EZ5 MIB Catalog

CISCO-WDS-IDS-MIB

2004-10-17

This MIB is intended to be implemented on all IOS based network entities that provide Wireless Domain Services, for the purpose of providing network management stations information about the various attempts to compromise the security in the 802.11-based wireless networks. Entities that can be configured to provide Wireless Domain Services could be an 802.11 Access Point, a Switch or any other IOS network device, that allows the WDS configuration. The MIB reports the information about the MAC spoofing attempts made by wireless clients to compromise the security of the network. MAC Spoofing is detected by the WDS when clients attempt to authenticate with the WDS using the MAC address of another client while roaming from one AP to another. Upon detecting this, the WDS provides the information about the client and the username to the NMS as MIB objects. The hierarchy of the WDS, AP and MNs is as follows. +=====+ +=====+ +=====+ | | | | | | | WDS | | WDS | | WDS | | | | | | | +=====+ +=====+ +=====+ / \ \ \ / \ \ \ / \ \ \ / \ \ \ / \ \ \ \/ \/ \/ \/ +~-~-~+ +~-~-~+ +~-~-~+ +~-~-~+ + + + + + + + + + AP + + AP + + AP + + AP + + + + + + + + + +~-~-~+ +~-~-~+ +~-~-~+ +~-~-~+ .. . . . .. . . . . . . . . . . . . . . . . . . . . . . . \/ \/ \/ \/ \/ +.....+ +.....+ +-.-.-.+ +~-~-~+ +......+ + + + + + + + + + + + MN + + MN + + MN + + MN + + MN + + + + + + + + + + + +.....+ +.....+ +-.-.-.+ +~-~-~+ +......+ The WDS include authentication and registration services for the APs. An AP provides Proxy Authentication and registration services for the MNs. The wireless connections are represented as dotted lines in the above diagram. GLOSSARY Access Point ( AP ) An entity that contains an 802.11 medium access control ( MAC ) and physical layer ( PHY ) interface and provides access to the distribution services via the wireless medium for associated clients. Mobile Node ( MN ) A roaming 802.11 wireless device in a wireless network associated with an access point. Wireless Domain Services (WDS) The set of services being offered at a particular broadcast domain that may be an IP subnet or a particular VLAN, or across the L3 cloud. The services include the following. 1. MN security credential caching to provide seamless, secure intra-subnet roaming. 2. Authenticated context transfer for roaming client within the subnet. Context The mobility context for an MN includes its current mobility bindings with the APs, IP/802 address bindings, cached configuration parameters, QoS state, IP group membership, authentication state, accounting statistics, and other dynamically derived protocol state information.

Download CISCO-WDS-IDS-MIB.txt Open CISCO-WDS-IDS-MIB.txt in a new tab

SCALARS (2) · TABLES (1)

Scalars (2)

NameOID
ciscoWdsIdsMaxMacAddresses1.3.6.1.4.1.9.9.457.1.1.1
ciscoWdsIdsMaxEntriesPerMac1.3.6.1.4.1.9.9.457.1.1.2

Tables (1)

NameOID
ciscoWdsIdsMacSpoofTable1.3.6.1.4.1.9.9.457.1.1.3

END OF TOC

Scalar details

ciscoWdsIdsMaxMacAddresses

1.3.6.1.4.1.9.9.457.1.1.1

Integer32 (1..2147483647)

This object indicates the maximum number of different MAC addresses for which spoofing events are held in this table.

ciscoWdsIdsMaxEntriesPerMac

1.3.6.1.4.1.9.9.457.1.1.2

Integer32 (1..2147483647)

This object indicates the maximum number of entries that can be held for a particular MAC address indicated by the object ciscoWdsIdsMacSpoofStaMacAddress.

Table details

ciscoWdsIdsMacSpoofTable

1.3.6.1.4.1.9.9.457.1.1.3

Index: ciscoWdsIdsMacSpoofStaMacAddress · ciscoWdsIdsMacSpoofIndex

This table gives the information about the MAC spoofing attacks detected by the network entity offering WDS. An entry in this table is created by the agent when the WDS detects a MAC spoofing attack. The agent at anytime will retain only the most recent and maximum number of entries possible for a particular MAC. The older entries are purged automatically when the number of entries for a particular MAC reaches its maximum. Thus, there can be a maximum of those many different MAC addresses indicated by ciscoWdsIdsMaxMacAddresses and for each MAC address, the maximum number of entries is indicated by the value of the MIB object ciscoWdsIdsMaxEntriesPerMac. MAC spoofing is detected only by the network entity serving as the active WDS and hence this table is populated only by the active WDS as indicated by the values 'wds' and 'active' for the MIB objects cDot11csServiceType and cDot11csWdsInstanceState respectively. If cDot11csServiceType equals 'none' indicating that WDS is not configured in this station, or cDot11csWdsInstanceState not equals 'active' indicating that this entity is not the currently active WDS, a 'noSuchInstance' error is returned for the queries to the objects of this table.

