USR-IP-ROUTING-MIB

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Organization: CommWorks Corporation, a 3Com Company

Last Updated: 2002-05-05

Category: CommWorks/3Com Access Equipment

Description: Covers IP routing tables, static route entries, and routing policy on CommWorks/3Com access devices.

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What Is USR-IP-ROUTING-MIB?

USR-IP-ROUTING-MIB is a CommWorks Corporation (a 3Com Company, U.S. Robotics heritage) proprietary MIB reporting IP routing-process configuration and statistics. Its objects cover router ID, admin status, static-route protocol status, AS number, max admin/actual route-table size, max next-hop entries, route-entry count, general and RIP statistics, RIP admin status/flags, and an interface-block table (address, ifIndex, handle, netmask, ones/zeros broadcast, reassembly max size, type, neighbor address, admin status, statistics). As a configuration/performance MIB it lets an administrator confirm routing-table capacity and per-interface IP routing configuration on a CommWorks (3Com/U.S. Robotics) remote-access platform. It is deployed on CommWorks (3Com/U.S. Robotics) remote-access platforms (IP routing). Engineers can download the USR-IP-ROUTING-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in USR-IP-ROUTING-MIB. Use the built-in SNMP Monitoring Browser to explore available variables, view their current values and descriptions, and select the objects you want to monitor. You can then create SNMP monitors, configure thresholds, and receive alerts when monitored values change.

Supported Devices

CommWorks (3Com/U.S. Robotics) remote-access platforms (IP routing)

Monitoring Examples

An administrator checks usrIpRtEntryCount against usrIpRtabMax to confirm routing-table capacity headroom on a CommWorks (3Com) remote-access platform.

What Can Be Monitored

IP routing-table capacity and per-interface configuration

Imported Objects

From SNMPv2-SMI

Counter32
Integer32
IpAddress
MODULE-IDENTITY
OBJECT-TYPE

From SNMPv2-TC

DisplayString

From USR-DEFINITIONS-MIB

UsrConfigStatus
UsrNetLogicalId
common	OBJECT-IDENTITY

How to Use in IPNetwork Monitor

Example using usrIpRtEntryCount OID:

Select a CommWorks (3Com/U.S. Robotics) remote-access platforms, IP routing (route-table capacity/RIP statistics status) as the target host to create a monitor — the SNMP service should be up and running on it. Click New Monitor, then check SNMP Custom on the Favorites tab, click Next, and confirm the host. On the next page, click Select... to open the built-in SNMP MIB Browser and type usrIpRtEntryCount into the Find box to locate it in the OID tree, then select it and click OK. This keeps the number of route entries. On the monitor's Main parameters page you can set the target's SNMP port (default 161), credentials, polling interval, and other settings — see the SNMP Monitor help for details. On the State conditions and Alerting tabs, configure when the monitor should change state and trigger an alert; since this is a Counter32-type OID, Value bounds is the most useful condition here — trigger an alert if the counter increases sharply between polls relative to its normal baseline, since an unexpected spike often reflects a real change in traffic or activity. Click Finish to create the monitor; you can adjust any parameter later.

