Stumpled upon this question while investigating some 'received-errors' at an interface. All the investigated interfaces (ix0 at different opnsense boxes) are connected to a (different) switch with one untagged and a couple of tagged vlans.
The untagged root interface (ix0) on some boxes shows the flag 0x8863 and on the other boxes 0x8963. All tagged interfaces (ix0_vlanX) show the flag 8x8843.
My first guess was the flag is representing the EtherType, but the only corresponding number i found was 0x8863 (PPPoE Discovery Stage). So i think, i am at the wrong way. Can someone point me to the right direction?
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FYI:
The investigated errors seemed to caused by 802.3 eee. After disabling 802.3 eee at the switch ports the errors are stopped.
glad you solved your issues
about flags: afaik they are the same as for ifconfig -a
lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST>
(hex representation of alphabetical interface properties)
something like
https://www.ibm.com/support/pages/how-hexadecimal-flags-displayed-ifconfig-are-calculated
Thanks, that matches, but leads me to a new issue. Why are some interfaces (0x8963) in promiscuous mode (0x0100)? - At the interface configuration page the 'Promiscuous mode' checkbox is not checked.
Are you runnning a DHCP server on those? ;)
Yes, there is a DHCP server at all ix0 interfaces, but onle some are in the promiscuous mode.
IDS? There are many things that could cause this. DHCP used to be one, but if not all interfaces show promisc, then that seems to have changed.
IDS is off for all boxes. I try to keep configuration of all running boxes the same way, that is why i stumbled about this.