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Session Report

Summary:
Test run at: 2022-05-18 19:43:06 GMT
Client Prefix (v4): 138.122.142.x/24
Client AS (v4): 61678
IPv4 Probes: 60
Client Prefix (v6): 2804:1cd4:11xx::/40
Client AS (v6): 61678
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 /23/32
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 (138.122.142.x/24) can spoof 511 neighboring addresses (within your /23 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
138.122.142.x/24/3161678yes
138.122.142.x/24/3061678yes
138.122.142.x/24/2961678yes
138.122.142.x/24/2861678yes
138.122.142.x/24/2761678yes
138.122.142.x/24/2661678yes
138.122.142.x/24/2561678yes
138.122.142.x/24/2461678yes
138.122.143.x/24/2361678yes
138.122.140.x/24/2261678no
138.122.138.x/24/21264329no
138.122.134.x/24/20264478no
138.122.158.x/24/19263786no
138.122.174.x/24/18262518no
138.122.206.x/24/17264326no
138.122.14.x/24/16264322no
138.123.142.x/24/1546887no
138.120.142.x/24/14UNROUTEDno
138.126.142.x/24/13UNROUTEDno
138.114.142.x/24/12UNROUTEDno
138.106.142.x/24/11202116no
138.90.142.x/24/10UNROUTEDno
138.58.142.x/24/9UNROUTEDno
138.250.142.x/24/8786no

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 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
2804:1cd4:11xx::/40/12061678yes
2804:1cd4:11xx::/40/11261678yes
2804:1cd4:11xx::/40/10461678yes
2804:1cd4:11xx::/40/9661678yes
2804:1cd4:11xx::/40/8861678yes
2804:1cd4:11xx::/40/8061678yes
2804:1cd4:11xx::/40/7261678yes
2804:1cd4:11xx::/40/6461678yes
2804:1cd4:11xx::/40/5661678yes
2804:1cd4:11xx::/40/4861678yes
2804:1cd4:11xx::/40/4061678yes
2804:1cd4:91xx::/40/3261678yes
2804:1c54:11xx::/40/2461650no
2804:9cd4:11xx::/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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