OIDs

OID symbolic	OID numeric	Type	Access	Description
IP rip2IfConfAddress	1.3.6.1.4.1.429.4.19.19.1.1	IpAddress	read-only	the network interface address.
OCT rip2IfConfAuthKey	1.3.6.1.4.1.429.4.19.19.1.5	OCTET STRING	read-write	the authentication key is defined here.
INT rip2IfConfAuthType	1.3.6.1.4.1.429.4.19.19.1.4	INTEGER	read-write	this variable specifies the authentication type. md5 is not supported in this version yet.
I32 rip2IfConfDefaultMetric	1.3.6.1.4.1.429.4.19.19.1.8	Integer32	read-write	this variable defines the default metric of this network interface.
I32 rip2IfConfDomain	1.3.6.1.4.1.429.4.19.19.1.3	Integer32	not-accessible	this thing is obsolete.
I32 rip2IfConfIndex	1.3.6.1.4.1.429.4.19.19.1.2	Integer32	read-only	the network id.
INT rip2IfConfReceive	1.3.6.1.4.1.429.4.19.19.1.7	INTEGER	read-write	this variable defines the receive policy.
INT rip2IfConfSend	1.3.6.1.4.1.429.4.19.19.1.6	INTEGER	read-write	this variable defines the send policy.
I32 rip2IfConfSrcAddress	1.3.6.1.4.1.429.4.19.19.1.10	Integer32	read-only
INT rip2IfConfStatus	1.3.6.1.4.1.429.4.19.19.1.9	INTEGER	read-write
INT usrIpAdminStatus	1.3.6.1.4.1.429.4.19.2	INTEGER	read-write	this variable is used to enable or disable the ip routing instance.
I32 usrIpASNumber	1.3.6.1.4.1.429.4.19.4	Integer32	read-write	this is the autonomous system number used by egp, which can only be modified when usrIpAdminStatus is set to disabled.
I32 usrIpDelRouteAll	1.3.6.1.4.1.429.4.19.20	Integer32	read-write	This object is used to clear the whole routing table - setting this object with ANY value will do this.
INT usrIpGenStat	1.3.6.1.4.1.429.4.19.9	INTEGER	read-write	this variable denotes the existence of the ip routing instance, which can also be used to delete the routing instance.
IP usrIpIfbEntAddr	1.3.6.1.4.1.429.4.19.13.1.1	IpAddress	read-only	ip network interface address, i.e. host address
INT usrIpIfbEntAdminStatus	1.3.6.1.4.1.429.4.19.13.1.10	INTEGER	read-write	this variable is used to enable or disable this interface block
I32 usrIpIfbEntIfHandle	1.3.6.1.4.1.429.4.19.13.1.3	Integer32	read-only	don't know yet
USR usrIpIfbEntIfIndex	1.3.6.1.4.1.429.4.19.13.1.2	UsrNetLogicalId	read-only	the logical identifier of the ip network.
IP usrIpIfbEntNbrAddr	1.3.6.1.4.1.429.4.19.13.1.9	IpAddress	read-write	this may be needed for point to point connection.
IP usrIpIfbEntNetMask	1.3.6.1.4.1.429.4.19.13.1.4	IpAddress	read-only	the subnet mask associated w/ the ip address of this entry.
I32 usrIpIfbEntOnesBc	1.3.6.1.4.1.429.4.19.13.1.5	Integer32	read-only	the value of the least-significant bit in the ip broadcast address used for sending datagrams on the (logical) interface associated w/ the ip address of this entry.
INT usrIpIfbEntPortDown	1.3.6.1.4.1.429.4.19.13.1.12	INTEGER	read-write	this variable is used to indicate the state of the hardware.
I32 usrIpIfbEntReasmMaxSize	1.3.6.1.4.1.429.4.19.13.1.7	Integer32	read-only	the size of the largest ip datagram which this entity can re-assemble from incoming ip fragmented datagrams received on this interface. it is usually equivalent to the mtu of the interface.
usrIpIfbEntry	1.3.6.1.4.1.429.4.19.13.1		not-accessible	an entry for one ip interface block.
INT usrIpIfbEntStat	1.3.6.1.4.1.429.4.19.13.1.11	INTEGER	read-write	this variable is used to create or delete an interface block.
INT usrIpIfbEntType	1.3.6.1.4.1.429.4.19.13.1.8	INTEGER	read-only	this denotes the ip network (logical) type.
I32 usrIpIfbEntZerosBc	1.3.6.1.4.1.429.4.19.13.1.6	Integer32	not-accessible	the value of the least-significant bit in the ip broadcast address used for sending datagrams on the (logical) interface associated w/ the ip address of this entry.
