[Oisf-users] Question on IP Tables and Bridged interface with AF-Packet

Edwin van Vliet edwin.vanvliet at fox-it.com
Thu Feb 14 13:39:01 UTC 2019


Albert wrote:
> The problem becomes apparent when Suricata matches an IP Address which
> is part of one of the groups in the iptables ruleset.  Suricata sees it, but
> the IP Tables rules do not detect it.

Is the br_netfilter kernel module loaded? Bridges are kind of special.
You need to set the net.bridge.bridge-nf-call-iptables sysctl setting if you want to filter your bridges.

Edwin


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