Date: Mon, 19 Sep 2022 10:04:35 +0000 From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 266493] ARP Network Problems Message-ID: <bug-266493-227@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D266493 Bug ID: 266493 Summary: ARP Network Problems Product: Base System Version: 13.1-RELEASE Hardware: amd64 OS: Any Status: New Severity: Affects Only Me Priority: --- Component: kern Assignee: bugs@FreeBSD.org Reporter: s.frommeyer@tarent.de Created attachment 236682 --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=3D236682&action= =3Dedit The screenshot shows that the network only operates for short periods of ti= me. We have not figured out why the state is not constant After updating our firewall cluster (2 identical machines) from OPNsense version 21.7.8 to 22.7 (HardenedBSD 12.1 -> FreeBSD 13.1) we have problems reaching devices via icmp. To exclude OPNsense here, we started the same system without the applicatio= n, using replicated interfaces with the same result. We were able to trace the problems to arp resolution. For some network devi= ces, arp resolution never works, for some devices it works partially while other devices show no problems at all. With tcpdump we can see that arp requests are being generated but arp repli= es are not received. For some devices the situation resolves by itself or arp resolution goes into a flapping state, with periods where arp replies are b= eing received for some time. We are able to resolve all issues by using static arp entries. ICMP works directly with static arp entries. --=20 You are receiving this mail because: You are the assignee for the bug.=
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