Subnet conflict..?

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Gayanll
Gayanll Posts: 14 image  Freshman Member
First Comment Friend Collector Second Anniversary
edited April 2021 in Security
I recently connected a 3G modem to my USG 20-VPN. Now i keep getting this warning.

what should i do? I feel like my network just got a bit slow too.

thanks

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  • jasailafan
    jasailafan Posts: 193 image  Master Member
    5 Answers First Comment Friend Collector Sixth Anniversary
    What are the IP address of the cellular interface and lan1/lan2/dmz/guest interfaces?
  • Gayanll
    Gayanll Posts: 14 image  Freshman Member
    First Comment Friend Collector Second Anniversary
    jasailafan said:
    What are the IP address of the cellular interface and lan1/lan2/dmz/guest interfaces?
    Cellular interface having public IP by ISP 10.65.xx.Xx

    lan1 is 192.168.1.Xxx
    there is no Lan2,dmz,guest
  • PeterUK
    PeterUK Posts: 4,264 image  Guru Member
    250 Answers 2500 Comments Friend Collector Eighth Anniversary
    edited June 2020
    So you need to change lan1 IP to not conflict with cellular.
  • Zyxel_Stanley
    Zyxel_Stanley Posts: 1,435 image  Zyxel Employee
    100 Answers 1000 Comments Friend Collector Eighth Anniversary

    Hi @Gayanll  

    Some of dongles have default IP address with 192.168.1.X.

    It has conflicted to default LAN1 IP address.

    Please try to change LAN1 IP address to other subnet and check if it has improved this situation.

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

    Hi @Gayanll  

    Some of dongles have default IP address with 192.168.1.X.

    It has conflicted to default LAN1 IP address.

    Please try to change LAN1 IP address to other subnet and check if it has improved this situation.

    Okey i will do like that.

    just curious can i change the dongle’s IP instead?
  • Zyxel_Stanley
    Zyxel_Stanley Posts: 1,435 image  Zyxel Employee
    100 Answers 1000 Comments Friend Collector Eighth Anniversary
    You can try to plug-in the dongle to your PC and check if there is Web interface for change IP address.
    But it may not support for all of dongles.
  • Gayanll
    Gayanll Posts: 14 image  Freshman Member
    First Comment Friend Collector Second Anniversary
    So i changed my LAN1 IP address range.
    now its 192.168.2.XX as shown;


    But i still gets the same error 
    "Subnet Conflict!! Please do not use 192.168.1.X. Cellular1 has been inserted Huawei unknown"
  • Gayanll
    Gayanll Posts: 14 image  Freshman Member
    First Comment Friend Collector Second Anniversary
    Thanks

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