Hi list :) We have noticed our monitoring systems are reporting and alerting the wrong data for OpenBSD Interface Discards since adding all the OpenBSD firewalls to our new Monitoring system.
And we have proven that it is SNMPD which is returning the same value for every single interface with; root@intermap:/opt/observium# snmpwalk -v2c -c <community> 10.10.4.3 IF-MIB::ifInDiscards IF-MIB::ifInDiscards.1 = Counter32: 10837445 IF-MIB::ifInDiscards.2 = Counter32: 10837445 IF-MIB::ifInDiscards.3 = Counter32: 10837445 IF-MIB::ifInDiscards.4 = Counter32: 10837468 IF-MIB::ifInDiscards.5 = Counter32: 10837468 IF-MIB::ifInDiscards.6 = Counter32: 10837468 IF-MIB::ifInDiscards.7 = Counter32: 10837468 IF-MIB::ifInDiscards.8 = Counter32: 10837468 IF-MIB::ifInDiscards.9 = Counter32: 10837468 IF-MIB::ifInDiscards.10 = Counter32: 10837468 IF-MIB::ifInDiscards.11 = Counter32: 10837468 IF-MIB::ifInDiscards.12 = Counter32: 10837468 IF-MIB::ifInDiscards.13 = Counter32: 10837468 IF-MIB::ifInDiscards.14 = Counter32: 10837468 IF-MIB::ifInDiscards.15 = Counter32: 10837468 IF-MIB::ifInDiscards.16 = Counter32: 10837468 IF-MIB::ifInDiscards.17 = Counter32: 10837468 IF-MIB::ifInDiscards.18 = Counter32: 10837468 IF-MIB::ifInDiscards.19 = Counter32: 10837468 So it seems impossible to track down which interface is discarding packets? We have a few firewalls which experience a _lot_ of Discards. This in itself is not terrible, but we would really like to know on which interface they are occurring, and ideally why so many, and resolve if possible. Other firewalls are low figures and so just normal network traffic. "netstat -s" is great, but that is system wide and only shows a single discard counter. Is there a command that will show me a summary (like netstat -s) of the individual reasons for Discarded packets etc, even globally? (Buffer full, Queue Drops, Unknown VLAN etc..). Example from our monitoring; â As always, Humbly thank you for your time and great efforts :) Cheers, Andy. [demime 1.01d removed an attachment of type image/png which had a name of OpenBSD Packet Discards.png]
