I am using sniffer to sniff packets for a short duration say 20sec . I want to overwrite the file with new sniffed packets . Right now while saving packets both old and new packets are written into the file. After 20 sec the sniffer restarts sniffing so I want to write only packets sniffed in that duration into the file. How can I do that?
Thanks in advance.

I've never seen the behavior you describe. For me, it's always overwritten the file with each new capture.

I've never seen the behavior you describe. For me, it's always overwritten the file with each new capture.

Sir, I have written script as /interface wireless sniffer sniff wlan1 and put this into scheduler which runs for 1 min after that the next scheduler runs script to save file. Is the problem coming because we need to stop the sniffer then save file and then start sniffer again ? This way the data will be recollected. How can I stop the sniffer? I didn't find any option to stop it from script.

Hi, I have the same problem to do periodic wireless sniffs with scripts. How can we stop wireless sniffer?
START => /interface wireless sniffer sniff interface=wlan1
STOP => ??