A3COM-HUAWEI-TUNNEL-MIB

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Organization: Huawei 3Com Technologies Co., Ltd.

Last Updated: 2005-06-04

Category: IP and Core Protocols, Vendor: H3C/HH3C

Description: Manages IP tunnel interfaces on H3C/3Com routers, including GRE, IPIP, and IPv6 tunnel configuration with endpoint addressing and encapsulation parameters.

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What Is A3COM-HUAWEI-TUNNEL-MIB?

This MIB manages IP tunnel interfaces -- GRE, IPIP, and IPv6-in-IP tunnels -- on H3C/3Com routers. It exposes configuration data such as encapsulation method, hop limit, TOS/flow-label handling, and local/remote endpoint addressing, indexed by tunnel interface. Per the module description it also supports monitoring tunnels, so an operator can check parameters like hop limit and endpoint address consistency to detect misconfigured or non-functional tunnels. It builds on IETF tunnel MIB conventions and standard ifTable interface indexing. It's deployed in WAN/VPN environments where 3Com/H3C routers terminate GRE or IPv6 transition tunnels. Engineers can download the A3COM-HUAWEI-TUNNEL-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in A3COM-HUAWEI-TUNNEL-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

H3C/3Com routers

Monitoring Examples

An admin would walk h3cTunnelIfTable, examining h3cTunnelIfLocalInetAddress and h3cTunnelIfRemoteInetAddress for each h3cTunnelIfEntry to verify tunnel endpoints match the intended topology, and check h3cTunnelIfEncapsMethod to confirm the correct encapsulation (GRE vs IPIP vs IPv6) is configured. Watching h3cTunnelIfHopLimit and h3cTunnelIfTOS helps diagnose why traffic through a specific tunnel is being dropped or mis-prioritized. The h3cTunnelInetConfigTable provides a complementary view for cross-checking address-family-specific tunnel settings.

What Can Be Monitored

tunnel encapsulation method
local and remote tunnel endpoint addresses
hop limit / TTL
TOS and flow label settings
IP security option
tunnel address type (IPv4/IPv6)

