This looks correct to me.
noreply.meraki.com has no DMARC record, so the parent's domain policy will apply. The DMARC policy for meraki.com is:
v=DMARC1;p=none;pct=100;ri=3600;
The policy is "none" (p=none), so anyone processing DMARC should do nothing.
A quick Google search of Khorus and Lithium suggests it doesn't support any kind of DMARC configuration.