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 (192.165.67.x/24) can spoof 8388607 neighboring addresses (within your /9 prefix)
Spoofed source address (anon)
Prefix Length
ASN of spoofed source address
Received
192.165.67.x/24
/31
34971
yes
192.165.67.x/24
/30
34971
yes
192.165.67.x/24
/29
34971
yes
192.165.67.x/24
/28
34971
yes
192.165.67.x/24
/27
34971
yes
192.165.67.x/24
/26
34971
yes
192.165.67.x/24
/25
34971
yes
192.165.67.x/24
/24
34971
yes
192.165.66.x/24
/23
43893
yes
192.165.65.x/24
/22
2119
yes
192.165.75.x/24
/20
43948
yes
192.165.83.x/24
/19
202687
yes
192.165.99.x/24
/18
3246
yes
192.165.195.x/24
/16
12552
yes
192.164.67.x/24
/15
8447
yes
192.167.67.x/24
/14
137
yes
192.161.67.x/24
/13
16832
yes
192.173.67.x/24
/12
55095
yes
192.181.67.x/24
/11
10796
yes
192.229.67.x/24
/9
15003
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
able to spoof routable, non-adjacent source addresses through the
first 9 IP hop(s).
IPv6 probes:
Spoofed source address
Destination
Received
IPv6 Adjacent Netblock Testing:
Spoofed source address (anon)
Prefix Length
ASN of spoofed source address
Received
2a00:dcc0:exx::/40
/120
34971
yes
2a00:dcc0:exx::/40
/112
34971
yes
2a00:dcc0:exx::/40
/104
34971
yes
2a00:dcc0:exx::/40
/96
34971
yes
2a00:dcc0:exx::/40
/88
34971
yes
2a00:dcc0:exx::/40
/80
34971
yes
2a00:dcc0:exx::/40
/72
34971
yes
2a00:dcc0:exx::/40
/64
34971
yes
2a00:dcc0:exx::/40
/56
34971
yes
2a00:dcc0:exx::/40
/48
34971
yes
2a00:dcc0:exx::/40
/40
34971
yes
2a00:dcc0:8exx::/40
/32
34971
yes
Meaning of status in Received column:
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.
