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David Leutgeb
2023-12-05 12:25:34 +01:00
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--
-- at-dos.mib
-- MIB generated by MG-SOFT Visual MIB Builder Version 3.0 Build 285
-- Wednesday, May 07, 2008 at 15:39:48
--
AT-DOS-MIB DEFINITIONS ::= BEGIN
IMPORTS
modules
FROM AT-SMI-MIB
IpAddress, Counter32, BITS, OBJECT-TYPE, MODULE-IDENTITY,
NOTIFICATION-TYPE
FROM SNMPv2-SMI
TruthValue
FROM SNMPv2-TC;
-- ============================================================================
-- AT-DOS.MIB, Allied Telesis enterprise MIB: Denial of Service defense
--
-- Copyright (c) 2008 by Allied Telesis, Inc.
-- All rights reserved.
--
-- ============================================================================
-- 1.3.6.1.4.1.207.8.4.4.4.143
dosDefense MODULE-IDENTITY
LAST-UPDATED "200804291125Z" -- April 29, 2008 at 11:25 GMT
ORGANIZATION
"Allied Telesis, Inc"
CONTACT-INFO
"http://www.alliedtelesis.com"
DESCRIPTION
"The Denial of Service defense MIB for managing
defenses against denial of service attacks.
"
::= { modules 143 }
--
--
-- -- -----------------------------------
-- -- Global Settings
-- -- -----------------------------------
--
-- Node definitions
--
-- 1.3.6.1.4.1.207.8.4.4.4.143.1
dosDefenseStatus OBJECT-TYPE
SYNTAX INTEGER
{
enabled(1),
disabled(2)
}
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Whether or not the DoS defense module is
currently enabled"
::= { dosDefense 1 }
-- 1.3.6.1.4.1.207.8.4.4.4.143.2
dosDefenseDebugMode OBJECT-TYPE
SYNTAX BITS
{
none(0),
packet(1),
attack(2),
packet/attack(3),
diagnostics(4),
packet/diagnostics(5),
attack/diagnostics(6),
packet/attack/diagnostics(7)
}
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The debugging options enabled for DoS defense. Output goes
to the asynchronous port or telnet session that enabled
debugging.
The bit 'None(0)' indicates that no debugging is enabled.
The bit 'Attack(1)' indicates that information about the
start and finish of attacks is displayed.
The bit 'Packet(2)' indicates that a hexadecimal dump of
the IP header of all suspect packets is displayed.
The bit 'Diagnostics(3)' indicates that additional
debugging and diagnostic messages may be displayed."
::= { dosDefense 2 }
-- 1.3.6.1.4.1.207.8.4.4.4.143.3
dosDefenseNumDebugPackets OBJECT-TYPE
SYNTAX INTEGER { continuous(0) }
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"When packet debugging is enabled, this is the maximum
number of packets that will be displayed before debugging
is automatically disabled. A value of 0 means no limit
(i.e. continuous)."
::= { dosDefense 3 }
-- ----------------------------------------------------------
-- The DoS Defense Table
--
-- Each row of the table contains the configuration for the
-- defense against one attack type on one port.
-- ----------------------------------------------------------
-- 1.3.6.1.4.1.207.8.4.4.4.143.4
dosDefenseTable OBJECT-TYPE
SYNTAX SEQUENCE OF DosDefenseEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A table of configuration and status information for
each defense configured on a port."
::= { dosDefense 4 }
-- 1.3.6.1.4.1.207.8.4.4.4.143.4.1
dosDefenseEntry OBJECT-TYPE
SYNTAX DosDefenseEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The configuration and status of the defense against
a single attack type on a single port."
INDEX { dosDefensePort, dosDefenseAttackType }
::= { dosDefenseTable 1 }
DosDefenseEntry ::=
SEQUENCE {
dosDefensePort
INTEGER,
dosDefenseAttackType
INTEGER,
dosDefenseDefenseStatus
INTEGER,
dosDefenseThreshold
INTEGER,
dosDefenseBlockTime
INTEGER,
dosDefenseMirroring
TruthValue,
dosDefensePortType
INTEGER,
dosDefenseSubnetAddress
IpAddress,
dosDefenseSubnetMask
IpAddress,
dosDefenseAttackState
INTEGER,
dosDefenseAttackCount
Counter32,
dosDefenseRemainingBlockTime
INTEGER
}
-- 1.3.6.1.4.1.207.8.4.4.4.143.4.1.1
dosDefensePort OBJECT-TYPE
SYNTAX INTEGER (1..1023)
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The port index on which the defense is configured."
::= { dosDefenseEntry 1 }
-- 1.3.6.1.4.1.207.8.4.4.4.143.4.1.2
dosDefenseAttackType OBJECT-TYPE
SYNTAX INTEGER
{
synFlood(1),
pingOfDeath(2),
smurf(3),
ipOptions(4),
land(5),
teardrop(6),
none(7)
}
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The type of attack this defense protects against."
::= { dosDefenseEntry 2 }
-- 1.3.6.1.4.1.207.8.4.4.4.143.4.1.3
dosDefenseDefenseStatus OBJECT-TYPE
SYNTAX INTEGER
{
enabled(1),
disabled(2),
set(3)
}
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Whether or not this attack is currently enabled
on this port."
::= { dosDefenseEntry 3 }
-- 1.3.6.1.4.1.207.8.4.4.4.143.4.1.4
dosDefenseThreshold OBJECT-TYPE
SYNTAX INTEGER (0..1023)
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The threshold, in packets per second, at which an
attack is deemed to be in progress.
If dosDefenseAttackType is SYNFlood(1), a value of 0 means
no threshold has been set and the default thresholds apply.
