Hi<br><br>I have observed a strange behaviour. I made a simple sniffing application using winpcap. In that application I am retrieving the protocol Id field of IP packet and printing it. it is working fine but it seems to be not capturing the ICMP protocol. Moreover, when I run this application I am not able to ping the host running the application from other hosts but as soon as I close the application other hosts starts pining the application running host. Could anyone explain me this please.
<br><br>Thank you <br><br>Ahsan<br>