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SIP fails after uplink was down

MKrumm
Dear community,

we are using an ASG and experience some serious difficulties using a hosted PBX solution via SIP (with and without TLS).
We set up a SNAT rule that works quite well until an uplink interface goes down (our connections are some kind of instable so this problem occurs quite often). When the uplink is back up our phones do not reconnect and we must (!) switch to a rule bound to another uplink interface which results in working phones. 
It would be wonderful if it would be possible to solve the problem or to at least automate switching rules (at best: event based. At least: time based [cron?]).

Hope someone can help!
Thanks in advance
Michael


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  • 0
    Hello Bob,

    configuration is:

    Traffic Source: internal network
    Traffic Service: [required port range]
    Traffic Destination: provider network

    NAT mode: SNAT (Source)

    Source: Uplink Interface 1 (Adress)
    Source Service: [EMPTY]

    Automatic Firewall rule: [checked]

    Rest is empty.
    The other NAT Rule is the same except Uplink interface 2 is used.
    We are using Uplink Balancing.

    Best wishes
    Michael
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  • 0
    Hello Bob,

    configuration is:

    Traffic Source: internal network
    Traffic Service: [required port range]
    Traffic Destination: provider network

    NAT mode: SNAT (Source)

    Source: Uplink Interface 1 (Adress)
    Source Service: [EMPTY]

    Automatic Firewall rule: [checked]

    Rest is empty.
    The other NAT Rule is the same except Uplink interface 2 is used.
    We are using Uplink Balancing.

    Best wishes
    Michael
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