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 (196.200.209.x/24) can spoof 16777215 neighboring addresses (within your /8 prefix)
Spoofed source address (anon)
Prefix Length
ASN of spoofed source address
Received
196.200.209.x/24
/31
37095
yes
196.200.209.x/24
/30
37095
yes
196.200.209.x/24
/29
37095
yes
196.200.209.x/24
/28
37095
yes
196.200.209.x/24
/27
37095
yes
196.200.209.x/24
/26
37095
yes
196.200.209.x/24
/25
37095
yes
196.200.209.x/24
/24
37095
yes
196.200.208.x/24
/23
37095
yes
196.200.211.x/24
/22
37095
yes
196.200.213.x/24
/21
37095
yes
196.200.217.x/24
/20
37095
yes
196.200.193.x/24
/19
UNROUTED
yes
196.200.241.x/24
/18
16206
yes
196.200.145.x/24
/17
30983
yes
196.200.81.x/24
/16
30985
yes
196.201.209.x/24
/15
33771
yes
196.202.209.x/24
/14
12455
yes
196.204.209.x/24
/13
24835
yes
196.192.209.x/24
/12
UNROUTED
yes
196.216.209.x/24
/11
37495
yes
196.232.209.x/24
/10
UNROUTED
yes
196.136.209.x/24
/9
36935
yes
196.72.209.x/24
/8
6713
yes
Meaning of status in Received column:
yes
Packets spoofed from adjacent netblock were received
yes
Packets spoofed from adjacent netblock were received (but that netblock is within the source AS)
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 probes:
Spoofed source address
Destination
Received
2001:4978:1fb:6400::d2
2001:388:1:5001:21c:c0ff:fea2:4a3a
yes
2001:49aa:111:aa00::11
2001:388:1:5001:21c:c0ff:fea2:4a3a
yes
fd11:1111:1111::1111
2001:388:1:5001:21c:c0ff:fea2:4a3a
yes
2001:4978:1fb:6400::d2
2001:410:102:1::78
yes
2001:49aa:111:aa00::11
2001:410:102:1::78
yes
fd11:1111:1111::1111
2001:410:102:1::78
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::242
yes
2001:49aa:111:aa00::11
2001:48d0:101:501::242
yes
fd11:1111:1111::1111
2001:48d0:101:501::242
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
IPv6 Adjacent Netblock Testing:
Spoofed source address (anon)
Prefix Length
ASN of spoofed source address
Received
2001:43f8:2xx::/40
/120
37095
yes
2001:43f8:2xx::/40
/112
37095
yes
2001:43f8:2xx::/40
/104
37095
yes
2001:43f8:2xx::/40
/96
37095
yes
2001:43f8:2xx::/40
/88
37095
yes
2001:43f8:2xx::/40
/80
37095
yes
2001:43f8:2xx::/40
/72
37095
yes
2001:43f8:2xx::/40
/64
37095
yes
2001:43f8:2xx::/40
/56
37095
yes
2001:43f8:2xx::/40
/48
37095
yes
2001:43f8:2xx::/40
/40
32279
yes
2001:43f8:82xx::/40
/32
UNROUTED
yes
2001:4378:2xx::/40
/24
UNROUTED
yes
2001:c3f8:2xx::/40
/16
UNROUTED
yes
Meaning of status in Received column:
yes
Packets spoofed from adjacent netblock were received
yes
Packets spoofed from adjacent netblock were received (but that netblock is within the source AS)
Summary:
The results from all tests are aggregated to produce a summary
"State of IP Spoofing" report.