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 (85.140.9.x/24) can spoof 0 neighboring addresses
Spoofed source address (anon)
Prefix Length
ASN of spoofed source address
Received
85.140.9.x/24
/31
8359
natblock
85.140.9.x/24
/30
8359
natblock
85.140.9.x/24
/29
8359
natblock
85.140.9.x/24
/28
8359
natblock
85.140.9.x/24
/27
8359
natblock
85.140.9.x/24
/26
8359
natblock
85.140.9.x/24
/25
8359
natblock
85.140.9.x/24
/24
8359
natblock
85.140.8.x/24
/23
8359
natblock
85.140.11.x/24
/22
8359
natblock
85.140.13.x/24
/21
8359
natblock
85.140.1.x/24
/20
8359
natblock
85.140.25.x/24
/19
8359
natblock
85.140.41.x/24
/18
39811
natblock
85.140.73.x/24
/17
48123
natblock
85.140.137.x/24
/16
8359
natblock
85.141.9.x/24
/15
8359
natblock
85.142.9.x/24
/14
3267
natblock
85.136.9.x/24
/13
6739
natblock
85.132.9.x/24
/12
201167
natblock
85.156.9.x/24
/11
719
natblock
85.172.9.x/24
/10
25490
natblock
85.204.9.x/24
/9
12302
natblock
85.12.9.x/24
/8
UNROUTED
natblock
Meaning of status in Received column:
natblock
Spoofed probe packets appear to be blocked by your local NAT or firewall rather than being rewritten with a public source address.
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 probes:
Spoofed source address
Destination
Received
IPv6 Adjacent Netblock Testing:
Spoofed source address (anon)
Prefix Length
ASN of spoofed source address
Received
2a00:1fa2:42xx::/40
/120
8359
sendto
2a00:1fa2:42xx::/40
/112
8359
sendto
2a00:1fa2:42xx::/40
/104
8359
sendto
2a00:1fa2:42xx::/40
/96
8359
sendto
2a00:1fa2:42xx::/40
/88
8359
sendto
2a00:1fa2:42xx::/40
/80
8359
sendto
2a00:1fa2:42xx::/40
/72
8359
sendto
2a00:1fa2:42xx::/40
/64
8359
sendto
2a00:1fa2:42xx::/40
/56
8359
sendto
2a00:1fa2:42xx::/40
/48
8359
sendto
2a00:1fa2:42xx::/40
/40
8359
sendto
2a00:1fa2:c2xx::/40
/32
28884
sendto
2a00:1f22:42xx::/40
/24
UNROUTED
sendto
2a00:9fa2:42xx::/40
/16
UNROUTED
sendto
Meaning of status in Received column:
sendto
The spoofer client was unable to send spoofed headers due to an operating system restriction.
Summary:
The results from all tests are aggregated to produce a summary
"State of IP Spoofing" report.
