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2022-04-06 10:37:05 +0000 edited question dumpcap vlan and pppoes and tcp on Ubuntu 20.04 not work

dumpcap vlan and pppoes and tcp on Ubuntu 20.04 not work Dear all Using ubuntu 20.04 to capture traffic which have : vla

2022-04-06 10:36:56 +0000 edited question dumpcap vlan and pppoes and tcp on Ubuntu 20.04 not work

dumpcap vlan and pppoes on Ubuntu 20.04 not work Dear all Using ubuntu 20.04 to capture traffic which have : vlan and pp

2022-04-06 10:10:28 +0000 asked a question dumpcap vlan and pppoes and tcp on Ubuntu 20.04 not work

dumpcap vlan and pppoes on Ubuntu 20.04 not work Dear all Using ubuntu 20.04 to capture traffic which have : vlan and pp

2021-12-27 04:04:25 +0000 asked a question tshark display decrypted Quic Hex without using -x

tshark display decrypted Quic Hex without using -x Nice to meet you tshark ( and wireshark also) sometimes does not pars

2021-10-30 09:09:36 +0000 commented question Strange Tcp RST flow

@André : you are right, modem is NAT router. i think, something was wrong with the application. thank you so much

2021-10-29 03:06:15 +0000 edited question Strange Tcp RST flow

Strange Tcp RST flow Dear all This is not Wireshark problem but hope i can have professional advice about this Strange

2021-10-29 03:05:21 +0000 asked a question Strange Tcp RST flow

Strange Tcp RST flow Dear all This is not Wireshark problem but hope i can have professional advice about this Strange

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2021-10-28 01:15:27 +0000 answered a question Capture filter pppoes does not work as expected

Dear First of all, thanks all for your help. @cmaynard : thank you so much for your wonderful explain. i have gain use

2021-10-28 01:09:34 +0000 marked best answer Capture filter pppoes does not work as expected

Dear I try to capture packet from customer which has byte end by 1. my capture has two part : packet send and recevied. The first part like this :

( ether dst 00:00:00:00:00:01 and pppoes and ip[19:1]&0x0f=0x01 )

This capture filter works well The second part

( ether src 00:00:00:00:00:01 and pppoes and ip[15:1]&0x0f=0x01 )

This capture filter works well also But when combine two of them : the filter bar is red ( seems that wrong syntax filter )

( ether dst 00:00:00:00:00:01 and pppoes and ip[19:1]&0x0f=0x01 ) or ( ether src 00:00:00:00:00:01 and pppoes and ip[15:1]&0x0f=0x01 )

Please help me to fix the capture filter syntax Thank so much

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2021-10-27 10:40:28 +0000 edited question Capture filter pppoes does not work as expected

Capture filter does not work Dear I try to capture packet from customer which has byte end by 1. my capture has two part

2021-10-27 08:01:29 +0000 asked a question Capture filter pppoes does not work as expected

Capture filter does not work Dear I try to capture packet from customer which has byte end by 1. my capture has two part