Subtree name Standard [(identifier) attribute] Support
Implementation spec-
ifications
IpDefaultTTL [(2) RW]
The default value set for the IP header TTL if
no TTL value was given by the transport lay-
er protocol.
Support-
ed
64
IpInReceives [(3) RO]
The number of all IP datagrams that reached
the interface, including errors.
Support-
ed
According to the stand-
ard.
IpInHdrErrors [(4) RO]
The number of received datagrams that were
discarded because of an IP header error
(checksum error
, version number error, for-
mat error, TTL error, IP option error, etc.).
Support-
ed
According to the stand-
ard.
IpInAddrErrors [(5) RO]
The number of packets that were discarded
because the destination address in the IP
header was not valid.
Support-
ed
According to the stand-
ard.
ipForwDatagrams [(6) RO]
The number of IP datagrams that were trans-
ferred to their final destination. If this node
does not operate as an IP gateway
, this is the
number of datagrams that were successfully
transferred through source routing.
Support-
ed
According to the stand-
ard.
ipInUnknownProtos [(7) RO]
The number of IP datagrams that were re-
ceived but discarded because they were of
an unsupported or unrecognized protocol.
Support-
ed
According to the stand-
ard.
ipInDiscards [(8) RO]
The number of IP datagrams that could have
continued to be processed without any prob-
lems, but were discarded (for example, be-
cause of insuf
ficient buffer space).
Support-
ed
According to the stand-
ard.
ipInDelivers [(9) RO]
The number of datagrams delivered to an IP
user protocol (any higher level protocol, in-
cluding ICMP).
Support-
ed
According to the stand-
ard.
ipOutRequests [(10) RO]
The number of times a send request was
made for an IP datagram by a local IP user
protocol (any higher level protocol, including
ICMP). This counter does not include ipForw-
Datagrams.
Support-
ed
According to the stand-
ard.
ipOutDiscards [(11) RO]
The number of IP datagrams that could have
been sent without any problems, but were
discarded (for example, because of insuf
fi-
cient buffer space).
Support-
ed
According to the stand-
ard.
14 SNMP Agent
14-9
NJ/NX-series CPU Unit Built-in EtherNet/IP Port User’s Manual (W506)
14-1 SNMP Agent
14
14-1-4 MIB Specifications
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