mgmdRouterInterfaceDrpNoRtrAlrt
DC-MGMD-ROUTER-MIB ·
.1.2.826.42.1.1578918.5.86.1.1.3.1.24
Object
If this object is set to 'true', the router ignores any MGMD packets that do not have the Router Alert option set. Ignoring these packets provides improved security, because it is desirable for routers not to forward forged MGMD packets (legitimate packets have a TTL/Hop Limit of 1), and this is easier to achieve if legitimate packets have the Router Alert option set. However, ignoring these packets breaks backwards compatibility with IGMPv1 implementations, and with early implementations of IGMPv2. For MLD, this object is read-only and is always set to 'true'.
Context
- MIB
- DC-MGMD-ROUTER-MIB
- OID
.1.2.826.42.1.1578918.5.86.1.1.3.1.24- Type
- column
- Access
- readwrite
- Status
- current
- Parent
- mgmdRouterInterfaceEntry
- Table
- mgmdRouterInterfaceTable
- Siblings
- 71
Values & Constraints
Type Values
1 | true |
2 | false |
Related Objects
Sibling Objects
| Object | Type | Syntax | OID |
|---|---|---|---|
| mgmdRouterInterfaceQryMaxRspTme The desired value of Maximum Query Response Time for this
interface.
The Maximum Query Response Time is advertised in MGMDv2 or
v3 queries on this interface.
… | column | tenths of seconds Unsigned32 | .1.2.826.42.1.1578918.5.86.1.1.3.1.10 |
| mgmdRouterInterfaceQrierUpTime The time since mgmdRouterInterfaceQuerier was last
changed. | column | SNMPv2-SMITimeTicks | .1.2.826.42.1.1578918.5.86.1.1.3.1.11 |
| mgmdRouterInterfaceQrierExpTme The amount of time remaining before the Other Querier
Present Timer expires. If the local system is the querier,
the value of this object is zero. | column | SNMPv2-SMITimeTicks | .1.2.826.42.1.1578918.5.86.1.1.3.1.12 |
| mgmdRouterInterfaceWrongVQries The number of general queries received whose IGMP or MLD
version does not match the equivalent
mgmdRouterInterfaceVersion, over the lifetime of the row
entry. Both IGMP and MLD r… | column | SNMPv2-SMICounter32 | .1.2.826.42.1.1578918.5.86.1.1.3.1.13 |
| mgmdRouterInterfaceJoins The number of times a group membership has been added on
this interface; that is, the number of times an entry for
this interface has been added to the Cache Table. This
object g… | column | SNMPv2-SMICounter32 | .1.2.826.42.1.1578918.5.86.1.1.3.1.14 |
| mgmdRouterInterfaceGroupsLimit The maximum number of entries for this interface in the
RouterCache Table. If this object is 0, there is no limit. | column | SNMPv2-SMIUnsigned32 | .1.2.826.42.1.1578918.5.86.1.1.3.1.15 |
| mgmdRouterInterfaceSourcesLimit The maximum number of entries for this interface in the
RouterSrcList Table. If this object is 0, there is no
limit. | column | SNMPv2-SMIUnsigned32 | .1.2.826.42.1.1578918.5.86.1.1.3.1.16 |
| mgmdRouterInterfaceGroups The current number of entries for this interface in the
RouterCache Table.
-- DC modifications {
-- Add text for gauge behavior
This field is an SNMP g… | column | SNMPv2-SMIGauge32 | .1.2.826.42.1.1578918.5.86.1.1.3.1.17 |
| mgmdRouterInterfaceSources The current number of entries for this interface in the
mgmdRouterSrcList Table.
This includes sources which are not visible in
mgmdRouterSrcList because they don't… | column | SNMPv2-SMIGauge32 | .1.2.826.42.1.1578918.5.86.1.1.3.1.18 |
| mgmdRouterInterfaceRobustness The desired value of Robustness on this interface.
-- } End DC modifications
The Robustness Variable allows tuning for the expected
packet loss on a subnet. If a s… | column | Unsigned32 | .1.2.826.42.1.1578918.5.86.1.1.3.1.19 |
| mgmdRouterInterfaceIfIndex The ifIndex value of the interface for which IGMP or MLD
is enabled. The table is indexed by the ifIndex value and
the InetAddressType to allow for interfaces which may be
config… | column | IF-MIBInterfaceIndex | .1.2.826.42.1.1578918.5.86.1.1.3.1.2 |
| mgmdRouterInterfaceLstMemQryIvl The desired value of Last Member Query Interval on this
interface.
