All MIBs › IP-MIB › icmpInDestUnreachs
icmpInDestUnreachs
Module: IP-MIB
OID (symbolic): IP-MIB::icmpInDestUnreachs
OID (numeric): 1.3.6.1.2.1.5.3
Node type: OBJECT-TYPE
Type: Counter32
Access: read-only
Description:
The number of ICMP Destination Unreachable messages received.
This object has been deprecated, as a new IP version-neutral table has been added. It is loosely replaced by a column in the icmpMsgStatsTable.
What is icmpInDestUnreachs?
This counter tracks the total number of ICMP Destination Unreachable error messages received by the system, indicating network routes or hosts that are not reachable. This object is deprecated in favor of version-neutral tables but still appears in legacy systems. Network operators review this counter to diagnose routing problems, misconfigured gateways, or unreachable destinations in the network.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.2.1.5.3 snmpwalk -v2c -c public <target> IP-MIB::icmpInDestUnreachs
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.2.1.5.3.1 snmpget -v2c -c public <target> IP-MIB::icmpInDestUnreachs.1