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 (103.102.230.x/24) can spoof 4194303 neighboring addresses (within your /10 prefix)
Spoofed source address (anon)
Prefix Length
ASN of spoofed source address
Received
103.102.230.x/24
/31
213382
yes
103.102.230.x/24
/30
213382
no
103.102.230.x/24
/29
213382
yes
103.102.230.x/24
/28
213382
yes
103.102.230.x/24
/27
213382
yes
103.102.230.x/24
/26
213382
yes
103.102.230.x/24
/25
213382
yes
103.102.230.x/24
/24
213382
yes
103.102.231.x/24
/23
UNROUTED
no
103.102.228.x/24
/22
216167
yes
103.102.226.x/24
/21
137036
yes
103.102.238.x/24
/20
137041
yes
103.102.246.x/24
/19
137045
yes
103.102.198.x/24
/18
63603
yes
103.102.166.x/24
/17
14907
yes
103.102.102.x/24
/16
136719
yes
103.103.230.x/24
/15
UNROUTED
no
103.100.230.x/24
/14
135926
yes
103.98.230.x/24
/13
UNROUTED
no
103.110.230.x/24
/12
137499
yes
103.118.230.x/24
/11
4787
yes
103.70.230.x/24
/10
132123
yes
103.38.230.x/24
/9
UNROUTED
no
103.230.230.x/24
/8
UNROUTED
no
Meaning of status in Received column:
no
Packets spoofed from adjacent netblock were not received, probably due to blocking
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 10 IP hop(s).
Summary:
The results from all tests are aggregated to produce a summary
"State of IP Spoofing" report.