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  • November 16, 2020 at 8:16 pm #2140700

    Can’t send data across a subnet

    by shaggy1405 · about 3 years, 11 months ago

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    I have an large subnet of 10.89.160/21
    Allowing ip range of 10.89.160.1 – 10.89.167.254
    Gateway of 10.89.160.1
    I Can ping from e.g 10.89.162.34 to 10.89.162.60
    But can’t ping from 10.89.165.30 to 10.89.163.5 again gateway of 10.89.160.1

    Any ideas

    Shaggy1405

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    • November 20, 2020 at 7:17 pm #2416223

      Subnet mask is likely set incorrectly.

      by spetryschuk · about 3 years, 10 months ago

      In reply to Can’t send data across a subnet

      Are the IPs static, or distributed via DHCP?

      It sounds to me like the devices are configured with the wrong subnet mask – likely configured as a /24 rather than your desired /21.

      If you review the configuration on one of your devices (using the network configuration GUI or ipconfig / ifconfig depending on OS), you can confirm this suspicion.

      Also check to ensure your DHCP server is handing out the correct subnet mask.

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