From Observium

We use the ipSystemStats table within IP-MIB to track per-address family statistics for the IP stack.

This is instead of the older OIDs which don't provide per-address family statistics.

IP-MIB::ipSystemStatsInReceives.ipv4 = Counter32: 1077699026
IP-MIB::ipSystemStatsInReceives.ipv6 = Counter32: 5329688
IP-MIB::ipSystemStatsHCInReceives.ipv4 = Counter64: 1077699026
IP-MIB::ipSystemStatsHCInReceives.ipv6 = Counter64: 5329688
IP-MIB::ipSystemStatsHCInOctets.ipv4 = Counter64: 0
IP-MIB::ipSystemStatsHCInOctets.ipv6 = Counter64: 0
IP-MIB::ipSystemStatsInHdrErrors.ipv4 = Counter32: 199
IP-MIB::ipSystemStatsInHdrErrors.ipv6 = Counter32: 0
IP-MIB::ipSystemStatsInAddrErrors.ipv4 = Counter32: 0
IP-MIB::ipSystemStatsInAddrErrors.ipv6 = Counter32: 0
IP-MIB::ipSystemStatsInUnknownProtos.ipv4 = Counter32: 1
IP-MIB::ipSystemStatsInUnknownProtos.ipv6 = Counter32: 0
IP-MIB::ipSystemStatsInForwDatagrams.ipv4 = Counter32: 4444354
IP-MIB::ipSystemStatsInForwDatagrams.ipv6 = Counter32: 0
IP-MIB::ipSystemStatsHCInForwDatagrams.ipv4 = Counter64: 4444354
IP-MIB::ipSystemStatsHCInForwDatagrams.ipv6 = Counter64: 0
IP-MIB::ipSystemStatsReasmReqds.ipv4 = Counter32: 0
IP-MIB::ipSystemStatsReasmReqds.ipv6 = Counter32: 0
IP-MIB::ipSystemStatsReasmOKs.ipv4 = Counter32: 579
IP-MIB::ipSystemStatsReasmOKs.ipv6 = Counter32: 202
IP-MIB::ipSystemStatsReasmFails.ipv4 = Counter32: 2
IP-MIB::ipSystemStatsReasmFails.ipv6 = Counter32: 0
IP-MIB::ipSystemStatsInDiscards.ipv4 = Counter32: 0
IP-MIB::ipSystemStatsInDiscards.ipv6 = Counter32: 0
IP-MIB::ipSystemStatsInDelivers.ipv4 = Counter32: 1068639726
IP-MIB::ipSystemStatsInDelivers.ipv6 = Counter32: 5329450
IP-MIB::ipSystemStatsHCInDelivers.ipv4 = Counter64: 1068639726
IP-MIB::ipSystemStatsHCInDelivers.ipv6 = Counter64: 5329450
IP-MIB::ipSystemStatsOutRequests.ipv4 = Counter32: 920876809
IP-MIB::ipSystemStatsOutRequests.ipv6 = Counter32: 5256668
IP-MIB::ipSystemStatsHCOutRequests.ipv4 = Counter64: 920876809
IP-MIB::ipSystemStatsHCOutRequests.ipv6 = Counter64: 5256668
IP-MIB::ipSystemStatsOutNoRoutes.ipv4 = Counter32: 1
IP-MIB::ipSystemStatsOutNoRoutes.ipv6 = Counter32: 0
IP-MIB::ipSystemStatsHCOutForwDatagrams.ipv4 = Counter64: 0
IP-MIB::ipSystemStatsHCOutForwDatagrams.ipv6 = Counter64: 0
IP-MIB::ipSystemStatsOutDiscards.ipv4 = Counter32: 205
IP-MIB::ipSystemStatsOutDiscards.ipv6 = Counter32: 0
IP-MIB::ipSystemStatsOutFragFails.ipv4 = Counter32: 0
IP-MIB::ipSystemStatsOutFragFails.ipv6 = Counter32: 0
IP-MIB::ipSystemStatsOutFragCreates.ipv4 = Counter32: 0
IP-MIB::ipSystemStatsOutFragCreates.ipv6 = Counter32: 68
IP-MIB::ipSystemStatsDiscontinuityTime.ipv4 = Timeticks: (0) 0:00:00.00
IP-MIB::ipSystemStatsDiscontinuityTime.ipv6 = Timeticks: (0) 0:00:00.00
IP-MIB::ipSystemStatsRefreshRate.ipv4 = Gauge32: 30000 milli-seconds
IP-MIB::ipSystemStatsRefreshRate.ipv6 = Gauge32: 30000 milli-seconds