usrIpIfbTable	1.3.6.1.4.1.429.4.19.13		not-accessible	rci uses interface block to describe the system's network interface which is similar to pilgrim portal.
I32 usrIpNHEntryMax	1.3.6.1.4.1.429.4.19.7	Integer32	read-write	this defines the maximum next hop entries, which can only be modified when usrIpAdminStatus is set to disabled. the default is 512
usrIpRip2IfConfEntry	1.3.6.1.4.1.429.4.19.19.1		not-accessible	an entry of ripv2 interface configuration table.
usrIpRip2IfConfTable	1.3.6.1.4.1.429.4.19.19		not-accessible	table for ripv2 specific interface configuration information
I32 usrIpRip2IfStatRcvBadPackets	1.3.6.1.4.1.429.4.19.18.1.17	Integer32	read-only	ripv2 received bad packet counter.
I32 usrIpRip2IfStatRcvBadRoutes	1.3.6.1.4.1.429.4.19.18.1.18	Integer32	read-only	ripv2 received bad route counter.
I32 usrIpRip2IfStatSendUpdates	1.3.6.1.4.1.429.4.19.18.1.19	Integer32	read-only	ripv2 sent update packet counter.
INT usrIpRipAdminStatus	1.3.6.1.4.1.429.4.19.11	INTEGER	read-write	this variable is used to create or delete the ip rip instance.
I32 usrIpRipFlags	1.3.6.1.4.1.429.4.19.12	Integer32	read-write	Several Flags are supported by this mib object, only RIP_FLAG_RFC1058_METRICS, RIP_FLAG_SEND_REQUEST are accessible. The only allowable values for setting are as follows:- 24 (0x18) - SEND_REQUEST & METRICS 8 - METRICS 16 (0x10) - SEND_REQUEST 0 - NONE Note:- when setting these values a GET will not necessarily return the value SET: it will return the SET value plus the bitmask(s) for inaccessible flags. The default flags are 0x1A (decimal 26) reflecting, RIP_FLAG_JITTER_UPDATE := 0x00000002 (default) RIP_FLAG_RFC1058_METRICS := 0x00000008 (default) RIP_FLAG_SEND_REQUEST := 0x00000010 (default)
INT usrIpRipGenAdminStat	1.3.6.1.4.1.429.4.19.14	INTEGER	read-write	this variable is used to disable or enable the ip rip instance at the rip instance level.
I32 usrIpRipGenIntfCnt	1.3.6.1.4.1.429.4.19.15	Integer32	read-only	this variable shows the number of the ip rip interfaces.
INT usrIpRipGenJitter	1.3.6.1.4.1.429.4.19.17	INTEGER	read-write	this variable is used to enable or disable the rip packet jitter feature.
I32 usrIpRipGenNbrCnt	1.3.6.1.4.1.429.4.19.16	Integer32	read-only	this variable shows the number of the rip neighbours.
INT usrIpRipGenStat	1.3.6.1.4.1.429.4.19.10	INTEGER	read-write	this mib variable is used to enable or disable the ip rip instance at the ip routing instance level. it is a no op if ip rip instance is not yet created. the rip instance, i.e. usrIpRipAdminStatus, may still remain disabled, if it is either not created or it was disabled at ip rip instance level. to fully enable the rip instance, one has to make sure that ip rip instance is already created and enabled on both levels.
INT usrIpRipIfAcceptDefault	1.3.6.1.4.1.429.4.19.18.1.8	INTEGER	read-write	this variable is to enable accepting the default route.
INT usrIpRipIfAdminStat	1.3.6.1.4.1.429.4.19.18.1.5	INTEGER	read-write	this variable shows whether the rip is enabled for this interface.
I32 usrIpRipIfDfltRouteMetric	1.3.6.1.4.1.429.4.19.18.1.14	Integer32	read-write	this variable specifies the metric of the default route.
IP usrIpRipIfEntAddr	1.3.6.1.4.1.429.4.19.18.1.1	IpAddress	read-only	the interface ip address.
I32 usrIpRipIfEntAddrLessIf	1.3.6.1.4.1.429.4.19.18.1.2	Integer32	read-only	this column is used when the interface ip address is not specified. in general, it is equal to network id.
usrIpRipIfEntry	1.3.6.1.4.1.429.4.19.18.1		not-accessible	an entry of rip interface block.
INT usrIpRipIfFlash	1.3.6.1.4.1.429.4.19.18.1.13	INTEGER	read-write	this variable is to enable sending flash update.
