> On 24 Mar, 2019, at 12:05 pm, Pete Heist <[email protected]> wrote:
> 
> tcpdump -r file.pcap udp port 2112 and greater 80 and "ip[1] != 0x1”
> 
> “greater 80” ignores the handshake packets and 0x1 is whatever TOS value we 
> want to make sure the packets contain. We can use different filters for other 
> traffic.

Bear in mind that the TOS byte contains ECN as well as DSCP fields, and the 
latter is left-justified.

 - Jonathan Morton

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