The Last Member Query Interval is the Max Response Time
inserted into Group-Specific and Group-an… | column | tenths of seconds Unsigned32 | .1.2.826.42.1.1578918.5.86.1.1.3.1.20 |
| mgmdRouterInterfaceLstMemQryCnt Represents the number of Group-specific and
Group-and-Source-specific queries sent by the router before
it assumes there are no local members. | column | Unsigned32 | .1.2.826.42.1.1578918.5.86.1.1.3.1.21 |
| mgmdRouterInterfaceStartQryIvl This variable represents the interval between General
Queries sent by a Querier on startup. | column | seconds Unsigned32 | .1.2.826.42.1.1578918.5.86.1.1.3.1.22 |
| mgmdRouterInterfaceStartQryCnt Represents the number of Queries sent out on startup
separated by the Startup Query Interval. | column | Unsigned32 | .1.2.826.42.1.1578918.5.86.1.1.3.1.23 |
| mgmdRouterInterfaceDrpIgmpV1 If this object is set to 'true', the router ignores any
IGMPv1 packets. Ignoring these packets provides improved
security, by preventing a forged IGMPv1 packet putting the
group … | column | SNMPv2-TCTruthValue | .1.2.826.42.1.1578918.5.86.1.1.3.1.25 |
| mgmdRouterInterfaceDpIgmpV2MldV1 If this object is set to 'true', the router ignores any
IGMPv2 or MLDv1 packets. Ignoring these packets provides
improved security, by preventing a forged IGMPv2 or MLDv1
packet … | column | SNMPv2-TCTruthValue | .1.2.826.42.1.1578918.5.86.1.1.3.1.26 |
| mgmdRouterInterfaceImmedtLeave If this object is set to 'true', then when the router
receives a request to leave a group or source, it
immediately updates the routing table without running a
timer. If mgmdRout… | column | SNMPv2-TCTruthValue | .1.2.826.42.1.1578918.5.86.1.1.3.1.27 |
| mgmdRouterInterfaceAllowASMList The interface will ignore requests to join any ASM group
address that is not included in the standard access list
with a list index corresponding to the value configured
for this … | column | DC-MASTER-TCStdAccessListListIndexOrZero | .1.2.826.42.1.1578918.5.86.1.1.3.1.28 |
| mgmdRouterInterfaceAllowSSMList For an SSM group, the interface will ignore requests to
join any group/source pair that is not included in the
extended access list with a list index corresponding to
the value co… | column | DC-MASTER-TCExtAccessListListIndexOrZero | .1.2.826.42.1.1578918.5.86.1.1.3.1.29 |
| mgmdRouterInterfaceQuerierType The address type of this interface. This entry along with
the ifIndex value acts as the index to the
mgmdRouterInterface table. A physical interface may be
-- DC modifications {… | column | INET-ADDRESS-MIBInetAddressType | .1.2.826.42.1.1578918.5.86.1.1.3.1.3 |
| mgmdRouterInterfaceQryBefImmdLv If this object and the mgmdRouterInterfaceImmedtLeave
object are both set to 'true', then when the router
receives a request to leave a group or source, it
immediately updates the… | column | SNMPv2-TCTruthValue | .1.2.826.42.1.1578918.5.86.1.1.3.1.30 |
| mgmdRouterInterfaceFailedJoins The number of failed joins received for this interface -
that is, the number of times a group membership could not
be added on this interface.
This counter is only … | column | SNMPv2-SMICounter32 | .1.2.826.42.1.1578918.5.86.1.1.3.1.31 |
| mgmdRouterInterfaceGenQrySent The number of General Queries sent for this interface.
This counter is only returned on a GET operation for this
MIB row if mgmdRouterInterfaceEnableStats is set to… | column | SNMPv2-SMICounter32 | .1.2.826.42.1.1578918.5.86.1.1.3.1.32 |
| mgmdRouterInterfaceSpecQrySent The number of Specific Queries sent for this interface.
This counter is only returned on a GET operation for this
MIB row if mgmdRouterInterfaceEnableStats is set t… | column | SNMPv2-SMICounter32 | .1.2.826.42.1.1578918.5.86.1.1.3.1.33 |
| mgmdRouterInterfaceTotlRcvdMsgs The total number of all IGMP or MLD messages received for
this interface. This includes both valid messages and
invalid messages, including those where the version cannot
be dete… | column | SNMPv2-SMICounter32 | .1.2.826.42.1.1578918.5.86.1.1.3.1.34 |
| mgmdRouterInterfaceIgmpV1 The number of IGMPv1 messages received for this interface.