I32 usrIpRipIfMetric	1.3.6.1.4.1.429.4.19.18.1.6	Integer32	read-write	this variable is to define the metric for this interface.
INT usrIpRipIfPoison	1.3.6.1.4.1.429.4.19.18.1.12	INTEGER	read-write	this variable is to enable poison reverse.
INT usrIpRipIfPortDown	1.3.6.1.4.1.429.4.19.18.1.15	INTEGER	read-only	this variable denotes the status of the physical port.
INT usrIpRipIfSendDefault	1.3.6.1.4.1.429.4.19.18.1.7	INTEGER	read-write	this variable is to enable advertising the default route.
INT usrIpRipIfSilent	1.3.6.1.4.1.429.4.19.18.1.10	INTEGER	read-write	this variable is to enable listen-only feature for this interface.
INT usrIpRipIfSplitHorizon	1.3.6.1.4.1.429.4.19.18.1.11	INTEGER	read-write	this variable is to enable split horizon.
INT usrIpRipIfStat	1.3.6.1.4.1.429.4.19.18.1.16	INTEGER	read-write	this variable is to delete the rip interface.
INT usrIpRipIfSubnetsOnly	1.3.6.1.4.1.429.4.19.18.1.9	INTEGER	read-write	this variable is to enable this interface to advertise only subnet routes only.
usrIpRipIfTable	1.3.6.1.4.1.429.4.19.18		not-accessible	rci uses interface block to describe the system's network interface which is similar to pilgrim portal.
INT usrIpRipIfType	1.3.6.1.4.1.429.4.19.18.1.4	INTEGER	read-write	this variable shows the interface type, i.e. broadcast, non-broadcast, point-to-point and undefined.
INT usrIpRipIfVersion	1.3.6.1.4.1.429.4.19.18.1.3	INTEGER	read-write	this variable tells what version of rip this interface is running.
I32 usrIpRipIncorrectPacketCount	1.3.6.1.4.1.429.4.19.28	Integer32	read-only	Number of incorrect IP RIP packets received.
I32 usrIpRipRXPacketCount	1.3.6.1.4.1.429.4.19.26	Integer32	read-only	Number of IP RIP packets received.
I32 usrIpRipTXPacketCount	1.3.6.1.4.1.429.4.19.27	Integer32	read-only	Number of IP RIP packets transmitted.
IP usrIpRouterId	1.3.6.1.4.1.429.4.19.1	IpAddress	read-write	the router id is usually the ip address of one of the router's lan interface ip address. this variable can only be set when usrIpAdminStatus is set to disabled.
usrIpRouting	1.3.6.1.4.1.429.4.19			The commWorks enterprise defined MIB objects for IP routing process.
I32 usrIpRtabMax	1.3.6.1.4.1.429.4.19.6	Integer32	read-only	this displays the maximum routing table size, this value can no longer be modified. The max size of the routing table is determined at compilation time, based on the DFLT_RTH_CNT. DFLT_RTH_CNT is currently set to 3880.
I32 usrIpRtabMaxAdmin	1.3.6.1.4.1.429.4.19.5	Integer32	read-write	the max admin route table entries for next set. this is put in by rci for lightstream atm. it is not used by lanlinker or netserver.
usrIpRTE	1.3.6.1.4.1.429.4.19.24		not-accessible	This entity's IP Routing table.
I32 usrIpRTEAge	1.3.6.1.4.1.429.4.19.24.1.5	Integer32	read-write	The number of seconds since this route was last updated or otherwise determined to be correct. Note that no semantics of `too old' can be implied except through knowledge of the routing protocol by which the route was learned.
IP usrIpRTEDest	1.3.6.1.4.1.429.4.19.24.1.1	IpAddress	read-write	The destination IP address of this route. An entry with a value of 0.0.0.0 is considered a default route. Multiple routes to a single destination can appear in the table, but access to such multiple entries is dependent on the table- access mechanisms defined by the network management protocol in use.
usrIpRTEEntry	1.3.6.1.4.1.429.4.19.24.1		not-accessible	A route to a particular destination. These routes are learned or written from the forwarder and so these objects are not accessible for SET via CLI or SNMP. The only PDU type implemented is GETNEXT.
