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Voip with multiwan failover

Mark Gilbert

Wondering if Sophos can deal with this issue.

 

I had and had to make a custom script for my pfSense firewall. I was in a situation where you have multi-wan with cloud voip phones.  In the event that the primary wan went down and the phones disconnect they would switch to the secondary connection perfectly.  The problem is when the primary came back up the phones would still hold a connection via the secondary but because of routing the phones would also try to make a connection via the primary resulting in the phones ringing but unable to hear the other party.  The only way to resolve this was to kill all the states on the voice network/vlan still connected via the secondary when the primary would come back up allowing the phones to make a proper connection only via the primary ISP connection.  I would have to do this manually until I was able to create a script for the pfsense firewall. Does the sophos have a mechanism for dealing with this scenario?



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  • 0

    Hi  

    With the gateway failover feature of the XG, the default behavior is when the primary connection is restored and the gateway is up again, without the administrator’s intervention, traffic is again routed through the primary (active) gateway. In other words, the secondary (backup) gateway fails back on the primary (active) gateway (See Gateway Failback section).

    I would advise testing this feature and failing over first, to confirm the call behavior/experience is as expected for your cloud VoIP phones.

    Best,

  • 0 in reply to FloSupport

    The question is when failing back to primary does the firewall close all active states connected via the secondary or backup gateway?  If the sessions are left active then the phones will not work.  I dont have a firewall yet to test with as I am really trying to find if this will be a solution I can deploy.  Then I will purchase.

  • 0 in reply to Mark Gilbert

    Hi Mark,

    I suggest you talk to a reseller/partner or download your own and run a trial for a month and see where you get to . At the end of your test period please update this thread.

    Ian

  • 0 in reply to rfcat_vk

    That would not make very much sense since I have signed up as a partner reseller also since I am looking at purchasing dozens of these for my customers.  I would think the best place to go for answers with regards to technical questions about a product is to the company that actually designed manufactured and supports the device.

  • 0 in reply to Mark Gilbert

    Okay. Though these forums are no the best place for answers. The forums are a user to user base, so  most answers come from people like me, home users.

    I think you are asking a bit to specific question because of the special case you presented. While I could out the scenario because I have two VoIP services and two different ISP connections (while waiting for the infamous Australian NBN to be installed) I am not sure that is what you are looking for?

    Ian

  • 0 in reply to Mark Gilbert

    Hi Mark , 

    Could you check if this command would improve in this scenario ?

    command in console. 

    console > set routing wan-load-balancing session-persistant destination-only ip-family all

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