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.
Warnings:
⚠️ Your host was unable to source even non-spoofed IPv4 UDP traffic to our servers. A firewall, router or other middlebox is preventing our testing. To test your provider's network further, you must remove the firewall or router and connect directly.
⚠️ Your host was unable to source even non-spoofed IPv6 UDP traffic to our servers. A firewall, router or other middlebox is preventing our testing. To test your provider's network further, you must remove the firewall or router and connect directly.
⚠️ The spoofer client was unable to send spoofed headers due to an operating system restriction.
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 (89.42.61.x/24) can spoof 0 neighboring addresses
Spoofed source address (anon)
Prefix Length
ASN of spoofed source address
Received
89.42.61.x/24
/31
206026
sendto
89.42.61.x/24
/30
206026
sendto
89.42.61.x/24
/29
206026
sendto
89.42.61.x/24
/28
206026
sendto
89.42.61.x/24
/27
206026
sendto
89.42.61.x/24
/26
206026
sendto
89.42.61.x/24
/25
206026
sendto
89.42.61.x/24
/24
206026
sendto
89.42.60.x/24
/23
206026
sendto
89.42.63.x/24
/22
197556
sendto
89.42.57.x/24
/21
UNROUTED
sendto
89.42.53.x/24
/20
213241
sendto
89.42.45.x/24
/19
UNROUTED
sendto
89.42.29.x/24
/18
199737
sendto
89.42.125.x/24
/17
UNROUTED
sendto
89.42.189.x/24
/16
58224
sendto
89.43.61.x/24
/15
44277
sendto
89.40.61.x/24
/14
21299
sendto
89.46.61.x/24
/13
39501
sendto
89.34.61.x/24
/12
57218
sendto
89.58.61.x/24
/11
197540
sendto
89.10.61.x/24
/10
15659
sendto
89.106.61.x/24
/9
39484
sendto
89.170.61.x/24
/8
34383
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 Adjacent Netblock Testing:
Spoofed source address (anon)
Prefix Length
ASN of spoofed source address
Received
2a0d:b201:90xx::/40
/120
206026
sendto
2a0d:b201:90xx::/40
/112
206026
sendto
2a0d:b201:90xx::/40
/104
206026
sendto
2a0d:b201:90xx::/40
/96
206026
sendto
2a0d:b201:90xx::/40
/88
206026
sendto
2a0d:b201:90xx::/40
/80
206026
sendto
2a0d:b201:90xx::/40
/72
206026
sendto
2a0d:b201:90xx::/40
/64
206026
sendto
2a0d:b201:90xx::/40
/56
206026
sendto
2a0d:b201:90xx::/40
/48
206026
sendto
2a0d:b201:90xx::/40
/40
197556
sendto
2a0d:b201:10xx::/40
/32
206026
sendto
2a0d:b281:90xx::/40
/24
41720
sendto
2a0d:3201:90xx::/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.
