Hi David,

I read up about multipath routing and ecmp. It seems to do what I am looking for.

Thank you
Markus

-----Original Message----- From: David Ahern
Sent: Sunday, July 7, 2019 2:24 PM
To: Markus Moeller ; netdev@vger.kernel.org
Subject: Re: More complex PBR rules

On 7/6/19 5:06 PM, Markus Moeller wrote:
Hi Network developers

I am new to this group and wonder if you can advise how I could
implement more complex PBR rules to achieve for example load balancing.
The requirement I have is to route based on e.g. a hash like:

 hash(src-ip+dst-ip) mod N  routes via  gwX    0<X<=N   ( load balance
over N gateways )

Have you tried multipath routing? Does that not work for you?


 This would help in situations where I can not use a MAC for identifying
a gateway  ( e.g. in cloud environments) .

Could someone point me to the kernel source code where PBR is performed ?


net/core/fib_rules.c


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