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Session Report

Summary:
Test run at: 2022-07-11 13:32:53 GMT
Client Prefix (v4): 200.3.170.x/24
Client AS (v4): 11815
IPv4 Probes: 60
Client Prefix (v6): 2001:13e8:xx::/40
Client AS (v6): 11815
IPv6 Probes: 56
Outbound spoofing summary (from the client to our server)
Source address type IPv4IPv6
Private - RFC1918 or ULA blockedblocked
Routable blockedblocked
Largest spoofable neighbor prefix length /31/64
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 (200.3.170.x/24) can spoof 1 neighboring addresses (within your /31 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
200.3.170.x/24/3111815yes
200.3.170.x/24/3011815no
200.3.170.x/24/2911815no
200.3.170.x/24/2811815no
200.3.170.x/24/2711815no
200.3.170.x/24/2611815no
200.3.170.x/24/2511815no
200.3.170.x/24/2411815no
200.3.171.x/24/2311815no
200.3.168.x/24/2211815no
200.3.174.x/24/2111815no
200.3.162.x/24/203816no
200.3.186.x/24/1927935no
200.3.138.x/24/18UNROUTEDno
200.3.234.x/24/17UNROUTEDno
200.3.42.x/24/167303no
200.2.170.x/24/1527775no
200.1.170.x/24/14UNROUTEDno
200.7.170.x/24/1327828no
200.11.170.x/24/128048no
200.19.170.x/24/111916no
200.35.170.x/24/1026617no
200.67.170.x/24/98151no
200.131.170.x/24/81916no

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)

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 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
2001:13e8:xx::/40/12011815yes
2001:13e8:xx::/40/11211815yes
2001:13e8:xx::/40/10411815yes
2001:13e8:xx::/40/9611815yes
2001:13e8:xx::/40/8811815yes
2001:13e8:xx::/40/8011815yes
2001:13e8:xx::/40/7211815yes
2001:13e8:xx::/40/6411815yes
2001:13e8:xx::/40/5611815no
2001:13e8:xx::/40/4811815no
2001:13e8:xx::/40/4011815no
2001:13e8:80xx::/40/3211815no
2001:1368:xx::/40/243551no
2001:93e8:xx::/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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