[Oisf-users] Packet Fanout on CentOS 7?

[Peter Manev]

On 17 Nov 2019, at 02:46, Cloherty, Sean E <scloherty at mitre.org> wrote:
> 
> 
> After taking the Advanced Deployment and Architecture class I was fired up with ideas for improvements in my own environment.  I want to use the cluster_qm mode and match worker/CPUs/RSS queues in CentOS 7.  Has anyone been able to get this working on CentOS 7 or should I start migrating to CentOS 8?  The kernel is 3.10.0-1062.4.1.el7.x86_64, running Suricata 5.0.0 and I was able to set the hash key and the hash functions correctly (I think) -
>  
> RSS hash key:
> 6d:5a:6d:5a:6d:5a:6d:5a:6d:5a:6d:5a:6d:5a:6d:5a:6d:5a:6d:5a:6d:5a:6d:5a:6d:5a:6d:5a:6d:5a:6d:5a:6d:5a:6d:5a:6d:5a:6d:5a
> RSS hash function:
>     toeplitz: on
>     xor: off
>     crc32: off
>  
>  
> When I start Suricata all the messages look good until it gets to AFP when it gives me the message –
>  
> 7/11/2019 -- 14:10:43 - <Notice> - all 16 packet processing threads, 4 management threads initialized, engine started.
> 7/11/2019 -- 14:10:43 - <Error> - [ERRCODE: SC_ERR_AFP_CREATE(190)] - Couldn't set fanout mode, error Invalid argument
> 7/11/2019 -- 14:10:43 - <Error> - [ERRCODE: SC_ERR_AFP_CREATE(190)] - Couldn't init AF_PACKET socket, fatal error
> 7/11/2019 -- 14:10:43 - <Error> - [ERRCODE: SC_ERR_FATAL(171)] - thread W#01-ens1f1 failed
>  

I’ve never tried it CentOS 7 but would recommend trying  8.
What NIC is that ? (think you mentioned Intel but wasn’t sure what driver/model)

Just to be in the safe side - “-T” (test) run passes ok too? (And there are no other Suri running on the same interface ?)


> I did take a look at the test script “can-i-use-afpacket-fanout” but my sensors have no internet connection so I am not able to use it via GO. Is there another way to run this if I downloading it manually ?
>  
>  
> Thanks,
>  
> Sean
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