[Bug 165059] vtnet(4): Networking breaks with a router using virtio net driver on KVM host

From: <bugzilla-noreply_at_freebsd.org>
Date: Thu, 19 Dec 2024 18:19:33 UTC 
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=165059

--- Comment #35 from John Nielsen <john@jnielsen.net> ---
I run a FreeBSD 14-STABLE router with vtnet under KVM on Arch Linux. I don't
disable any checksums or do any other special configuration. I have NOT
encountered this issue. The router uses IPFW and does NAT for several subnets
(each of which is a different VLAN+bridge on the host and a distinct vtnet
interface on the FreeBSD guest). That said if someone has specific failure
cases or ways to reproduce I can help test.

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