All MIBs › CIENA-CES-DHCPV6-CLIENT-MIB › cienaCesDhcpv6LdraIPv6FragBadExtHdrPktDrop
cienaCesDhcpv6LdraIPv6FragBadExtHdrPktDrop
Module: CIENA-CES-DHCPV6-CLIENT-MIB
OID (symbolic): CIENA-CES-DHCPV6-CLIENT-MIB::cienaCesDhcpv6LdraIPv6FragBadExtHdrPktDrop
OID (numeric): 1.3.6.1.4.1.1271.2.1.30.1.2.4.1.12
Node type: OBJECT-TYPE
Type: Counter32
Access: read-only
Description: This object specifies the number of DHCPv6 packets dropped due to IPv6 packet extension headers that could not be processed.
What is cienaCesDhcpv6LdraIPv6FragBadExtHdrPktDrop?
Counts DHCPv6 packets dropped on this VLAN because their IPv6 extension headers (such as fragmentation headers) could not be processed by LDRA. This is a strictly IPv6-specific failure mode with no IPv4 equivalent -- it flags packets whose extension-header chain is malformed or unusually structured, which LDRA can't parse well enough to insert its relay options into. A client or middlebox that fragments DHCPv6 traffic unusually, or corrupts the extension header chain, would trigger this counter rather than any of the trust-mode or validation counters.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.1271.2.1.30.1.2.4.1.12 snmpwalk -v2c -c public <target> CIENA-CES-DHCPV6-CLIENT-MIB::cienaCesDhcpv6LdraIPv6FragBadExtHdrPktDrop
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.1271.2.1.30.1.2.4.1.12.1 snmpget -v2c -c public <target> CIENA-CES-DHCPV6-CLIENT-MIB::cienaCesDhcpv6LdraIPv6FragBadExtHdrPktDrop.1
SNMPv3 example:
snmpget -v3 -l authPriv -u snmpv3-user -a SHA -A "AuthPassword1" -x AES -X "PrivPassword1" <target> cienaCesDhcpv6LdraIPv6FragBadExtHdrPktDrop.1
Start monitoring Ciena CES (Carrier Ethernet Switch) platforms with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the CIENA-CES-DHCPV6-CLIENT-MIB::cienaCesDhcpv6LdraIPv6FragBadExtHdrPktDrop OID value, configure state conditions and alerts, and monitor any Ciena CES (Carrier Ethernet Switch) platforms 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 |
| 1.3.6.1.4.1.1271 | ciena | CIENA-SMI |
| 1.3.6.1.4.1.1271.2 | cienaCes | CIENA-SMI |
| 1.3.6.1.4.1.1271.2.1 | cienaCesConfig | CIENA-SMI |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.4.1.1271.2.1.30 | cienaCesDhcpv6ClientMIB | CIENA-CES-DHCPV6-CLIENT-MIB |
| 1.3.6.1.4.1.1271.2.1.30.1 | cienaCesDhcpv6ClientMIBObjects | CIENA-CES-DHCPV6-CLIENT-MIB |
| 1.3.6.1.4.1.1271.2.1.30.1.2 | cienaCesDhcpv6RelayAgent | CIENA-CES-DHCPV6-CLIENT-MIB |
| 1.3.6.1.4.1.1271.2.1.30.1.2.4 | cienaCesDhcpv6LdraStatsTable | CIENA-CES-DHCPV6-CLIENT-MIB |
| 1.3.6.1.4.1.1271.2.1.30.1.2.4.1 | cienaCesDhcpv6LdraStatsEntry | CIENA-CES-DHCPV6-CLIENT-MIB |
| 1.3.6.1.4.1.1271.2.1.30.1.2.4.1.12 | cienaCesDhcpv6LdraIPv6FragBadExtHdrPktDrop | CIENA-CES-DHCPV6-CLIENT-MIB |