[ovs-discuss] Handling ARP flows

Ben Pfaff blp at nicira.com
Thu Mar 27 23:49:30 UTC 2014

On Thu, Mar 27, 2014 at 07:31:31PM -0400, John Thoe wrote:
> >> I see ICMP requests to the bridge but no replies.. I have reverse flow
> >> set up from local to the input port and that is why I am confused.
> >
> > You mean, when you tcpdump br0 (or whatever the name of your bridge is),
> > you see the ICMP request but not the reply?
> yeah..?

At that point, the packet has passed out of the domain of Open vSwitch
into the kernel IP stack, so you need to consider reasons why the kernel
IP stack would not respond to an ICMP packet: routing, etc.

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