DDNS Update with Public IP for cellular interface don't work bug

PeterUK
PeterUK Posts: 2,704  Guru Member
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edited May 2023 in Security

VPN300 V5.36(ABFC.2)

With a DDNS setup for cellular1 interface there is no update check happening to site check like:

http://ip1.dynupdate.no-ip.com/

Which should check every 5 minutes

However other interfaces for DDNS do check every 5 minutes just not cellular1 interface.

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  • PeterUK
    PeterUK Posts: 2,704  Guru Member
    First Anniversary 10 Comments Friend Collector First Answer

    Ok solved it!

    So I have a routing rule:

    incoming ZyWALL

    service HTTP

    next hop VLAN443

    I have DDNS going out VLAN 443 and ge4 the HTTP check works fine regardless of the above rule but not for the cellular1 so I made this rule above the rule above:

    incoming ZyWALL

    source address 192.168.8.100

    service HTTP

    next hop cellular1

    Now it works

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