All MIBs › ACC-IPSEC › accIpsecStatsIllegalFragments
accIpsecStatsIllegalFragments
Module: ACC-IPSEC
OID (symbolic): ACC-IPSEC::accIpsecStatsIllegalFragments
OID (numeric): 1.3.6.1.4.1.5.1.1.81.2.20
Node type: OBJECT-TYPE
Type: Counter
Access: read-only
Description: Number of packets dropped because a transport mode packet contained a fragment
What is accIpsecStatsIllegalFragments?
ACC-IPSEC::accIpsecStatsIllegalFragments counts transport-mode encrypted packets that were discarded because they contained IP fragments, a configuration violation that indicates improper traffic selection or a policy mismatch with the peer. Transport mode is intended for host-to-host communication without fragmentation, so fragments are considered invalid. For example, if you see 12 of these errors, it might mean your MTU is too small and a legacy application is fragmenting packets, and you should either increase the MTU or switch to tunnel mode.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.5.1.1.81.2.20 snmpwalk -v2c -c public <target> ACC-IPSEC::accIpsecStatsIllegalFragments
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.5.1.1.81.2.20.1 snmpget -v2c -c public <target> ACC-IPSEC::accIpsecStatsIllegalFragments.1
Start monitoring ACC/Ericsson WAN access routers (legacy) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the ACC-IPSEC::accIpsecStatsIllegalFragments OID value, configure state conditions and alerts, and monitor any ACC/Ericsson WAN access routers (legacy) from a single console.
OID Breakdown
Upper-level ancestors (9 from the standard OID tree / other modules)
| Numeric OID | Name | Module |
|---|---|---|
| 1 | iso | LANART-AGENT |
| 1.3 | org | AirPair-MIB |
| 1.3.6 | dod | AirPair-MIB |
| 1.3.6.1 | internet | AirPair-MIB |
| 1.3.6.1.4 | private | AirPair-MIB |
| 1.3.6.1.4.1 | enterprises | AirPair-MIB |
| 1.3.6.1.4.1.5 | acc | ACC-MIB |
| 1.3.6.1.4.1.5.1 | accSBAR | ACC-MIB |
| 1.3.6.1.4.1.5.1.1 | accBRG | ACC-MIB |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.4.1.5.1.1.81 | accIpsec | ACC-IPSEC |
| 1.3.6.1.4.1.5.1.1.81.2 | accIpsecStats | ACC-IPSEC |
| 1.3.6.1.4.1.5.1.1.81.2.20 | accIpsecStatsIllegalFragments | ACC-IPSEC |