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You could look into the new divert-to mode which will not use the netmap driver, so it should have better performance in non-optimal environments.

https://docs.opnsense.org/manual/ips.html#general-setup

Thank you much. I will test it. :)

Hello,

I am setting up IPS in an OpenStack environment. It works fine when I use a single NIC, but when I use more than one NIC, I encounter the following errors:

I tried configuring the system with:

dev.netmap.buf_num = 1000000
dev.netmap.admode = 0
dev.netmap.ring_num = 256
dev.netmap.buf_size = 4096

However, it did not work. When I changed dev.netmap.admode to 2, it started working, but only in emulated mode with poor performance.

I would appreciate any advice on how to run IPS efficiently in an OpenStack environment.

Thank you.