Connecting Cellular device

Gayanll
Gayanll Posts: 14 image  Freshman Member
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edited April 2021 in Security
I connected a 3G modem to my USG20-VPN.
It shows up "Device Ready" in Interface summary display.

But when i click connect to network, my internet is not working anymore.
  • Cellular connection is made, and signal is good.
  • WAN1 is up and working
  • Sometime just load only Google.com, but none of other websites are working.
I didn't setup and load-balancing or other routes.

What i want to achieve is a Policy route to forward Youtube traffic from LAN1 to 3G modem.

Is setup of a Load-balancing trunk is essential? What am i doing wrong?

Accepted Solution

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  • PeterUK
    PeterUK Posts: 4,152 image  Guru Member
    250 Answers 2500 Comments Friend Collector Eighth Anniversary
    So the way I said didn't work?
    https://businessforum.zyxel.com/discussion/comment/14079/#Comment_14079
  • Gayanll
    Gayanll Posts: 14 image  Freshman Member
    First Comment Friend Collector Second Anniversary
    PeterUK said:
    So the way I said didn't work?
    https://businessforum.zyxel.com/discussion/comment/14079/#Comment_14079
    Yes it worked, but now im facing this issue i cant figure out.
  • Zyxel_Stanley
    Zyxel_Stanley Posts: 1,398 image  Guru Member
    100 Answers 1000 Comments Friend Collector Eighth Anniversary

    Hi @Gayanll  

    Is any specific routing created on your device?

    Can you take screenshot on policy route setting and interface status summary.

    We can check if any routing effects your network.

  • Gayanll
    Gayanll Posts: 14 image  Freshman Member
    First Comment Friend Collector Second Anniversary
    Zyxel_Stanley said:

    Hi @Gayanll  

    Is any specific routing created on your device?

    Can you take screenshot on policy route setting and interface status summary.

    We can check if any routing effects your network.

    So i noticed Sometimes i get the internet to my devices, but still its very slow.
    I have attached few screen shots;

    Policy Routes : To direct youtube traffic to Cellular network.


    Interface Summery


    Security Policys


    Log : I Don't know why it occurs, Destination is my Public IP.








  • PeterUK
    PeterUK Posts: 4,152 image  Guru Member
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    Gayanll said:

    What i want to achieve is a Policy route to forward Youtube traffic from LAN1 to 3G modem.

    Your screenshot shows lan2

    Youtube have many more URL's so you could make a group with

    *.Youtu.be

    *.googlevideo.com

    *.youtube.com

    and many more like ads.

    You are likely using SYSTEM_DEFAULT_WAN_TRUNK with Least Load First so some traffic will go out WAN and some out Cellular but a routing rule overrides this.



  • PeterUK
    PeterUK Posts: 4,152 image  Guru Member
    250 Answers 2500 Comments Friend Collector Eighth Anniversary

    Another problem you might have is ISP1 by wan1 CDN and ISP2 by Cellular CDN may not like trying to get video over Cellular using ISP1 DNS on wan1.

    So in settings > system > DNS for Domain Zone Forwarder add *.googlevideo.com with DNS server from ISP Cellular to do *.googlevideo.com lookups over Cellular.


  • Gayanll
    Gayanll Posts: 14 image  Freshman Member
    First Comment Friend Collector Second Anniversary
    PeterUK said:

    Another problem you might have is ISP1 by wan1 CDN and ISP2 by Cellular CDN may not like trying to get video over Cellular using ISP1 DNS on wan1.

    So in settings > system > DNS for Domain Zone Forwarder add *.googlevideo.com with DNS server from ISP Cellular to do *.googlevideo.com lookups over Cellular.


    Thanks for the reply. Now youtube rule works fine, the issue is whole internet drops at random intervals.

    When internet is working, everthing is fine.
  • PeterUK
    PeterUK Posts: 4,152 image  Guru Member
    250 Answers 2500 Comments Friend Collector Eighth Anniversary
    Maybe your ISP line is dropping caused by a bad line?

    Make two routing rules one with incoming Interface member LAN2 then destination the IP 8.8.8.8 next hop type Interface to 3G USB and one with incoming Interface member LAN2 then destination the IP 8.8.4.4 next hop type Interface to Wan1.

    Run two ping lines on your PC one to 8.8.8.8 and one to 8.8.4.4 to check each connection.


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