Imported Objects

From A3COM-HUAWEI-OID-MIB

h3cCommon

OBJECT-IDENTITY

From IF-MIB

InterfaceIndexOrZero
ifIndex	OBJECT-TYPE

From INET-ADDRESS-MIB

InetAddress
InetAddressType

From IPV6-FLOW-LABEL-MIB

IPv6FlowLabelOrAny

From SNMPv2-CONF

MODULE-COMPLIANCE
OBJECT-GROUP

From SNMPv2-SMI

Integer32
IpAddress
MODULE-IDENTITY
OBJECT-TYPE

From SNMPv2-TC

RowStatus
StorageType
TEXTUAL-CONVENTION

OIDs

OID symbolic	OID numeric	Type	Access	Description
h3cTunnel	1.3.6.1.4.1.43.45.1.10.2.53			This MIB contains objects to Manage configuration and Monitor tunnel.
h3cTunnelMIBObjects	1.3.6.1.4.1.43.45.1.10.2.53.1
h3cTunnelTables	1.3.6.1.4.1.43.45.1.10.2.53.1.1
h3cTunnelIfTable	1.3.6.1.4.1.43.45.1.10.2.53.1.1.1		not-accessible	The (conceptual) table containing information on configured tunnels.
h3cTunnelIfEntry	1.3.6.1.4.1.43.45.1.10.2.53.1.1.1.1		not-accessible	An entry (conceptual row) containing the information on a particular configured tunnel.
H3C h3cTunnelIfEncapsMethod	1.3.6.1.4.1.43.45.1.10.2.53.1.1.1.1.3	H3cTunnelType	read-write	The encapsulation method used by the tunnel.
I32 h3cTunnelIfHopLimit	1.3.6.1.4.1.43.45.1.10.2.53.1.1.1.1.4	Integer32	read-only	The IPv4 TTL or IPv6 Hop Limit to use in the outer IP header. A value of 0 indicates that the value is copied from the payload's header.
INT h3cTunnelIfSecurity	1.3.6.1.4.1.43.45.1.10.2.53.1.1.1.1.5	INTEGER	read-only	The method used by the tunnel to secure the outer IP header. The value ipsec indicates that IPsec is used between the tunnel endpoints for authentication or encryption or both. More specific security-related information may be available in a MIB module for the security protocol in use.
I32 h3cTunnelIfTOS	1.3.6.1.4.1.43.45.1.10.2.53.1.1.1.1.6	Integer32	read-only	The method used to set the high 6 bits (the differentiated services codepoint) of the IPv4 TOS or IPv6 Traffic Class in the outer IP header. A value of -1 indicates that the bits are copied from the payload's header. A value of -2 indicates that a traffic conditioner is invoked and more information may be available in a traffic conditioner MIB module. A value between 0 and 63 inclusive indicates that the bit field is set to the indicated value.
IPV h3cTunnelIfFlowLabel	1.3.6.1.4.1.43.45.1.10.2.53.1.1.1.1.7	IPv6FlowLabelOrAny	read-only	The method used to set the IPv6 Flow Label value. This object need not be present in rows where h3cTunnelIfAddressType indicates the tunnel is not over IPv6. A value of -1 indicates that a traffic conditioner is invoked and more information may be available in a traffic conditioner MIB. Any other value indicates that the Flow Label field is set to the indicated value.
IPt h3cTunnelIfAddressType	1.3.6.1.4.1.43.45.1.10.2.53.1.1.1.1.8	InetAddressType	read-write	The type of address in the corresponding h3cTunnelIfLocalInetAddress and h3cTunnelIfRemoteInetAddress objects.
IP h3cTunnelIfLocalInetAddress	1.3.6.1.4.1.43.45.1.10.2.53.1.1.1.1.9	InetAddress	read-write	The address of the local endpoint of the tunnel (i.e., the source address used in the outer IP header). If the address is unknown, the value is 0.0.0.0 for IPv4 or :: for IPv6. The type of this object is given by h3cTunnelIfAddressType.
IP h3cTunnelIfRemoteInetAddress	1.3.6.1.4.1.43.45.1.10.2.53.1.1.1.1.10	InetAddress	read-write	The address of the remote endpoint of the tunnel (i.e., the destination address used in the outer IP header). If the address is unknown or the tunnel is not a point-to-point link (e.g., if it is a 6to4 tunnel), the value is 0.0.0.0 for tunnels over IPv4 or :: for tunnels over IPv6. The type of this object is given by h3cTunnelIfAddressType.
I32 h3cTunnelIfEncapsLimit	1.3.6.1.4.1.43.45.1.10.2.53.1.1.1.1.11	Integer32	read-only	The maximum number of additional encapsulations permitted for packets undergoing encapsulation at this node. A value of -1 indicates that no limit is present (except as a result of the packet size).
h3cTunnelInetConfigTable	1.3.6.1.4.1.43.45.1.10.2.53.1.1.3		not-accessible	The (conceptual) table containing information on configured tunnels. This table can be used to map a set of tunnel endpoints to the associated ifIndex value. It can also be used for row creation. Note that every row in the h3cTunnelIfTable with a fixed destination address should have a corresponding row in the h3cTunnelInetConfigTable, regardless of whether it was created via SNMP.
h3cTunnelInetConfigEntry	1.3.6.1.4.1.43.45.1.10.2.53.1.1.3.1		not-accessible	An entry (conceptual row) containing the information on a particular configured tunnel.
I32 h3cTunnelInetConfigSlot	1.3.6.1.4.1.43.45.1.10.2.53.1.1.3.1.1	Integer32	not-accessible	Slot number. h3cTunnelInetConfigSlot, h3cTunnelInetConfigSubSlot and h3cTunnelInetConfigTunnNum descirbe a tunnel interface. For Example, interface tunnel 0/0/25 would be configured as: h3cTunnelInetConfigSlot 0 h3cTunnelInetConfigSubSlot 0 h3cTunnelInetConfigTunnNum 25
I32 h3cTunnelInetConfigSubSlot	1.3.6.1.4.1.43.45.1.10.2.53.1.1.3.1.2	Integer32	not-accessible	Sub slot number. As described in h3cTunnelInetConfigSlot's description.
I32 h3cTunnelInetConfigTunnNum	1.3.6.1.4.1.43.45.1.10.2.53.1.1.3.1.3	Integer32	not-accessible	Tunnel number. As described in h3cTunnelInetConfigSlot's description.
NUM h3cTunnelInetConfigIfIndex	1.3.6.1.4.1.43.45.1.10.2.53.1.1.3.1.6	InterfaceIndexOrZero	read-only	If the value of h3cTunnelInetConfigStatus for this row is active, then this object contains the value of ifIndex corresponding to the tunnel interface. A value of 0 is not legal in the active state, and means that the interface index has not yet been assigned.
ROW h3cTunnelInetConfigStatus	1.3.6.1.4.1.43.45.1.10.2.53.1.1.3.1.7	RowStatus	read-create	The status of this row, by which new entries may be created, or old entries deleted from this table. The agent need not support setting this object to createAndWait or notInService since there are no other writable objects in this table, and writable objects in rows of corresponding tables such as the h3cTunnelIfTable may be modified while this row is active. To create a row in this table, the management station should set h3cTunnelInetConfigSlot, h3cTunnelInetConfigSubSlot, h3cTunnelInetConfigTunnNum, and set h3cTunnelInetConfigStatus to createAndGo. Creating a row in this table will cause an interface index to be assigned by the agent in an implementation-dependent manner, and corresponding rows will be instantiated in the ifTable and the h3cTunnelIfTable. The status of this row will become active as soon as the agent assigns the interface index, regardless of whether the interface is operationally up. Deleting a row in this table will likewise delete the corresponding row in the ifTable and in the h3cTunnelIfTable.

RFC description

Huawei tunnel management MIB covering VPN tunnel configuration and statistics on enterprise gateway devices.

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Download A3COM-HUAWEI-TUNNEL-MIB

What Is A3COM-HUAWEI-TUNNEL-MIB?

Supported Devices

Monitoring Examples

What Can Be Monitored

This MIB depends on

Related MIBs

RFC description