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Session Report

Summary:
Test run at: 2021-04-06 01:57:58 GMT
Client Prefix (v4): 103.202.217.x/24
Client AS (v4): 59105 (HOMENOC)
IPv4 Probes: 66
Client Prefix (v6): 2403:bd80:c1xx::/40
Client AS (v6): 59105 (HOMENOC)
IPv6 Probes: 56
Outbound spoofing summary (from the client to our server)
Source address type IPv4IPv6
Private - RFC1918 or ULA blockedblocked
Routable receivedblocked
Largest spoofable neighbor prefix length /8/48

Meaning of result status in column:

receivedSpoofed packet was received.Pattern of tests from this IP block indicates a switch from allowing spoofing to blocking it.
rewrittenSpoofed packet was received, but the source address was changed en route.
blockedSpoofed packet was not received, but unspoofed packet was.
unknownNeither spoofed nor unspoofed packet was received.

Warnings:

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 (103.202.217.x/24) can spoof 16777215 neighboring addresses (within your /8 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
103.202.217.x/24/3159105natblock
103.202.217.x/24/3059105natblock
103.202.217.x/24/2959105natblock
103.202.217.x/24/2859105yes
103.202.217.x/24/2759105yes
103.202.217.x/24/2659105yes
103.202.217.x/24/2559105yes
103.202.217.x/24/2459105yes
103.202.216.x/24/2359105yes
103.202.219.x/24/2223539yes
103.202.221.x/24/21134180yes
103.202.209.x/24/20UNROUTEDnatblock
103.202.201.x/24/19UNROUTEDnatblock
103.202.249.x/24/18UNROUTEDnatblock
103.202.153.x/24/17UNROUTEDnatblock
103.202.89.x/24/16UNROUTEDnatblock
103.203.217.x/24/1563561yes
103.200.217.x/24/1438001yes
103.206.217.x/24/1363735yes
103.194.217.x/24/12UNROUTEDnatblock
103.218.217.x/24/11134772yes
103.234.217.x/24/1038768yes
103.138.217.x/24/9138856yes
103.74.217.x/24/84851yes

Meaning of status in Received column:

yesPackets spoofed from adjacent netblock were received
yesPackets spoofed from adjacent netblock were received (but that netblock is within the source AS)
natblockSpoofed probe packets appear to be blocked by your local NAT or firewall rather than being rewritten with a public source address.

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).
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 addressDestinationReceived
2001:48d0:101:501::1592001:48d0:101:501::242no
2001:4978:1fb:6400::d22001:48d0:101:501::242no
2001:49aa:111:aa00::112001:48d0:101:501::242no
fd11:1111:1111::11112001:48d0:101:501::242no
2001:48d0:101:501::1592001:48d0:101:501::247no
2001:4978:1fb:6400::d22001:48d0:101:501::247no
2001:49aa:111:aa00::112001:48d0:101:501::247no
fd11:1111:1111::11112001:48d0:101:501::247no
2001:48d0:101:501::1592001:630:212:225:225:90ff:fe0c:45a6no
2001:4978:1fb:6400::d22001:630:212:225:225:90ff:fe0c:45a6no
2001:49aa:111:aa00::112001:630:212:225:225:90ff:fe0c:45a6no
fd11:1111:1111::11112001:630:212:225:225:90ff:fe0c:45a6no
2001:48d0:101:501::1592001:770:1c:7:225:90ff:fe0c:acb4no
2001:4978:1fb:6400::d22001:770:1c:7:225:90ff:fe0c:acb4no
2001:49aa:111:aa00::112001:770:1c:7:225:90ff:fe0c:acb4no
fd11:1111:1111::11112001:770:1c:7:225:90ff:fe0c:acb4no
2001:48d0:101:501::1592001:df0:4:800:21c:c0ff:feb2:ad5fno
2001:4978:1fb:6400::d22001:df0:4:800:21c:c0ff:feb2:ad5fno
2001:49aa:111:aa00::112001:df0:4:800:21c:c0ff:feb2:ad5fno
fd11:1111:1111::11112001:df0:4:800:21c:c0ff:feb2:ad5fno
IPv6 Adjacent Netblock Testing:
Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
2403:bd80:c1xx::/40/12059105yes
2403:bd80:c1xx::/40/11259105yes
2403:bd80:c1xx::/40/10459105yes
2403:bd80:c1xx::/40/9659105yes
2403:bd80:c1xx::/40/8859105yes
2403:bd80:c1xx::/40/8059105yes
2403:bd80:c1xx::/40/7259105yes
2403:bd80:c1xx::/40/6459105yes
2403:bd80:c1xx::/40/5659105yes
2403:bd80:c1xx::/40/4859105yes
2403:bd80:c1xx::/40/4059105no
2403:bd80:41xx::/40/3259105no
2403:bd00:c1xx::/40/24UNROUTEDno
2403:3d80:c1xx::/40/16UNROUTEDno

Meaning of status in Received column:

noPackets spoofed from adjacent netblock were not received, probably due to blocking
yesPackets 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.
Feedback:
We welcome questions and feedback to the Spoofer Information Mailing List and invite users to join the Spoofer Users Mailing List for discussion and announcements.
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