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You likely have enabled promiscuous mode on a vLAN interface, which will crash the interface if IDS is enabled. Disable promiscuous mode on all vLANs and then open the parent (Physical) interfaces that you wish to monitor that have vLANs, check Promiscuous mode > check Overwrite Global Settings > Check the three boxes for CRC, TSO, LRO offloading > Save > Restart Suricata.
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Intrusion Detection and Prevention / Re: IDS results in hundreds of errors like netmap_transmit hwcur hwtail
July 24, 2025, 01:55:19 AM
You likely have enabled promiscuous mode on a vLAN interface, which will crash the interface if IDS is enabled. Disable promiscuous on all vLANs > Save and Apply settings > and then open the parent (Physical) interfaces that you wish to monitor that have vLANs, check Promiscuous > check Overwrite Global Settings > Check the three boxes for CRC, TSO, LRO offloading > Save and Apply settings > Restart Suricata.
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