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 (2.57.184.x/24) can spoof 0 neighboring addresses
Spoofed source address (anon)
Prefix Length
ASN of spoofed source address
Received
2.57.184.x/24
/31
210200
sendto
2.57.184.x/24
/30
210200
sendto
2.57.184.x/24
/29
210200
sendto
2.57.184.x/24
/28
210200
sendto
2.57.184.x/24
/27
210200
sendto
2.57.184.x/24
/26
210200
sendto
2.57.184.x/24
/25
210200
sendto
2.57.184.x/24
/24
210200
sendto
2.57.185.x/24
/23
210200
sendto
2.57.186.x/24
/22
210200
sendto
2.57.188.x/24
/21
209189
sendto
2.57.176.x/24
/20
203020
sendto
2.57.168.x/24
/19
62240
sendto
2.57.152.x/24
/18
209868
sendto
2.57.248.x/24
/17
11325
sendto
2.57.56.x/24
/16
48635
sendto
2.56.184.x/24
/15
213085
sendto
2.59.184.x/24
/14
UNROUTED
sendto
2.61.184.x/24
/13
12389
sendto
2.49.184.x/24
/12
5384
sendto
2.41.184.x/24
/11
30722
sendto
2.25.184.x/24
/10
12576
sendto
2.121.184.x/24
/9
5607
sendto
2.185.184.x/24
/8
58224
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 1 IP hop(s).
Summary:
The results from all tests are aggregated to produce a summary
"State of IP Spoofing" report.