Date: Thu, 01 Feb 2024 23:28:26 +0000 From: bugzilla-noreply@freebsd.org To: net@FreeBSD.org Subject: [Bug 276760] vtnet driver incorrectly calculates checksums Message-ID: <bug-276760-7501-8ZdculZI0e@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-276760-7501@https.bugs.freebsd.org/bugzilla/> References: <bug-276760-7501@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D276760 Miroslav Lachman <000.fbsd@quip.cz> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |000.fbsd@quip.cz --- Comment #3 from Miroslav Lachman <000.fbsd@quip.cz> --- I think I have related experience with csum vtnet bug. On one VM (in KVM) w= ith 2 vtnet NICs IPsec VPN the packets are not going thru until I disabled csum= on "LAN" NIC vtnet1: ifconfig_vtnet0=3D"inet AA.BB.CC.DD netmask 255.255.255.128" ifconfig_vtnet1=3D"inet WW.XX.YY.ZZ/24 -rxcsum -txcsum" This machine works like an IPsec gateway, vtnet0 is facing the internet, vt= net1 connects private network with clients connecting thru IPsec. Without -rxcsum -txcsum on vtnet1 the client machines cannot connect to anything in the outside world. First discovered with FreeBSD 12.3 (installed in the VM), later upgraded to 13.2. --=20 You are receiving this mail because: You are the assignee for the bug.=
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