jnxJsScreenMonAddrSpoof
JUNIPER-JS-SCREENING-MIB ·
.1.3.6.1.4.1.2636.3.39.1.8.1.1.1.1.7
Object
column
SNMPv2-SMICounter64
One method to gain access to a restricted network is to insert
a bogus source address in the packet header to make the packet
appear to come from a trusted source. This technique is called
IP spoofing. The mechanism to detect IP spoofing relies on
route table entries.
For example, if a packet with source IP address 10.1.1.6 arrives
at port eth3, but the device has a route to 10.1.1.0/24 through
port eth1. IP spoofing checking notes that this address arrived
at an invalid interface as defined in the route table. A valid
packet from 10.1.1.6 can only arrive via eth1, not eth3. The
device concludes that the packet has a spoofed source IP address
and discards it.
This attribute records the address spoofing attack packets.
Context
- MIB
- JUNIPER-JS-SCREENING-MIB
- OID
.1.3.6.1.4.1.2636.3.39.1.8.1.1.1.1.7- Type
- column
- Access
- readonly
- Status
- current
- Parent
- jnxJsScreenMonEntry
Syntax
SNMPv2-SMICounter64
Values & Constraints
No enumerated values or constraints recorded.