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 (45.6.249.x/24) can spoof 2097151 neighboring addresses (within your /11 prefix)
Spoofed source address (anon)
Prefix Length
ASN of spoofed source address
Received
45.6.249.x/24
/31
28002
sendto
45.6.249.x/24
/30
28002
sendto
45.6.249.x/24
/29
28002
sendto
45.6.249.x/24
/28
28002
sendto
45.6.249.x/24
/27
28002
sendto
45.6.249.x/24
/26
28002
sendto
45.6.249.x/24
/25
28002
sendto
45.6.249.x/24
/24
28002
sendto
45.6.248.x/24
/23
28002
sendto
45.6.251.x/24
/22
28002
sendto
45.6.253.x/24
/21
28002
sendto
45.6.241.x/24
/20
264386
sendto
45.6.233.x/24
/19
61649
sendto
45.6.217.x/24
/18
266247
sendto
45.6.185.x/24
/17
266164
sendto
45.6.121.x/24
/16
266158
sendto
45.7.249.x/24
/15
265738
sendto
45.4.249.x/24
/14
266064
sendto
45.2.249.x/24
/13
7311
sendto
45.14.249.x/24
/12
208925
sendto
45.22.249.x/24
/11
7018
yes
45.38.249.x/24
/10
3561
sendto
45.70.249.x/24
/9
267610
sendto
45.134.249.x/24
/8
20712
sendto
Meaning of status in Received column:
yes
Packets spoofed from adjacent netblock were received
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
unable to spoof routable, non-adjacent source addresses through
even the first IP hop.
Summary:
The results from all tests are aggregated to produce a summary
"State of IP Spoofing" report.