Replaying pcap captured network traffic into OpenStack Victoria

Felipe Mogollon fmogollon at vicomtech.org
Tue Feb 14 07:43:43 UTC 2023


Hello,

I have an OpenStack Victoria with a controller+network+compute node plus a
compute node. Both nodes are working fine and I have no problem with
network traffic.

If I try to replay some previously captured traffic from a tcpdump pcap
file no traffic at all comes through qrouters.

I have tried replaying network traffic from external machine to OpenStack
and from OpenStack to external and internal machines and I have the same
negative results in all cases.

When I replay traffic from an external computer to an instance insde
OpenStack I noticed that incoming packets go to the external interface of
the qrouter but don't go passthrough to the internal interface from the
qrouter.

I have tried replaying traffic with scapy and tcpreplay and I get the same
results in both cases.

Any ideas?

Thanks

-- 
<https://www.vicomtech.org>

Juan Felipe Mogollón Rodríguez
Researcher | Investigador

fmogollon at vicomtech.org
+[34] 943 30 92 30
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