Have you used 192.168.60.200 (the subnet address) or 192.168.60.203 (the 
broadcast address for the subnet) for a device? Those addresses are reserved in 
your subnet and could cause errors in tcpdump engine. A /30 subnet only 
supports 2 hosts. 

Regards,

Ricardo 

---- Robert Blair escribió ----

>I changed three IoT devices from DHCP to static addresses so I could trace all
>three of them.
>
>when I enter "net 192.168.60.201" in the capture filter I get all traffic to
>and from the ip.
>
>If I enter "net 192.168.60.200/30" I get all fraffic from the ip addresses but
>none going to the ip addresses.  According to the documentation at
><https://wiki.wireshark.org/CaptureFilters> that syntax shoud capture all
>traffic going to and from the device.
>
>Any assistance on getting the trace to work will be appreciated.
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