Author Topic: Firewall Blocks Hyper-v traffic  (Read 5373 times)

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jimmyeao

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Firewall Blocks Hyper-v traffic
« on: October 07, 2013, 05:01:36 PM »
I have had a search of the forums, but I cant seem to fin d the answer to this..

Using Avast! free edition, I have hyper-v running on my Windows 8 machine with 2 vms running web services - the Avast firewall is blocking traffic to and from these VMs - where would I configure the exception, and how?

many thanks

Jimmy

Offline Pondus

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Re: Firewall Blocks Hyper-v traffic
« Reply #1 on: October 07, 2013, 05:08:28 PM »
Avast free does not have a firewall    ;)

jimmyeao

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Re: Firewall Blocks Hyper-v traffic
« Reply #2 on: October 07, 2013, 05:16:19 PM »
Ah, it would be the free trial I am in, apologies for the confusion..

Same question though  :P

Offline Pondus

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Re: Firewall Blocks Hyper-v traffic
« Reply #3 on: October 07, 2013, 06:36:09 PM »
do you get a popup message? .... what does it say?


jimmyeao

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Re: Firewall Blocks Hyper-v traffic
« Reply #4 on: October 07, 2013, 10:25:12 PM »
No, no pop up message, all i know is, I stop the avast firewall, my VMs can talk to the internet again. I start the firewall, they get cut off...

jimmyeao

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Re: Firewall Blocks Hyper-v traffic
« Reply #5 on: October 10, 2013, 12:03:56 PM »
Bump, any ideas?

Offline Eddy

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Re: Firewall Blocks Hyper-v traffic
« Reply #6 on: October 10, 2013, 12:23:22 PM »
Go to the settings for the firewall and allow them there.

Offline Cton

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Re: Firewall Blocks Hyper-v traffic
« Reply #7 on: December 06, 2019, 03:21:05 PM »
"Go to the settings for the firewall and allow them there." - Could you be please more specific? I need to know, what exactly to change there in order my Hyper-V VM to have the internet traffic, as my host machine does. Thank you in advance.

Offline Pondus

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Re: Firewall Blocks Hyper-v traffic
« Reply #8 on: December 06, 2019, 03:29:54 PM »
@Cton  did you notise the date and year this topic was created ... i guess not.

And @Eddy is no longer here so he will not reply to your post








« Last Edit: December 07, 2019, 12:22:10 PM by Pondus »

Offline Cton

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Re: Firewall Blocks Hyper-v traffic
« Reply #9 on: December 06, 2019, 03:37:10 PM »
Could you please help with an advice?

Offline Pondus

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Re: Firewall Blocks Hyper-v traffic
« Reply #10 on: December 06, 2019, 03:38:33 PM »
Could you please help with an advice?


Setting up Firewall Application Rules in Avast Antivirus
https://support.avast.com/en-eu/article/Antivirus-Firewall-Application-Rules

=================================================================

NOTE:The Network profiles control the settings which determine how strictly Firewall protects your PC.

Private: a lower level of security suitable for when your PC is connected to a trusted network such as your home or work network.
This profile enables better connectivity, and permits all communication within the network.

Public: a higher level of security suitable for when your PC is connected to a public network such as in a cafe or airport.
Because public networks present greater security risks, no incoming communication is permitted when this profile is set.

=================================================================




Offline Cton

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Re: Firewall Blocks Hyper-v traffic
« Reply #11 on: December 06, 2019, 03:44:10 PM »
Ок, thank you.

Offline Cton

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Re: Firewall Blocks Hyper-v traffic
« Reply #12 on: December 06, 2019, 04:19:50 PM »
I have now allowed everything under Virtual Machine Connection, but still, if the Avast Firewall is on, then no Browser can work in the VM. Once I disable the Avast Firewall, then it works just fine. Please, see the screenshot and tell me, if there is something to be changed. Thank you in advance.

Offline Pondus

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Re: Firewall Blocks Hyper-v traffic
« Reply #13 on: December 06, 2019, 04:48:35 PM »
Have you puplic or private network

Also see info posted here by @BWith
https://forum.avast.com/index.php?topic=227130.msg1505540#msg1505540



Offline Cton

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Re: Firewall Blocks Hyper-v traffic
« Reply #14 on: December 06, 2019, 05:11:46 PM »
I have resolved the issue now. To answer your question from the last post, I have the Private Network setting under Network Connection.
The Application Rule for the Virtual Machine Connection was the proper step, but it came out (after playing a lot around) that in order to take effect, I have to Turn Off / Turn On Avast firewall once. I am not sure if this is supposed to be this way, if yes, then it could be a good addition to the article, if it isn't, then you could raise this to the respective team internally.
Thank you for your assistance.