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2019-11-05 17:28:38 -0500 问了问题 Enabling promiscous mode

Hi, I need to set up a compute node to sniff all network traffic on my openstack sub-net. However, after enabling promiscuous mode on the interface (eth0) and adding the subnet (10.2.0.0/24) to the "allowed address pairs" (or individual IP/MAC combinations of the other nodes on the subnet), I still cannot see the traffic to/from other compute nodes on the subnet. How can I enable true promiscuous network monitoring in a compute node?

Note: I am using Centos images for my compute nodes and tcpdump and tshark to detect traffic.