Date: Mon, 25 Aug 2014 13:25:02 -0400 From: Allan Jude <allanjude@freebsd.org> To: freebsd-virtualization@freebsd.org Subject: Re: Packets from host -> virt with broken ip checksum. Message-ID: <53FB716E.3050600@freebsd.org> In-Reply-To: <CA%2BP_MZERBs_GyVjztH5yZDbkJJ3c2yu%2BPbmdyXfZnBmFKD5-rw@mail.gmail.com> References: <CA%2BP_MZEfMG-thyBvz2mQg9QWbhFh0AF285FDovxowdNfgKdNqA@mail.gmail.com> <CA%2BP_MZERBs_GyVjztH5yZDbkJJ3c2yu%2BPbmdyXfZnBmFKD5-rw@mail.gmail.com>
next in thread | previous in thread | raw e-mail | index | archive | help
This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --dJg8UMXuWixMCQ8DtbaXCWc7tJnoaJwmA Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable On 2014-08-25 05:32, Nikolay Denev wrote: > On Mon, Aug 25, 2014 at 11:01 AM, Nikolay Denev <ndenev@gmail.com> wrot= e: >> I've started playing around with Bhyve and I've noticed that I can't >> talk from the host to the virt and vice versa. >> At the same time the virt can talk to the bridged subnet. >> >> My setup is pretty simple, FreeBSD 10-STABLE (about two week old >> build), with two bce(4) interfaces in lagg0 interface. >> Then I have bridge0 and the virt's tap0 interface joined in the bridge= >> with lagg0. >> IP address is on lagg0. >> >> When I try to ping the virt from the host, tcpdump on vtnet0 shows >> incoming icmp echo requests, >> but no response. tcpdump shows bad checksums, netstat -s shows "bad >> header checksums" incrementing. >> Packes from the virt to the host seem ok, as I can try to ping from >> the virt, and I see the icmp echo req, and the reply coming back, but >> the reply is broken in this case so ping does not succeed. >> >> >> --Nikolay >=20 > So removing bridge/lagg out of the equation and configuring IP on tap0 > on the host and > another IP from the same subnet ot vtnet0 on the virt it works. >=20 > --Nikolay > _______________________________________________ > freebsd-virtualization@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-virtualization > To unsubscribe, send any mail to "freebsd-virtualization-unsubscribe@fr= eebsd.org" >=20 You might try just disabling hardware checksum offload (ifconfig bce0 -hwcsum) (on both adapters) and see if that solves the problem too --=20 Allan Jude --dJg8UMXuWixMCQ8DtbaXCWc7tJnoaJwmA Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.22 (MingW32) iQIcBAEBAgAGBQJT+3F1AAoJEJrBFpNRJZKfbE4QALATJ3Eg5I18wJ9ToDWp0vaZ Tdt6ARAr0zzEfVt0ZBVBTZIPD/vzHjLcVbIfUZ7h8bCb6JDoREupTgw96R/1dSeX 8UWEz462a6QhBi4RFTmsPg2GLPJkAL22mE7h5lAN+8Xa8H4i/JJiFD5t8YWOi0Hf PEjghuK5cftP5b7ioajzHEFGlsSIPeLNclPnmPtf61ZFF3I+2IIowU3A6ALd1GdE 24YM51/H9kjZYgQRwntVvLBqSFh6IsnH7f3FYVA9Ozc7QuokGQA/SfCpwgql0VrD PWHGUJH2Uhdj70jU+bGVIQfzavh6p4M6rlnp7TZvtJnu8Jcp/YwfKj2sWP55ant4 hohPmeXNQirG7giZxM0+UqVpbJpiJfs1w7l8cCSj3OW1QYF0BYdDnuvdbKBuz5GB ZW0n0L0FfNQbICxu7n0Oqkqu5+Kvdzu3m8qyvkUxUd6iWxbsBwY9db4v7Dc/sJ7o bKLnAArjdrg0EQv4wh4LiWiWAi0ezR7PhPvUFJhuDqxHIEZjU3E4PKL0US5y41IH 01+p1Iom5YJ1sthYfeEPKDeul5lMdKSObz2efEepGxeKnDrT2XGDZoIyMCGRMIIo M9klj3C/dUwbcQtNHe1zLRV8CVEAiLkYJLO8nvpjpf+CdfdXtANHYuB2d7xB7ve+ rB1BDusqGzexoiejc7nE =MNa3 -----END PGP SIGNATURE----- --dJg8UMXuWixMCQ8DtbaXCWc7tJnoaJwmA--
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?53FB716E.3050600>