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Session Report

Summary:
Test run at: 2022-04-22 19:24:21 GMT
Client Prefix (v4): 64.186.9.x/24
Client AS (v4): 396097 (SAIL-INET)
IPv4 Probes: 60
Client Prefix (v6): 2604:21c0:1xx::/40
Client AS (v6): 396097 (SAIL-INET)
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 /23/64
Spoof status key
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.
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 (64.186.9.x/24) can spoof 511 neighboring addresses (within your /23 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
64.186.9.x/24/31396097yes
64.186.9.x/24/30396097no
64.186.9.x/24/29396097no
64.186.9.x/24/28396097no
64.186.9.x/24/27396097no
64.186.9.x/24/26396097no
64.186.9.x/24/25396097no
64.186.9.x/24/24396097no
64.186.8.x/24/2354243yes
64.186.11.x/24/22UNROUTEDno
64.186.13.x/24/21399216no
64.186.1.x/24/20UNROUTEDno
64.186.25.x/24/1953766no
64.186.41.x/24/1826554no
64.186.73.x/24/1713638no
64.186.137.x/24/16UNROUTEDno
64.187.9.x/24/156539no
64.184.9.x/24/1411525no
64.190.9.x/24/13UNROUTEDno
64.178.9.x/24/122828no
64.170.9.x/24/117018no
64.154.9.x/24/103356no
64.250.9.x/24/918859no
64.58.9.x/24/814755no

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
yesPackets 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 1 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::1592001:610:510:115:192:42:115:98no
2001:4978:1fb:6400::d22001:610:510:115:192:42:115:98no
2001:49aa:111:aa00::112001:610:510:115:192:42:115:98no
fd11:1111:1111::11112001:610:510:115:192:42:115:98no
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
IPv6 Adjacent Netblock Testing:
Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
2604:21c0:1xx::/40/120396097yes
2604:21c0:1xx::/40/112396097yes
2604:21c0:1xx::/40/104396097yes
2604:21c0:1xx::/40/96396097yes
2604:21c0:1xx::/40/88396097yes
2604:21c0:1xx::/40/80396097yes
2604:21c0:1xx::/40/72396097yes
2604:21c0:1xx::/40/64396097yes
2604:21c0:1xx::/40/56396097no
2604:21c0:1xx::/40/48396097no
2604:21c0:1xx::/40/40396097no
2604:21c0:81xx::/40/32396097no
2604:2140:1xx::/40/24UNROUTEDno
2604:a1c0:1xx::/40/16395466no

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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