From mboxrd@z Thu Jan 1 00:00:00 1970 From: Thomas Glanzmann Date: Tue, 11 Apr 2017 13:50:41 +0000 Subject: Re: pppoe encapsulated udp packets which appear on ethernet disappear between pppoe and ppp0 after p Message-Id: <20170411135041.GA30428@glanzmann.de> List-Id: References: <20170410183851.GA4442@glanzmann.de> In-Reply-To: <20170410183851.GA4442@glanzmann.de> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit To: linux-ppp@vger.kernel.org Hello Michael, > It sounds like they aren't part of the correct PPPoE session to me. > As if the other end is not killing it's PPP session when the new one forms. wow. You nailed it. Thank you for identifying the root cause. I'll open a call with German Telekom to fix there ppp endpoint. (x1) [~/pcaps] tshark -nr eth1.pcap -T fields -e 'pppoe.session_id' | sort -u 0x0000b53b 0x0000b5e0 0x0000b7b3 These are exactly the packages I was missing: (x1) [~/pcaps] tshark -nr eth1.pcap -Y 'pppoe.session_id = 0x0000b5e0' 2938 12.176318 88.198.215.20 → 217.92.232.50 UDP 118 5000 → 5000 Lenh 5247 21.951571 88.198.215.20 → 217.92.232.50 UDP 118 5000 → 5000 Lenh 5248 21.952077 88.198.215.20 → 217.92.232.50 UDP 118 5000 → 5000 Lenh 5802 31.641323 88.198.215.20 → 217.92.232.50 UDP 118 5000 → 5000 Lenh 5803 31.641807 88.198.215.20 → 217.92.232.50 UDP 118 5000 → 5000 Lenh Cheers, Thomas