This includes both valid and invalid messages.
This counter is only returned on a GET operation for this
… | column | SNMPv2-SMICounter32 | .1.2.826.42.1.1578918.5.86.1.1.3.1.35 |
| mgmdRouterInterfaceIgmpV2MldV1 The number of IGMPv2 or MLDv1 messages received for this
interface. This includes both valid and invalid messages.
This counter is only returned on a GET operation… | column | SNMPv2-SMICounter32 | .1.2.826.42.1.1578918.5.86.1.1.3.1.36 |
| mgmdRouterInterfaceIgmpV3MldV2 The number of IGMPv3 or MLDv2 messages received for this
interface. This includes both valid and invalid messages.
This counter is only returned on a GET operation… | column | SNMPv2-SMICounter32 | .1.2.826.42.1.1578918.5.86.1.1.3.1.37 |
| mgmdRouterInterfaceInvalidMsgs The number of Invalid IGMP or MLD messages received for this
interface.
This counter is only returned on a GET operation for this
MIB row if mgmdRouterInterfaceEnab… | column | SNMPv2-SMICounter32 | .1.2.826.42.1.1578918.5.86.1.1.3.1.38 |
| mgmdRouterInterfacePeakGroups The maximum number of multicast groups that have been active
on the interface. This is equal to the peak value of the
mgmdRouterInterfaceGroups gauge.
This field i… | column | SNMPv2-SMIUnsigned32 | .1.2.826.42.1.1578918.5.86.1.1.3.1.39 |
| mgmdRouterInterfaceQuerier The address of the IGMP or MLD Querier on the IP subnet to
-- DC modifications {
-- Text clarification
which this interface is attached. The InetAddressType (fo… | column | OctetString | .1.2.826.42.1.1578918.5.86.1.1.3.1.4 |
| mgmdRouterInterfaceEnableStats This object defines whether DC-IGMP returns
interface-specific statistics on MIB GET operations for
this interface's MIB row.
If this object is modified from 'true'… | column | SNMPv2-TCTruthValue | .1.2.826.42.1.1578918.5.86.1.1.3.1.40 |
| mgmdRouterInterfaceAllowSGList The interface will ignore requests to join any
group/source pair that is not included in the extended
access list with a list index corresponding to the value
configured for this … | column | DC-MASTER-TCExtAccessListListIndexOrZero | .1.2.826.42.1.1578918.5.86.1.1.3.1.41 |
| mgmdRouterInterfaceQrRobustness The value of Robustness in use on this interface.
The Robustness Variable allows tuning for the expected
packet loss on a subnet. If a subnet is expected to be
los… | column | Unsigned32 | .1.2.826.42.1.1578918.5.86.1.1.3.1.42 |
| mgmdRouterInterfaceQrQryIvl The value of Query Interval in use on this interface.
The frequency at which IGMP or MLD General Query packets
are transmitted on this interface.
For… | column | seconds Unsigned32 | .1.2.826.42.1.1578918.5.86.1.1.3.1.43 |
| mgmdRouterInterfaceQrQryMaxRspT The value of Maximum Query Response Time in use on this
interface.
For IGMPv3/MLDv2 or IGMP snooping, this may differ from
the value configured using mgmdRouterInte… | column | tenths of seconds Unsigned32 | .1.2.826.42.1.1578918.5.86.1.1.3.1.44 |
| mgmdRouterInterfaceQrLstQryIvl The value of Last Member Query Interval in use on this
interface.
The Last Member Query Interval is the Max Response Time
inserted into Group-Specific and Group-and… | column | tenths of seconds Unsigned32 | .1.2.826.42.1.1578918.5.86.1.1.3.1.45 |
| mgmdRouterInterfaceStatsUpTime The time since the statistics counters for this interface
were last reset.
This field is reset to zero when
mgmdRouterInterfaceEnableStats is modified to 'true'.
… | column | SNMPv2-SMITimeTicks | .1.2.826.42.1.1578918.5.86.1.1.3.1.46 |
| mgmdRouterInterfaceMrouterCfgd If the entity is performing IGMP snooping, this field
specifies the conditions that need to be satisfied for
this interface to be considered a multicast router
interface.
