Pattern of tests from this IP block indicates a switch from allowing spoofing to blocking it.
rewritten
Spoofed packet was received, but the source address was changed en route.
blocked
Spoofed packet was not received, but unspoofed packet was.
unknown
Neither spoofed nor unspoofed packet was received.
IPv4 AS Route:
This test run probed the following paths in order to infer your
ability to send different spoofed source packets. Each node
in the graph corresponds to an autonomous system, i.e.
different Internet service providers. NOTE: This graph does NOT show if
an AS blocks spoofed packets, only the path taken by received spoofed
packets. The IP Path Details
are available for this run. If non-spoofed packets weren't received at
a destination, the traceroute to that destination is not included in this
graph and may even cause a totally empty graph.
IPv4 Adjacent Netblock Testing:
Your host (162.244.107.x/24) can spoof 0 neighboring addresses
Spoofed source address (anon)
Prefix Length
ASN of spoofed source address
Received
162.244.107.x/24
/31
4901
sendto
162.244.107.x/24
/30
4901
sendto
162.244.107.x/24
/29
4901
sendto
162.244.107.x/24
/28
4901
sendto
162.244.107.x/24
/27
4901
sendto
162.244.107.x/24
/26
4901
sendto
162.244.107.x/24
/25
4901
sendto
162.244.107.x/24
/24
4901
sendto
162.244.106.x/24
/23
4901
sendto
162.244.105.x/24
/22
4901
sendto
162.244.111.x/24
/21
UNROUTED
sendto
162.244.99.x/24
/20
393365
sendto
162.244.123.x/24
/19
15000
sendto
162.244.75.x/24
/18
18812
sendto
162.244.43.x/24
/17
30325
sendto
162.244.235.x/24
/16
33339
sendto
162.245.107.x/24
/15
55140
sendto
162.246.107.x/24
/14
14813
sendto
162.240.107.x/24
/13
46606
sendto
162.252.107.x/24
/12
53902
sendto
162.228.107.x/24
/11
7018
sendto
162.212.107.x/24
/10
46887
sendto
162.180.107.x/24
/9
21928
sendto
162.116.107.x/24
/8
UNROUTED
sendto
Meaning of status in Received column:
sendto
The spoofer client was unable to send spoofed headers due to an operating system restriction.
IPv4 Outbound Filtering Depth:
The tracefilter test found your host
able to spoof routable, non-adjacent source addresses through the
first 11 IP hop(s).
Summary:
The results from all tests are aggregated to produce a summary
"State of IP Spoofing" report.
