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 is behind a Network Address Translation (NAT) router or firewall but spoofed packets are still being received without modification. See here for more information.
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 (89.248.135.x/24) can spoof 0 neighboring addresses
Spoofed source address (anon)
Prefix Length
ASN of spoofed source address
Received
89.248.135.x/24
/31
42517
sendto
89.248.135.x/24
/30
42517
sendto
89.248.135.x/24
/29
42517
sendto
89.248.135.x/24
/28
42517
sendto
89.248.135.x/24
/27
42517
sendto
89.248.135.x/24
/26
42517
sendto
89.248.135.x/24
/25
42517
sendto
89.248.135.x/24
/24
42517
sendto
89.248.134.x/24
/23
42517
sendto
89.248.133.x/24
/22
42517
sendto
89.248.131.x/24
/21
42517
sendto
89.248.143.x/24
/20
42517
sendto
89.248.151.x/24
/19
20634
sendto
89.248.167.x/24
/18
29073
sendto
89.248.199.x/24
/17
41270
sendto
89.248.7.x/24
/16
34087
sendto
89.249.135.x/24
/15
41311
sendto
89.250.135.x/24
/14
12337
sendto
89.252.135.x/24
/13
UNROUTED
sendto
89.240.135.x/24
/12
13285
sendto
89.232.135.x/24
/11
30745
sendto
89.216.135.x/24
/10
31042
sendto
89.184.135.x/24
/9
39642
sendto
89.120.135.x/24
/8
9050
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 probes:
Spoofed source address
Destination
Received
2001:4978:1fb:6400::d2
2001:388:1:5001:21c:c0ff:fea2:4a3a
yes
2001:4978:1fb:6400::d2
2001:410:90ff::5
yes
2001:49aa:111:aa00::11
2001:410:90ff::5
yes
fd11:1111:1111::1111
2001:410:90ff::5
yes
2001:4978:1fb:6400::d2
2001:48d0:101:501::247
yes
2001:49aa:111:aa00::11
2001:48d0:101:501::247
yes
fd11:1111:1111::1111
2001:48d0:101:501::247
yes
2001:4978:1fb:6400::d2
2001:610:510:115:192:42:115:98
yes
2001:4978:1fb:6400::d2
2001:630:212:225:225:90ff:fe0c:45a6
yes
2001:4978:1fb:6400::d2
2001:708:40:2001:21c:c0ff:fea2:4c5c
yes
2001:49aa:111:aa00::11
2001:708:40:2001:21c:c0ff:fea2:4c5c
yes
2001:4978:1fb:6400::d2
2001:770:18:7:225:90ff:fe0c:acb4
yes
2001:49aa:111:aa00::11
2001:770:18:7:225:90ff:fe0c:acb4
yes
fd11:1111:1111::1111
2001:770:18:7:225:90ff:fe0c:acb4
yes
IPv6 Adjacent Netblock Testing:
Spoofed source address (anon)
Prefix Length
ASN of spoofed source address
Received
2a00:1ae8:1xx::/40
/120
42517
sendto
2a00:1ae8:1xx::/40
/112
42517
sendto
2a00:1ae8:1xx::/40
/104
42517
sendto
2a00:1ae8:1xx::/40
/96
42517
sendto
2a00:1ae8:1xx::/40
/88
42517
sendto
2a00:1ae8:1xx::/40
/80
42517
sendto
2a00:1ae8:1xx::/40
/72
42517
sendto
2a00:1ae8:1xx::/40
/64
42517
sendto
2a00:1ae8:1xx::/40
/56
42517
sendto
2a00:1ae8:1xx::/40
/48
42517
sendto
2a00:1ae8:1xx::/40
/40
42517
sendto
2a00:1ae8:81xx::/40
/32
42517
sendto
2a00:1a68:1xx::/40
/24
38955
sendto
2a00:9ae8:1xx::/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.
