joe scian
Very Senior Member
After installing and configuring Suricata, my syslog is flooded with the following:
Code:Apr 29 00:16:32 RT-AX88U-BE50 kernel: device eth0 entered promiscuous mode Apr 29 00:16:32 RT-AX88U-xxxx kernel: protocol 0800 is buggy, dev eth0 Apr 29 00:16:35 RT-AX88U-xxxx kernel: protocol 0800 is buggy, dev eth0 Apr 29 00:16:35 RT-AX88U-xxxx kernel: protocol 0800 is buggy, dev eth0 Apr 29 00:16:35 RT-AX88U-xxxx kernel: protocol 0800 is buggy, dev eth0 Apr 29 00:16:38 RT-AX88U-xxxx kernel: protocol 0800 is buggy, dev eth0 Apr 29 00:16:41 RT-AX88U-xxxx kernel: protocol 0800 is buggy, dev eth0 Apr 29 00:16:44 RT-AX88U-xxxx kernel: protocol 0800 is buggy, dev eth0 Apr 29 00:16:47 RT-AX88U-xxxx kernel: protocol 0800 is buggy, dev eth0 Apr 29 00:16:50 RT-AX88U-xxxx kernel: protocol 0800 is buggy, dev eth0 Apr 29 00:16:53 RT-AX88U-xxxx kernel: protocol 0800 is buggy, dev eth0 Apr 29 00:16:56 RT-AX88U-xxxx kernel: protocol 0800 is buggy, dev eth0 Apr 29 00:16:57 RT-AX88U-xxxx kernel: protocol 0800 is buggy, dev eth0 Apr 29 00:16:59 RT-AX88U-xxxx kernel: protocol 0800 is buggy, dev eth0 Apr 29 00:17:00 RT-AX88U-xxxx kernel: protocol 0800 is buggy, dev eth0 Apr 29 00:17:02 RT-AX88U-xxxx kernel: protocol 0800 is buggy, dev eth0 Apr 29 00:17:03 RT-AX88U-xxxx kernel: protocol 0800 is buggy, dev eth0 Apr 29 00:17:05 RT-AX88U-xxxx kernel: protocol 0800 is buggy, dev eth0 Apr 29 00:17:05 RT-AX88U-xxxx kernel: protocol 0800 is buggy, dev eth0 Apr 29 00:17:05 RT-AX88U-xxxx kernel: protocol 0800 is buggy, dev eth0 Apr 29 00:17:08 RT-AX88U-xxxx kernel: protocol 0800 is buggy, dev eth0 Apr 29 00:17:11 RT-AX88U-xxxx kernel: protocol 0800 is buggy, dev eth0 ...
ifconfig shows:
Code:eth0 Link encap:Ethernet HWaddr {MAC-ADDRESS} inet addr:{WAN-IP} Bcast:{WAN-BROADCAST} Mask:255.255.252.0 UP BROADCAST RUNNING ALLMULTI MULTICAST MTU:1500 Metric:1 RX packets:464713 errors:0 dropped:0 overruns:0 frame:0 TX packets:229411 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:531012108 (506.4 MiB) TX bytes:48786336 (46.5 MiB)
I configured /opt/etc/suricata/suricata.yaml as follows:
Code:address-groups: HOME_NET: "[192.168.222.0/24]" EXTERNAL_NET: "any" DNS_SERVERS: "[192.168.222.1]" af-packet: - interface: eth0
In addition to primary network (192.168.222.0/24), I have OpenVPN and two VLANs configured with their own subnets. Any thoughts on what might be causing the syslog errors and how to resolve?
Are you sure that eth0 is your WAN interface and NOT ppp0 ? {WAN-IP} above should be your public IP Address and Bcast should be WAN Gateway address. Mine is actually ppp0 NOT eth0