I32 usrIpRTEFwdFlags	1.3.6.1.4.1.429.4.19.24.1.6	Integer32	read-write	Forward flags are hints to the forwarding engine as to what to do with the incoming packet.
I32 usrIpRTEIfIndex	1.3.6.1.4.1.429.4.19.24.1.10	Integer32	read-write	The index value which uniquely identifies the local interface through which the next hop of this route should be reached. The interface identified by a particular value of this index is the same interface as identified by the same value of ifIndex.
IP usrIpRTEMask	1.3.6.1.4.1.429.4.19.24.1.2	IpAddress	read-write	Indicate the mask to be logical-ANDed with the destination address before being compared to the value in the ipRTEDest field. For those systems that do not support arbitrary subnet masks, an agent constructs the value of the ipRTEMask by determining whether the value of the correspondent ipRTEDest field belong to a class-A, B, or C network, and then using one of: mask network 255.0.0.0 class-A 255.255.0.0 class-B 255.255.255.0 class-C If the value of the ipRTEDest is 0.0.0.0 (a default route), then the mask value is also 0.0.0.0. It should be noted that all IP routing subsystems implicitly use this mechanism.
I32 usrIpRTEMetric	1.3.6.1.4.1.429.4.19.24.1.4	Integer32	read-write	The primary routing metric for this route. The semantics of this metric are determined by the routing-protocol specified in the route's ipRTEProto value. If this metric is not used, its value should be set to -1.
IP usrIpRTENextHop	1.3.6.1.4.1.429.4.19.24.1.9	IpAddress	read-write	The IP address of the next hop of this route. (In the case of a route bound to an interface which is realized via a broadcast media, the value of this field is the agent's IP address on that interface.)
I32 usrIpRTENhId	1.3.6.1.4.1.429.4.19.24.1.8	Integer32	read-write	The index into the globally defined Next Hop Block.
C32 usrIpRtEntryCountEx	1.3.6.1.4.1.429.4.19.8	Counter32	read-only	this keeps the number of route entries.
I32 usrIpRTEPref	1.3.6.1.4.1.429.4.19.24.1.7	Integer32	read-write	The preference associated with this route after it has been added to the routing table.
INT usrIpRTEProto	1.3.6.1.4.1.429.4.19.24.1.3	INTEGER	read-only	The routing mechanism via which this route was learned. Inclusion of values for gateway routing protocols is not intended to imply that hosts should support those protocols.
STR usrIPRterBaseCfgFileName	1.3.6.1.4.1.429.4.19.21	DisplayString	read-write	The name of a ConfigFile to read/write permanent database records. If the value of this object is an empty string, then the SLIP process uses the default name `@file://SlipFile.cfg'.
USR usrIPRterBaseCFMSaveStatus	1.3.6.1.4.1.429.4.19.22	UsrConfigStatus	read-write	Setting the value of this object to `save' causes the values of the SLIP Base Group entries to be written out to the current SLIP config file. While the new config file is being written, the SLIP process will set the value of this flag set to `saving''. Any attempts to set the value while it is not `normal' (i.e. the file is currently being written to the config file) while result in a badValue error being returned. Setting the value to `normal' will result in no action.
usrIpRTH	1.3.6.1.4.1.429.4.19.23		not-accessible	This entity's IP Routing table.
I32 usrIpRTHAge	1.3.6.1.4.1.429.4.19.23.1.7	Integer32	read-write	The number of seconds since this route was last updated or otherwise determined to be correct. Note that no semantics of `too old' can be implied except through knowledge of the routing protocol by which the route was learned.
