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Session Report

Summary:
Test run at: 2023-09-03 23:09:54 GMT
Client Prefix (v4): 169.150.220.x/24
Client AS (v4): 60068 (CDN77)
IPv4 Probes: 63
Client Prefix (v6): 2804:1790:83xx::/40
Client AS (v6): 53085
IPv6 Probes: 56
Outbound spoofing summary (from the client to our server)
Source address type IPv4IPv6
Private - RFC1918 or ULA blockedblocked
Routable blockedreceived
Largest spoofable neighbor prefix length none/24
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 (169.150.220.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
169.150.220.x/24/3160068natblock
169.150.220.x/24/3060068natblock
169.150.220.x/24/2960068natblock
169.150.220.x/24/2860068natblock
169.150.220.x/24/2760068natblock
169.150.220.x/24/2660068natblock
169.150.220.x/24/2560068natblock
169.150.220.x/24/2460068natblock
169.150.221.x/24/2360068natblock
169.150.222.x/24/2260068natblock
169.150.216.x/24/2160068natblock
169.150.212.x/24/20212238natblock
169.150.204.x/24/19212238natblock
169.150.252.x/24/1860068natblock
169.150.156.x/24/17398203natblock
169.150.92.x/24/1630257natblock
169.151.220.x/24/152386natblock
169.148.220.x/24/14UNROUTEDnatblock
169.146.220.x/24/1332895natblock
169.158.220.x/24/1210569natblock
169.134.220.x/24/11UNROUTEDnatblock
169.182.220.x/24/10UNROUTEDnatblock
169.214.220.x/24/9UNROUTEDnatblock
169.22.220.x/24/8UNROUTEDnatblock

Meaning of status in Received column:

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 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::242yes
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::247yes
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::1592001:610:510:115:192:42:115:98yes
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:45a6yes
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:acb4yes
2001:4978:1fb:6400::d22001:770:1c:7:225:90ff:fe0c:acb4yes
2001:49aa:111:aa00::112001:770:1c:7:225:90ff:fe0c:acb4yes
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
2804:1790:83xx::/40/12053085yes
2804:1790:83xx::/40/11253085yes
2804:1790:83xx::/40/10453085yes
2804:1790:83xx::/40/9653085yes
2804:1790:83xx::/40/8853085yes
2804:1790:83xx::/40/8053085yes
2804:1790:83xx::/40/7253085yes
2804:1790:83xx::/40/6453085yes
2804:1790:83xx::/40/5653085yes
2804:1790:83xx::/40/4853085yes
2804:1790:83xx::/40/4053085yes
2804:1790:3xx::/40/3253085yes
2804:1710:83xx::/40/24263120yes
2804:9790:83xx::/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
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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