only possible solution is to disable the firewall at all (or replace that firewall with other model). Usually, such firewalls are built-in to antivirus packages.

Step-by-step guides for some of known firewalls:

AVG Internet Security

AVG Internet Security Firewall

AVG Internet Security Firewall blocks the network traffic from external Voip adapters/phones.

Because of this the call recording is not possible untill AVG Firewall is disabled.

MiaRec just doesn't see the network traffic, which is sent by Voip adapter/phone.

Unfortunately, this firewall has very basic configuration options* and there is no way to use it together with MiaRec.

* - this information is valid for AVG v.9.0.730 released on 1st of March 2010.

If you need to record calls, disable it or choose another firewall application.

Below screenshot shows how to disable AVG firewall.

Disable AVG Firewall

BitDefender Internet Security

BitDefender Internet Security Firewall

By default BitDefender Internet Security firewall blocks remote Voip traffic and prevents call recording capability.

In order to change this behavior, please, do following:

1) Open Settings of BitDefender Internet Security and choose "Firewall" from the left pane.

2) Click on "Advanced Settings" button (see below screenshot)

BitDefender Internet Security

3) Make sure that "Enable Internet Connection Sharing" is checked.

BitDefender Internet Security

4) Click OK button to save changes.

5) Reboot computer

Now MiaRec should be able to record your calls.

Should you have any problem or question, please, contact our technical support by e-mail or phone.

ESET Smart Security 4

ESET Smart Security 4

By default ESET Smart Security 4 firewall blocks remote Voip traffic and prevents call recording capability.

In order to change this behavior, please, do following:

1) Open Settings of ESET Smart Security 4 and choose "Setup" from the left pane.

2) Click on "Toggle Advanced mode" (see below screenshot)

ESET Smart Security

3) Click on "Personal firewall" in the left pane.

ESET Smart Security

4) Click on "Advanced Personal firewall setup..."

ESET Smart Security

5) On the left pane choose "IDS and advanced options" under "Personal firewall".

ESET Smart Security

6) Make sure that "Enable communication for bridged connections" is checked.

ESET Smart Security

7) Click OK button to save changes.

Now MiaRec should be able to record your calls.

Should you have any problem or question, please, contact our technical support by e-mail or phone.