Netmask is not tuned correctly

bg650 · November 28, 2019

I am running Mac beta 0.5.28 (downloaded from other thread). It fixed the issue with 10% checking connectivity but when it finished scanning, it reported
Network netmask (prefix length) is not tuned correctly
Home network is too wide: 192.168.0.0/23, up to 512 devices
But this is the actual setup of my home network as I have a lot of devices. I would like to make this warning muted as it is technically correct but not a real warning going forward.

Carlo_from_Fing · November 29, 2019

Thanks for reporting. How many devices do you have?
The warning is also checking how many devices you have in order to advice if oversized, maybe we can tune it.

Btw mutable/dismissable warnings are coming in the future as well.

bg650 · November 30, 2019

So I have had issues with the standard 255 device limit with the standard /24 mask. Some of the devices have intermittent connections and tend to consume DHCP provided addresses quickly. My preference is for mutable warnings.

Robin_Ex_Fing · December 17, 2019

Thank you for this feedback and the idea. This idea has been included for the engineering team to review. Thanks again

Wobbegong · February 19, 2020

I, too, would like to be able to suppress this warning. I have well over 100 devices on my network -- there are 155 address reservations defined within my router (that are grouped by device type, with lots of gaps between them to allow for additions), with addresses from 10.0.0.1 to 10.0.0.254. Consequently, my DHCP address range is 10.0.1.1 to 10.0.1.254. So a 23-bit netmask is perfectly reasonable and correct.

InfoSec911 · July 1, 2020

This message is still wrong!!! I just upgraded to the latest 2.0.0 version. It is not the general use for many home users, but it is totally valid and used by many networking professionals. My network is most definitely tuned correctly for my needs and it uses a /23 subnet mask. It is fine to flag it, but please annotate it correctly! I have been reporting this since the first version came out and it has been wrong since day 1.

Maya · July 1, 2020

You can mute this warning @InfoSec911 if in your case it's intentional. Just click on the (?) and then mute it, it won't bother you again.

InfoSec911 · July 1, 2020

I have muted it, but that does not resolve the issue of the incorrect and inaccurate description of the issue.

InfoSec911 · July 28, 2020

2.1.0 still has not resolved this issue and still reports anything other that a 24 bit subnet mask as "not tuned correctly". This is still an inaccurate message and should be corrected.

Robin_Ex_Fing · July 28, 2020

InfoSec911 said:

2.1.0 still has not resolved this issue and still reports anything other that a 24 bit subnet mask as "not tuned correctly". This is still an inaccurate message and should be corrected.

Thanks for reporting. How many devices do you have?
The warning is also checking how many devices you have in order to advice if oversized, maybe we can tune it.

Netmask is not tuned correctly

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