ciscoWdsIdsMacSpoofStaMacAddress

1.3.6.1.4.1.9.9.457.1.1.3.1.1

MacAddressRepresents an 802 MAC address represented in the `canonical' order defined by IEEE 802.1a, i.e., as if it were transmitted least significant bit first, even though 802.5 (in contrast to other 802.x protocols) requires MAC addresses to be transmitted most significant bit first. SIZE (6) · OCTET STRING · hint 1x:

This object identifies the radio interface of the 802.11 station, that has forwarded the authentication request of the client with the spoofed MAC address indicated by ciscoWdsIdsMacSpoofClient, to the WDS.

ciscoWdsIdsMacSpoofIndex

1.3.6.1.4.1.9.9.457.1.1.3.1.2

Unsigned32

This object identifies the set of information about one instance of a MAC spoofing attack detected by the WDS. The radio interface of the 802.11 station that has forwarded the authentication request is identified by ciscoWdsIdsMacSpoofStaMacAddress.

ciscoWdsIdsMacSpoofClient

1.3.6.1.4.1.9.9.457.1.1.3.1.3

MacAddressRepresents an 802 MAC address represented in the `canonical' order defined by IEEE 802.1a, i.e., as if it were transmitted least significant bit first, even though 802.5 (in contrast to other 802.x protocols) requires MAC addresses to be transmitted most significant bit first. SIZE (6) · OCTET STRING · hint 1x:

This object indicates the MAC address that has been spoofed.

ciscoWdsIdsMacSpoofUserId

1.3.6.1.4.1.9.9.457.1.1.3.1.4

SnmpAdminStringAn octet string containing administrative information, preferably in human-readable form. To facilitate internationalization, this information is represented using the ISO/IEC IS 10646-1 character set, encoded as an octet string using the UTF-8 transformation format described in [RFC2279]. Since additional code points are added by amendments to the 10646 standard from time to time, implementations must be prepared to encounter any code point from 0x00000000 to 0x7fffffff. Byte sequences that do not correspond to the valid UTF-8 encoding of a code point or are outside this range are prohibited. The use of control codes should be avoided. When it is necessary to represent a newline, the control code sequence CR LF should be used. The use of leading or trailing white space should be avoided. For code points not directly supported by user interface hardware or software, an alternative means of entry and display, such as hexadecimal, may be provided. For information encoded in 7-bit US-ASCII, the UTF-8 encoding is identical to the US-ASCII encoding. UTF-8 may require multiple bytes to represent a single character / code point; thus the length of this object in octets may be different from the number of characters encoded. Similarly, size constraints refer to the number of encoded octets, not the number of characters represented by an encoding. Note that when this TC is used for an object that is used or envisioned to be used as an index, then a SIZE restriction MUST be specified so that the number of sub-identifiers for any object instance does not exceed the limit of 128, as defined by [RFC3416]. Note that the size of an SnmpAdminString object is measured in octets, not characters. SIZE (1..253) · OCTET STRING · hint 255t

This object indicates the userId used by the wireless client when attempting the MAC spoofing attack.

ciscoWdsIdsMacSpoofDetectTime

1.3.6.1.4.1.9.9.457.1.1.3.1.5

TimeStampThe value of the sysUpTime object at which a specific occurrence happened. The specific occurrence must be defined in the description of any object defined using this type. If sysUpTime is reset to zero as a result of a re- initialization of the network management (sub)system, then the values of all TimeStamp objects are also reset. However, after approximately 497 days without a re- initialization, the sysUpTime object will reach 2^^32-1 and then increment around to zero; in this case, existing values of TimeStamp objects do not change. This can lead to ambiguities in the value of TimeStamp objects. · TimeTicks

This object indicates the time at which this MAC spoofing attempt is detected by the WDS.

↑ To TOC