Dear all,
I have a question related to layer 4 checksum. I am creating a UDP packet by
appending the layers in order (udp, ipv4, Eth). However, when I run Wireshark
on the receiving end I get: [UDPchecksum = missing (nor present]. Whereas, the
checksum for ipv4 works fine.
Here is what I do:
half Of Alex Markuze
> > Sent: Thursday, November 06, 2014 4:05 PM
> > To: dev at dpdk.org
> > Subject: [dpdk-dev] UDP Checksum
> >
> > Hi,
> > I'm seeing "UDP: bad checksum." messages(dmesg) for packets sent by my
> dpdk
> > app to a socket
Hi,
I'm seeing "UDP: bad checksum." messages(dmesg) for packets sent by my dpdk
app to a socket on a remote machine.
Looking at the packets the scum value is set, its just not what wireshark
expects.
When sending I'm setting these fields in the egress packets.
pkt->pkt.vlan_macip.f.l2_len
Hello,
On 11/06/2014 05:05 PM, Alex Markuze wrote:
> I'm seeing "UDP: bad checksum." messages(dmesg) for packets sent by my dpdk
> app to a socket on a remote machine.
> Looking at the packets the scum value is set, its just not what wireshark
> expects.
>
> When sending I'm setting these fields
> -Original Message-
> From: Ananyev, Konstantin
> Sent: Thursday, November 06, 2014 5:04 PM
> To: Ananyev, Konstantin
> Subject: FW: [dpdk-dev] UDP Checksum
>
>
>
> From: Alex Markuze [mailto:alex at weka.io]
> Sent: Thursday, November 06, 2014 4:27 PM
> -Original Message-
> From: dev [mailto:dev-bounces at dpdk.org] On Behalf Of Alex Markuze
> Sent: Thursday, November 06, 2014 4:05 PM
> To: dev at dpdk.org
> Subject: [dpdk-dev] UDP Checksum
>
> Hi,
> I'm seeing "UDP: bad checksum." messages(dmes
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