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 (185.140.116.x/24) can spoof 0 neighboring addresses
Spoofed source address (anon)
Prefix Length
ASN of spoofed source address
Received
185.140.116.x/24
/31
20625
sendto
185.140.116.x/24
/30
20625
sendto
185.140.116.x/24
/29
20625
sendto
185.140.116.x/24
/28
20625
sendto
185.140.116.x/24
/27
20625
sendto
185.140.116.x/24
/26
20625
sendto
185.140.116.x/24
/25
20625
sendto
185.140.116.x/24
/24
20625
sendto
185.140.117.x/24
/23
20625
sendto
185.140.118.x/24
/22
20625
sendto
185.140.112.x/24
/21
202558
sendto
185.140.124.x/24
/20
57152
sendto
185.140.100.x/24
/19
203272
sendto
185.140.84.x/24
/18
31382
sendto
185.140.52.x/24
/17
48767
sendto
185.140.244.x/24
/16
48602
sendto
185.141.116.x/24
/15
64200
sendto
185.142.116.x/24
/14
203035
sendto
185.136.116.x/24
/13
1835
sendto
185.132.116.x/24
/12
56844
sendto
185.156.116.x/24
/11
56444
sendto
185.172.116.x/24
/10
UNROUTED
sendto
185.204.116.x/24
/9
UNROUTED
sendto
185.12.116.x/24
/8
8426
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
unable to spoof routable, non-adjacent source addresses through
even the first IP hop.
IPv6 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.
IPv6 Adjacent Netblock Testing:
Spoofed source address (anon)
Prefix Length
ASN of spoofed source address
Received
2001:67c:25xx::/40
/120
20626
no
2001:67c:25xx::/40
/112
20626
no
2001:67c:25xx::/40
/104
20626
no
2001:67c:25xx::/40
/96
20626
no
2001:67c:25xx::/40
/88
20626
no
2001:67c:25xx::/40
/80
20626
no
2001:67c:25xx::/40
/72
20626
no
2001:67c:25xx::/40
/64
20626
no
2001:67c:25xx::/40
/56
20626
no
2001:67c:25xx::/40
/48
20626
no
2001:67c:25xx::/40
/40
UNROUTED
no
2001:67c:a5xx::/40
/32
UNROUTED
no
2001:6fc:25xx::/40
/24
UNROUTED
no
2001:867c:25xx::/40
/16
1221
no
Meaning of status in Received column:
no
Packets spoofed from adjacent netblock were not received, probably due to blocking
Summary:
The results from all tests are aggregated to produce a summary
"State of IP Spoofing" report.
