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Date: Wed, 19 Sep 2018 09:04:19 -0700
From: Stephen Hemminger <stephen@networkplumber.org>
To: Anupama Laxmi <anupamalaxmi4@gmail.com>
Cc: users@dpdk.org
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Subject: Re: [dpdk-users] UDP packet source IP address modified in the KVM
 host
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On Wed, 19 Sep 2018 08:57:52 +0530
Anupama Laxmi <anupamalaxmi4@gmail.com> wrote:

> Hi,
> 
> When the DPDK UDP packets pass from guest machine to host using KVM SRIOV
> the source IP address in the IP header of the UDP packet is changed.The
> changed IP address is not configured in the host machine either.The
> ifconfig output doesn't show this IP.How this IP address can change in the
> host?what configurations do I need to check and how to prevent this IP
> address change.
> 
> Regards,
> Anupama

Are you really using KVM SRIOV or is it a virtio device with NAT?