A dumb question to understand how Wireshark works: if I monitor my inbound traffic and someone send me a packet directed to a closed port, will I see this packet in wireshark? asked 29 Oct '15, 10:32  rok |
One Answer:
Yes, unless you have a local firewall running that blocks the packet before Wireshark can record it. But without, a closed port will result in an reset packet, which you should see. answered 29 Oct '15, 10:36  Jasper ♦♦ |
could you tell me more about the reset packet? Is it the reply I send once I receive a packet directed to my closed port? I mean, if you send me a tcp packet directed to my ip:port where port is closed.. I will see it normally in wireshark, and you'll get a reset packet as response.. am I right? Thank you
Yes, if a packet arrives for a closed port your TCP stack will reply with an reset packet. You should see both in Wireshark.