You should disable them if you need real packets. Alfredo
> On 22 Oct 2014, at 00:00, Pavel Odintsov <[email protected]> wrote: > > Hello! > > Yep, it enabled :( > > ethtool -k eth3 > Features for eth3: > rx-checksumming: on > tx-checksumming: on > tx-checksum-ipv4: on > tx-checksum-unneeded: off [fixed] > tx-checksum-ip-generic: off [fixed] > tx-checksum-ipv6: on > tx-checksum-fcoe-crc: off [fixed] > tx-checksum-sctp: on > scatter-gather: on > tx-scatter-gather: on > tx-scatter-gather-fraglist: off [fixed] > tcp-segmentation-offload: on > tx-tcp-segmentation: on > tx-tcp-ecn-segmentation: off [fixed] > tx-tcp6-segmentation: on > udp-fragmentation-offload: off [fixed] > generic-segmentation-offload: on > generic-receive-offload: on > large-receive-offload: on > rx-vlan-offload: on > tx-vlan-offload: on > ntuple-filters: off > receive-hashing: on > highdma: on [fixed] > rx-vlan-filter: on [fixed] > vlan-challenged: off [fixed] > tx-lockless: off [fixed] > netns-local: off [fixed] > tx-gso-robust: off [fixed] > tx-fcoe-segmentation: off [fixed] > fcoe-mtu: off [fixed] > tx-nocache-copy: on > loopback: off [fixed] > > I disabled it completely with commands: ethtool -K eth0 gro off gso off tso > off > > On Wed, Oct 22, 2014 at 1:35 AM, Alfredo Cardigliano > <[email protected]> wrote: >> Hi Pavel >> do you have tso/gso enabled perhaps? (please check with ethtool -k ethX) >> >> Alfredo >> >>> On 21 Oct 2014, at 11:19, Pavel Odintsov <[email protected]> wrote: >>> >>> Hello! >>> >>> I use PF_RING packets parser and got very strange packets size in >>> network with stadnard MTU (1500): >>> 2014-10-16 03:32:50.483384 188.120.233.239:39393 > 5.45.118.135:80 >>> protocol: tcp size: 66 bytes >>> 2014-10-16 03:32:50.483385 188.120.233.239:39393 > 5.45.118.135:80 >>> protocol: tcp size: 66 bytes >>> 2014-10-16 03:32:50.483386 188.120.233.239:39393 > 5.45.118.135:80 >>> protocol: tcp size: 66 bytes >>> 2014-10-16 03:32:50.483415 5.45.118.135:80 > 188.120.233.239:39393 >>> protocol: tcp size: 14550 bytes >>> 2014-10-16 03:32:50.483430 188.120.233.239:39393 > 5.45.118.135:80 >>> protocol: tcp size: 66 bytes >>> 2014-10-16 03:32:50.483435 5.45.118.135:80 > 188.120.233.239:39391 >>> protocol: tcp size: 1518 bytes >>> 2014-10-16 03:32:50.483457 5.45.118.135:80 > 188.120.233.239:39391 >>> protocol: tcp size: 5862 bytes >>> 2014-10-16 03:32:50.483482 5.45.118.135:80 > 188.120.233.239:39391 >>> protocol: tcp size: 1518 bytes >>> 2014-10-16 03:32:50.483515 5.45.118.135:80 > 188.120.233.239:39392 >>> protocol: tcp size: 1518 bytes >>> 2014-10-16 03:32:50.483518 5.45.118.135:80 > 188.120.233.239:39391 >>> protocol: tcp size: 1518 bytes >>> 2014-10-16 03:32:50.483526 188.120.233.239:39392 > 5.45.118.135:80 >>> protocol: tcp size: 66 bytes >>> >>> Full list: https://gist.github.com/pavel-odintsov/6aac022b8f6eebd284ff >>> >>> I got h->len from pfring_pkthdr *h struct with no processing. How it >>> possible? >>> >>> -- >>> Sincerely yours, Pavel Odintsov >>> _______________________________________________ >>> Ntop-misc mailing list >>> [email protected] >>> http://listgateway.unipi.it/mailman/listinfo/ntop-misc >> >> _______________________________________________ >> Ntop-misc mailing list >> [email protected] >> http://listgateway.unipi.it/mailman/listinfo/ntop-misc > > > > -- > Sincerely yours, Pavel Odintsov > _______________________________________________ > Ntop-misc mailing list > [email protected] > http://listgateway.unipi.it/mailman/listinfo/ntop-misc _______________________________________________ Ntop-misc mailing list [email protected] http://listgateway.unipi.it/mailman/listinfo/ntop-misc
