From mboxrd@z Thu Jan 1 00:00:00 1970 From: Thomas Monjalon Subject: Re: Wrong TCP checksum of packets sent by Linux guest (virtIO/vhost) Date: Tue, 02 Sep 2014 15:29:44 +0200 Message-ID: <1686757.iSdNo6aMGt@xps13> References: Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Cc: dev-VfR2kkLFssw@public.gmane.org To: Franck BAUDIN Return-path: In-Reply-To: List-Id: patches and discussions about DPDK List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces-VfR2kkLFssw@public.gmane.org Sender: "dev" Hi Franck, 2014-09-02 13:20, Franck BAUDIN: > I am using dpdk-ovs 1.1.0 (latest release) as follow : >=20 > linux-guest (no DPKD) <--- virtIO ---> OVDK 1.1.0 (with latest DPDK = [*]) < --- Niantic --- > linux-native >=20 [...] > UDP/ICMP connectivity is fine, but TCP checksum of packet sent by the= guest are incorrect, as showed with tcpdump on linux-native. Thanks for reporting. Could you try virtio without vhost? > This message and any attachments (the "message") are confidential, in= tended solely for the addressees. If you are not the intended recipient= , please notify the sender immediately by e-mail and delete this messag= e from your system. In this case, you are not authorized to use, copy t= his message and/or disclose the content to any other person. E-mails ar= e susceptible to alteration. Neither Qosmos nor any of its subsidiaries= or affiliates shall be liable for the message if altered, changed or f= alsified. >=20 > Ce message et toutes ses pi=C3=A8ces jointes (ci-apr=C3=A8s le "messa= ge")sont confidentiels et =C3=A9tablis =C3=A0 l'intention exclusive de = ses destinataires. Si vous avez re=C3=A7u ce message par erreur, merci = d=E2=80=99en informer imm=C3=A9diatement son =C3=A9metteur par courrier= =C3=A9lectronique et d=E2=80=99effacer ce message de votre syst=C3=A8m= e. Dans cette hypoth=C3=A8se, vous n=E2=80=99=C3=AAtes pas autoris=C3=A9= =C3=A0 utiliser, copier ce message et/ou en divulguer le contenu =C3=A0= un tiers. Tout message =C3=A9lectronique est susceptible d'alt=C3=A9ra= tion. Qosmos et ses filiales d=C3=A9clinent toute responsabilit=C3=A9 a= u titre de ce message s'il a =C3=A9t=C3=A9 alt=C3=A9r=C3=A9, d=C3=A9for= m=C3=A9 ou falsifi=C3=A9. This big disclaimer block has no sense on a public mailing list. Please try to remove it. Thanks --=20 Thomas