Shorewall on EL10

Simon Matter via Shorewall-users <[email protected]> Thu, 25 Sep 2025 15:14:34 +0200
Newsgroups gmane.comp.security.shorewall
Message-ID <ace4808708c8ec596cc2b77c8adbd441.20250925151434.1758806074@xxl.corp.invoca.ch>
Hi,

I'm trying to migrate an old firewall to AlmaLinux 10 (RHEL10 compatible).
I'm having problems with the traffic shaping like this:

Setting up Traffic Control...
Error: TC classifier not found.
We have an error talking to the kernel
   ERROR: Command "tc filter add dev enp4s0 parent ffff: protocol all prio
10 estimator 250ms 4sec basic police avrate 500000kbit drop" Failed

Does anybody have ideas what could be wrong here?

Regards,
Simon