Can’t send data across a subnet

By Shaggy1405 ·
Tags: Networking
I have an large subnet of 10.89.160/21
Allowing ip range of -
Gateway of
I Can ping from e.g to
But can’t ping from to again gateway of

Any ideas

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Subnet mask is likely set incorrectly.

by spetryschuk In reply to Can’t send data across a ...

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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