An attack is suspected when the SYN:ACK ratio exceeds 2:1
above 20 packets per second, in any one-second interval.
An attack is in progress when the SYN:ACK ratio exceeds 3:1
above 20 packets per second, in any one-second interval, or
an attack is suspected more than once within a
dosDefenseBlockTime interval.
If dosDefenseAttackType is Smurf(3), a value of 0 means
the filter will block all broadcast ICMP requests.
A threshold greater than 0 will block after that number of
ICMP requests are received in a 1 second interval."
::= { dosDefenseEntry 4 }
-- 1.3.6.1.4.1.207.8.4.4.4.143.4.1.5
dosDefenseBlockTime OBJECT-TYPE
SYNTAX INTEGER (1..65535)
UNITS "seconds"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The time, in seconds, that must elapse after the last
malicious packet is seen, before an attack is deemed
to have finished and the port stops blocking traffic.
If dosDefenseAttackType is SYNFlood(1), it is also
the maximum time an attack is suspected before it
returns to a state of no attack."
::= { dosDefenseEntry 5 }
-- 1.3.6.1.4.1.207.8.4.4.4.143.4.1.6
dosDefenseMirroring OBJECT-TYPE
SYNTAX TruthValue
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Whether or not suspect traffic received by this port
is copied to the pre-configured mirror port."
::= { dosDefenseEntry 6 }
-- 1.3.6.1.4.1.207.8.4.4.4.143.4.1.7
dosDefensePortType OBJECT-TYPE
SYNTAX INTEGER
{
notApplicable(0),
client(1),
gateway(2)
}
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"If dosDefenseAttackType is Land(6), the type of port.
For other values of dosDefenseAttackType, this object
returns notapplicable(0).
A device connected to a client(1) port should have an IP
address in the local subnet, and be the original source or
ultimate destination of packets transiting the network.
Incoming packets should have a source address in the local
subnet. Outgoing packets should have a destination address
in the local subnet.
A gateway(2) port is connected directly to a gateway device
attached to external networks. Apart from a small number of
packets from the gateway device itself, all packets arriving
at the gateway port should be from other subnets. Incoming
packets should have a source address not in the local
subnet. Outgoing packets should have a destination address
not in the local subnet."
::= { dosDefenseEntry 7 }
-- 1.3.6.1.4.1.207.8.4.4.4.143.4.1.8
dosDefenseSubnetAddress OBJECT-TYPE
SYNTAX IpAddress
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"If dosDefenseAttackType is Smurf(3), the subnet address
is used to determine the local broadcast address.
If dosDefenseAttackType is Land(6), the subnet address
used to determine which addresses are local or remote.
For other values of dosDefenseAttackType, this object
returns 0.0.0.0."
::= { dosDefenseEntry 8 }
-- 1.3.6.1.4.1.207.8.4.4.4.143.4.1.9
dosDefenseSubnetMask OBJECT-TYPE
SYNTAX IpAddress
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"If dosDefenseAttackType is Smurf(3), the subnet mask
is used to determine the local broadcast address.
If dosDefenseAttackType is Land(6), the subnet mask
used to determine which addresses are local or remote.
For other values of dosDefenseAttackType, this object
returns 0.0.0.0."
::= { dosDefenseEntry 9 }
-- 1.3.6.1.4.1.207.8.4.4.4.143.4.1.10
dosDefenseAttackState OBJECT-TYPE
SYNTAX INTEGER
{
none(0),
suspected(1),
inProgress(2)
}
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Whether or not an attack is currently in progress on the
port.
None(0) means no attack is in progress.
If dosDefenseAttackType is SYNFlood(1), Suspected(1)
means a SYN Flood attack is suspected. A threshold has
not been set, and the default threshold of a SYN:ACK
ratio of 2:1 above 20 packets per second has been
reached.
If dosDefenseAttackType is PingOfDeath(2), Teardrop(5)
or Land(6), Suspected means that some suspect packets
have been received but have not yet been analysed to
determine if an attack exists.
InProgress(2) means an attack is in progress."
::= { dosDefenseEntry 10 }
-- 1.3.6.1.4.1.207.8.4.4.4.143.4.1.11
dosDefenseAttackCount OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of attacks (attacked seconds) detected
on this port."
::= { dosDefenseEntry 11 }
-- 1.3.6.1.4.1.207.8.4.4.4.143.4.1.12
dosDefenseRemainingBlockTime OBJECT-TYPE
SYNTAX INTEGER (0..65535)
UNITS "seconds"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The time remaining"
::= { dosDefenseEntry 12 }
-- -------------------------------------------
-- DoS Attack Start and End traps
-- -------------------------------------------
--
-- 1.3.6.1.4.1.207.8.4.4.4.143.5
dosDefenseTraps OBJECT IDENTIFIER::= { dosDefense 5 }
-- 1.3.6.1.4.1.207.8.4.4.4.143.5.1
dosDefenseAttackStart NOTIFICATION-TYPE
OBJECTS { dosDefensePort, dosDefenseAttackType }
STATUS current
DESCRIPTION
"Triggered when an attack is detected on a port."
::= { dosDefenseTraps 1 }
-- 1.3.6.1.4.1.207.8.4.4.4.143.5.2
dosDefenseAttackEnd NOTIFICATION-TYPE
OBJECTS { dosDefensePort, dosDefenseAttackType }
STATUS current
DESCRIPTION
"Triggered when an attack is finished on a port.
This occurs after an attack packet has not been
seen for a complete BlockTime period."
::= { dosDefenseTraps 2 }
END
--
-- at-dos.mib
--