Date: Mon, 4 Mar 2019 13:19:08 +0100 From: "Patrick M. Hausen" <hausen@punkt.de> To: Eugene Grosbein <eugen@grosbein.net> Cc: FreeBSD Net <freebsd-net@freebsd.org> Subject: Re: TCP-forwarding with netcat - weird failures ... Message-ID: <C0F379B2-540A-4D39-9390-964F64B5EFCF@punkt.de> In-Reply-To: <a9a82e56-f7a7-97dd-86ba-948d91704ca2@grosbein.net> References: <D3EF7ABA-7674-4F7B-8ED2-21CED3BFB975@punkt.de> <a9a82e56-f7a7-97dd-86ba-948d91704ca2@grosbein.net>
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Hi Eugene, > Am 04.03.2019 um 12:21 schrieb Eugene Grosbein <eugen@grosbein.net>: >=20 > 04.03.2019 17:43, Patrick M. Hausen wrote: >=20 >> Needless to say: doesn=E2=80=99t work. And no, it=E2=80=99s not the = obvious ARP caches. >> Connections can be established but then abort spontaneously without >> an observable pattern or reason. >=20 > Each "abort" of TCP connection has its own distinct reason: > TCP FIN or TCP RST or ICMP unreach or timeout etc. >=20 > You need to start collecting packet captures with "tcpdump -npw = file.pcap" > Without such details, noone can tell you what's your reason out of = hundreds possible. You are of course right. We=E2=80=99ll start running both VMs in = parallel on Wednesday to do exactly that. Kind regards Patrick --=20 punkt.de GmbH Internet - Dienstleistungen - Beratung Kaiserallee 13a Tel.: 0721 9109-0 Fax: -100 76133 Karlsruhe info@punkt.de http://punkt.de AG Mannheim 108285 Gf: Juergen Egeling
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