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Hermes SMTP Server) with ESMTPA ID 6f8d75bce3cb16844726c664b39a4363; Thu, 28 Apr 2022 05:04:29 +0000 (UTC) Content-Type: text/plain; charset=us-ascii List-Id: Porting FreeBSD to ARM processors List-Archive: https://lists.freebsd.org/archives/freebsd-arm List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-arm@freebsd.org Mime-Version: 1.0 (Mac OS X Mail 14.0 \(3654.120.0.1.13\)) Subject: Re: Erratic ping behavior, was Re: Pi3 answers ssh only if outbound ping is running on -current From: Mark Millard In-Reply-To: <20220428023226.GA5666@www.zefox.net> Date: Wed, 27 Apr 2022 22:04:27 -0700 Cc: freebsd-arm@freebsd.org Content-Transfer-Encoding: 7bit Message-Id: <8A57B411-AA06-47F4-935D-EDF45D8DF0EC@yahoo.com> References: <8F9A6C9A-69BF-4D42-9886-A3F08BCB2EA0@yahoo.com> <506CD1A7-3D34-4E1B-AEAA-A1A819C6CC73@yahoo.com> <20220216231826.GA54961@www.zefox.net> <64138E81-2415-4D4A-A31A-D901DC53EB01@yahoo.com> <8936EFD1-F1FD-48CF-9ED3-4D42595464DC@yahoo.com> <20220313193406.GA65568@www.zefox.net> <20220314010330.GA70447@www.zefox.net> <9FA3F874-2987-44A2-A987-F905E78CCA65@yahoo.com> <20220428023226.GA5666@www.zefox.net> To: bob prohaska X-Mailer: Apple Mail (2.3654.120.0.1.13) X-Rspamd-Queue-Id: 4Kpk7W1jjWz3rNF X-Spamd-Bar: --- Authentication-Results: mx1.freebsd.org; dkim=pass header.d=yahoo.com header.s=s2048 header.b=jKMNBhA3; dmarc=pass (policy=reject) header.from=yahoo.com; spf=pass (mx1.freebsd.org: domain of marklmi@yahoo.com designates 98.137.68.204 as permitted sender) smtp.mailfrom=marklmi@yahoo.com X-Spamd-Result: default: False [-3.50 / 15.00]; RCVD_TLS_LAST(0.00)[]; ARC_NA(0.00)[]; R_DKIM_ALLOW(-0.20)[yahoo.com:s=s2048]; NEURAL_HAM_MEDIUM(-1.00)[-1.000]; FROM_HAS_DN(0.00)[]; TO_DN_SOME(0.00)[]; FREEMAIL_FROM(0.00)[yahoo.com]; MV_CASE(0.50)[]; MIME_GOOD(-0.10)[text/plain]; R_SPF_ALLOW(-0.20)[+ptr:yahoo.com]; NEURAL_HAM_LONG(-1.00)[-1.000]; TO_MATCH_ENVRCPT_SOME(0.00)[]; DKIM_TRACE(0.00)[yahoo.com:+]; RCPT_COUNT_TWO(0.00)[2]; RCVD_IN_DNSWL_NONE(0.00)[98.137.68.204:from]; NEURAL_HAM_SHORT(-1.00)[-1.000]; DMARC_POLICY_ALLOW(-0.50)[yahoo.com,reject]; MLMMJ_DEST(0.00)[freebsd-arm]; FROM_EQ_ENVFROM(0.00)[]; MIME_TRACE(0.00)[0:+]; FREEMAIL_ENVFROM(0.00)[yahoo.com]; ASN(0.00)[asn:36647, ipnet:98.137.64.0/20, country:US]; RCVD_COUNT_TWO(0.00)[2]; MID_RHS_MATCH_FROM(0.00)[]; DWL_DNSWL_NONE(0.00)[yahoo.com:dkim] X-ThisMailContainsUnwantedMimeParts: N Status: O Content-Length: 2446 Lines: 72 On 2022-Apr-27, at 19:32, bob prohaska wrote: > On Sun, Mar 13, 2022 at 09:45:02PM -0700, Mark Millard wrote: >> >> A point of testing is to compare/contrast different contexts >> instead of guessing about the alternatives. If the test >> that I proposed showed the failure, it would disprove your >> hypothesis --and it that happened it would be good to know. >> > > You're correct, as usual.... > > I just tried booting the 13.1-RC4 candidate on my Pi3 from > microSD. It exhibits the same strange "no response to inbound > ping" as before. It does seem to set time successfully using > ntp, and outbound ping works fine. > > Inbound ping from both the same (public) network and across > a NAT link from my LAN work very poorly. The NAT'd link shows > 92% packet loss, the direct link around 88% loss. > > The USB devices present are an FTDI232 and an ASMT usb-sata > bridge, neither is in active use. > > Inbound ssh connections time out, even with outbound ping > running and getting answers. Not even a password prompt. > > It's hard to believe I'm the only one seeing this...... RPi3B? RPi3B+? Which Rev? So, if I gather correctly, if I expand: FreeBSD-13.1-RC4-arm64-aarch64-RPI.img.xz onto an microsd card, boot an RPi3B with EtherNet plugged in, and test pinging to it, I will have replicated your context except for, possibly: A) RPi3B exact Model/Revision B) presence of a FTDI232 plugged into a USB2 port C) presence of a ASMT usb-sata bridge plugged into a USB2 port (no drive?) D) the details of the EtherNet network that I'd being using. (No public network or NAT in the path between machines [same local subnet, no other local subnets present], just a simple local switch, the cables, the RPi3B, whatever other computer(s) I use, and the device that provides DHCP assignments for the network.) If true, I can try such. But to get to a matching test, you would have to deal with eliminating (B-C) from the context and setting up something like (D) as the networking context. (Seems more reasonable than me trying to replicate your public network/NAT context.) Note: I would normally have a serial port connected to the proper pins for having a boot console. Once I prove I have correctly set up/booting microsd card media context, I could eliminate that. (The other end is USB but that is not what the RPi3B is connected to.) === Mark Millard marklmi at yahoo.com