I32 usrIpRTHClass	1.3.6.1.4.1.429.4.19.23.1.5	Integer32	read-write	The forward class is preference class associated with this route. There are 3 classes; the lower the class the more preferred the route. Local routes are in Class 0. These are the most preferred routes. OSPF Internal routes are also in Class 0. OSPF internal routes are less preferred than Local Routes. OSPF External routes are Class 1 or Class 2. Static configured and RIP routes are Class 1. BGP and EGP routes are Class 2.
IP usrIpRTHDest	1.3.6.1.4.1.429.4.19.23.1.1	IpAddress	read-write	The destination IP address of this route. An entry with a value of 0.0.0.0 is considered a default route. Multiple routes to a single destination can appear in the table, but access to such multiple entries is dependent on the table- access mechanisms defined by the network management protocol in use.
usrIpRTHEntry	1.3.6.1.4.1.429.4.19.23.1		not-accessible	A route to a particular destination. These routes are learned or written from the forwarder and so these objects are not accessible for SET via CLI or SNMP. The only PDU type implemented is GETNEXT.
I32 usrIpRTHFwdFlags	1.3.6.1.4.1.429.4.19.23.1.6	Integer32	read-write	Forward flags are hints to the forwarding engine as to what to do with the incoming packet.
I32 usrIpRTHIfIndex	1.3.6.1.4.1.429.4.19.23.1.10	Integer32	read-write	The index value which uniquely identifies the local interface through which the next hop of this route should be reached. The interface identified by a particular value of this index is the same interface as identified by the same value of ifIndex.
IP usrIpRTHMask	1.3.6.1.4.1.429.4.19.23.1.2	IpAddress	read-write	Indicate the mask to be logical-ANDed with the destination address before being compared to the value in the ipRTHDest field. For those systems that do not support arbitrary subnet masks, an agent constructs the value of the ipRTHMask by determining whether the value of the correspondent ipRTHDest field belong to a class-A, B, or C network, and then using one of: mask network 255.0.0.0 class-A 255.255.0.0 class-B 255.255.255.0 class-C If the value of the ipRTHDest is 0.0.0.0 (a default route), then the mask value is also 0.0.0.0. It should be noted that all IP routing subsystems implicitly use this mechanism.
I32 usrIpRTHMetric	1.3.6.1.4.1.429.4.19.23.1.4	Integer32	read-write	The primary routing metric for this route. The semantics of this metric are determined by the routing-protocol specified in the route's ipRTHProto value. If this metric is not used, its value should be set to -1.
IP usrIpRTHNextHop	1.3.6.1.4.1.429.4.19.23.1.9	IpAddress	read-write	The IP address of the next hop of this route. (In the case of a route bound to an interface which is realized via a broadcast media, the value of this field is the agent's IP address on that interface.)
I32 usrIpRTHNhId	1.3.6.1.4.1.429.4.19.23.1.8	Integer32	read-write	The index into the globally defined Next Hop Block.
INT usrIpRTHProto	1.3.6.1.4.1.429.4.19.23.1.3	INTEGER	read-only	The routing mechanism via which this route was learned. Inclusion of values for gateway routing protocols is not intended to imply that hosts should support those protocols.
INT usrIpStaticProtoStatus	1.3.6.1.4.1.429.4.19.3	INTEGER	read-write	this variable is used to enable or disable static remote routes

RFC description

Manages IP routing tables, static routes, and routing policy on CommWorks/3Com access equipment.

Start monitoring CommWorks (3Com/U.S. Robotics) remote-access platforms, IP routing (route-table capacity/RIP statistics status) with a free 30-day trial of IPNetwork Monitor. Import MIBs, browse SNMP OIDs, create custom SNMP monitors, configure alerts, and monitor any SNMP-enabled network device from a single console.

Download USR-IP-ROUTING-MIB