… | column | MgmdRouterIfIsMrouterCfg | .1.2.826.42.1.1578918.5.86.1.1.3.1.47 |
| mgmdRouterInterfaceMrouterShow This field is 'true' if the interface is a multicast
router interface.
If the entity is not performing IGMP snooping, this field
is not used, and is always set to '… | column | SNMPv2-TCTruthValue | .1.2.826.42.1.1578918.5.86.1.1.3.1.48 |
| mgmdRouterInterfaceProxyUpstrIf If the entity is performing IGMP proxy, set this field to
'true' to indicate that this is an upstream interface.
An interface is an upstream interface if the route … | column | SNMPv2-TCTruthValue | .1.2.826.42.1.1578918.5.86.1.1.3.1.49 |
| mgmdRouterInterfaceQryInterval The desired value of Query Interval on this interface.
The frequency at which IGMP or MLD General Query packets
are transmitted on this interface.
Fo… | column | seconds Unsigned32 | .1.2.826.42.1.1578918.5.86.1.1.3.1.5 |
| mgmdRouterInterfacePassive Whether IGMP/MLD signaling should be suppressed on this
interface.
This is used when the administrator knows that there are
no IGMP/MLD-capable hosts downstream of … | column | SNMPv2-TCTruthValue | .1.2.826.42.1.1578918.5.86.1.1.3.1.50 |
| mgmdRouterInterfaceV2MldV1QSent The number of IGMPv2 or MLDv1 Query messages sent for this
interface. | column | SNMPv2-SMICounter32 | .1.2.826.42.1.1578918.5.86.1.1.3.1.51 |
| mgmdRouterInterfaceV2MldV1QRcvd The number of IGMPv2 or MLDv1 Query messages received for
this interface. This includes both valid and invalid
messages. | column | SNMPv2-SMICounter32 | .1.2.826.42.1.1578918.5.86.1.1.3.1.52 |
| mgmdRouterInterfaceV2MldV1RRcvd The number of IGMPv2 or MLDv1 Report messages received for
this interface. This includes both valid and invalid
messages. | column | SNMPv2-SMICounter32 | .1.2.826.42.1.1578918.5.86.1.1.3.1.53 |
| mgmdRouterInterfaceV2MldV1LRcvd The number of IGMPv2 or MLDv1 Leave messages received for
this interface. This includes both valid and invalid
messages. | column | SNMPv2-SMICounter32 | .1.2.826.42.1.1578918.5.86.1.1.3.1.54 |
| mgmdRouterInterfaceV3MldV2QSent The number of IGMPv3 or MLDv2 Query messages sent for this
interface. | column | SNMPv2-SMICounter32 | .1.2.826.42.1.1578918.5.86.1.1.3.1.55 |
| mgmdRouterInterfaceV3MldV2QRcvd The number of IGMPv3 or MLDv2 Query messages received for
this interface. This includes both valid and invalid
messages. | column | SNMPv2-SMICounter32 | .1.2.826.42.1.1578918.5.86.1.1.3.1.56 |
| mgmdRouterInterfaceV3MldV2RRcvd The number of IGMPv3 or MLDv2 Report messages received for
this interface. This includes both valid and invalid
messages. | column | SNMPv2-SMICounter32 | .1.2.826.42.1.1578918.5.86.1.1.3.1.57 |
| mgmdRouterInterfaceInvChecksum The number of messages received for this interface that
were not processed because they had a bad checksum. | column | SNMPv2-SMICounter32 | .1.2.826.42.1.1578918.5.86.1.1.3.1.58 |
| mgmdRouterInterfaceInvalidLen The number of Invalid IGMP or MLD messages received for
this interface with a bad length. | column | SNMPv2-SMICounter32 | .1.2.826.42.1.1578918.5.86.1.1.3.1.59 |
| mgmdRouterInterfaceStatus The status of this MIB row.
