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Session Report

Summary:
Test run at: 2022-03-14 12:32:50 GMT
Client Prefix (v4): 83.138.55.x/24
Client AS (v4): 40994 (Alwyzon)
IPv4 Probes: 60
Client Prefix (v6): 2a0d:f302:1xx::/40
Client AS (v6): 40994 (Alwyzon)
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 nonenone
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 (83.138.55.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
83.138.55.x/24/3140994no
83.138.55.x/24/3040994no
83.138.55.x/24/2940994no
83.138.55.x/24/2840994no
83.138.55.x/24/2740994no
83.138.55.x/24/2640994no
83.138.55.x/24/2540994no
83.138.55.x/24/2440994no
83.138.54.x/24/2349505no
83.138.53.x/24/2263473no
83.138.51.x/24/2149505no
83.138.63.x/24/20UNROUTEDno
83.138.39.x/24/19UNROUTEDno
83.138.23.x/24/18UNROUTEDno
83.138.119.x/24/1734895no
83.138.183.x/24/1615395no
83.139.55.x/24/1549800no
83.136.55.x/24/1461049no
83.142.55.x/24/1343624no
83.130.55.x/24/1212400no
83.154.55.x/24/1112322no
83.170.55.x/24/1029259no
83.202.55.x/24/93215no
83.10.55.x/24/85617no

Meaning of status in Received column:

noPackets spoofed from adjacent netblock were not received, probably due to blocking

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
2a0d:f302:1xx::/40/12040994no
2a0d:f302:1xx::/40/11240994no
2a0d:f302:1xx::/40/10440994no
2a0d:f302:1xx::/40/9640994no
2a0d:f302:1xx::/40/8840994no
2a0d:f302:1xx::/40/8040994no
2a0d:f302:1xx::/40/7240994no
2a0d:f302:1xx::/40/6440994no
2a0d:f302:1xx::/40/5640994no
2a0d:f302:1xx::/40/4840994no
2a0d:f302:1xx::/40/4040994no
2a0d:f302:81xx::/40/3240994no
2a0d:f382:1xx::/40/24UNROUTEDno
2a0d:7302:1xx::/40/16UNROUTEDno

Meaning of status in Received column:

noPackets spoofed from adjacent netblock were not received, probably due to blocking
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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