The activation of a row enables the router side of IGMP or
MLD on the interface. The destruction of a row disables the
router side of I… | column | SNMPv2-TCRowStatus | .1.2.826.42.1.1578918.5.86.1.1.3.1.6 |
| mgmdRouterInterfaceInvLocalIP The number of Invalid IGMP or MLD messages received for
this interface with an invalid local IP address. | column | SNMPv2-SMICounter32 | .1.2.826.42.1.1578918.5.86.1.1.3.1.60 |
| mgmdRouterInterfaceInvSubnet The number of Invalid IGMP or MLD messages received for
this interface with an invalid source subnet. | column | SNMPv2-SMICounter32 | .1.2.826.42.1.1578918.5.86.1.1.3.1.61 |
| mgmdRouterInterfaceInvNonQuerier The number of Invalid IGMP or MLD query messages received
for this interface from a non-querier. | column | SNMPv2-SMICounter32 | .1.2.826.42.1.1578918.5.86.1.1.3.1.62 |
| mgmdRouterInterfaceWrongVRep The number of Report messages received whose IGMP or MLD
version does not match the equivalent
mgmdRouterInterfaceVersion, over the lifetime of the row
entry. Both IGMP and MLD r… | column | SNMPv2-SMICounter32 | .1.2.826.42.1.1578918.5.86.1.1.3.1.63 |
| mgmdRouterInterfaceInvMsgType The number of Invalid IGMP or MLD messages received for
this interface that were rejected because they had an
invalid message type. | column | SNMPv2-SMICounter32 | .1.2.826.42.1.1578918.5.86.1.1.3.1.64 |
| mgmdRouterInterfaceInvV2Reports The number of Invalid IGMPv2 or MLDv1 Report messages
received for this interface. | column | SNMPv2-SMICounter32 | .1.2.826.42.1.1578918.5.86.1.1.3.1.65 |
| mgmdRouterInterfaceInvV3Reports The number of Invalid IGMPv3 or MLDv2 Report messages
received for this interface. | column | SNMPv2-SMICounter32 | .1.2.826.42.1.1578918.5.86.1.1.3.1.66 |
| mgmdRouterInterfaceInvLeaves The number of Invalid IGMP or MLD Leave messages received
for this interface. | column | SNMPv2-SMICounter32 | .1.2.826.42.1.1578918.5.86.1.1.3.1.67 |
| mgmdRouterInterfaceBadRtrAlert The number of received messages on this interface that
were not processed because they were missing the router
alert option. | column | SNMPv2-SMICounter32 | .1.2.826.42.1.1578918.5.86.1.1.3.1.68 |
| mgmdRouterInterfaceLstMQrCntCfg The number of Group-specific and Group-and-Source-specific
queries sent by the router before it assumes there are no
local members.
If this field is set to 0, then … | column | Unsigned32 | .1.2.826.42.1.1578918.5.86.1.1.3.1.69 |
| mgmdRouterInterfaceAdminStatus The desired administrative state of the interface. | column | DC-MASTER-TCAdminStatus | .1.2.826.42.1.1578918.5.86.1.1.3.1.7 |
| mgmdRouterInterfaceStQryIvlCfg The interval between General Queries sent by a Querier on
startup.
If this field is set to 0, then the value of
mgmdRouterInterfaceQryInterval / 4 is used for this
… | column | seconds Unsigned32 | .1.2.826.42.1.1578918.5.86.1.1.3.1.70 |
| mgmdRouterInterfaceStQryCntCfg The number of Queries sent out on startup separated by the
Startup Query Interval.
If this field is set to 0, then the value of
mgmdRouterInterfaceRobustness is use… | column | Unsigned32 | .1.2.826.42.1.1578918.5.86.1.1.3.1.71 |
| mgmdRouterInterfaceQueryExpTime The time (in milliseconds) until the next Query message is
sent on this interface. | column | SNMPv2-SMIUnsigned32 | .1.2.826.42.1.1578918.5.86.1.1.3.1.72 |
| mgmdRouterInterfaceExplTracking If this object and the mgmdRouterInterfaceImmedtLeave
object are set to 'true' and the
mgmdRouterInterfaceQryBefImmdLv object is set to 'false',
then the router tracks the set of … | column | SNMPv2-TCTruthValue | .1.2.826.42.1.1578918.5.86.1.1.3.1.73 |
| mgmdRouterInterfaceOperStatus The current operational state of the interface. | column | DC-MASTER-TCNpgOperStatus | .1.2.826.42.1.1578918.5.86.1.1.3.1.8 |
| mgmdRouterInterfaceVersion The version of MGMD which is running on this interface.
Value 1 applies to IGMPv1 routers only. Value 2 applies
to IGMPv2 and MLDv1 routers, and value 3 applies to IGMPv3
and MLD… | column | Unsigned32 | .1.2.826.42.1.1578918.5.86.1.1.3.1.9 |