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Session Report

Summary:
Test run at: 2022-12-17 11:15:01 GMT
Client Prefix (v4): 185.193.127.x/24
Client AS (v4): 39287 (abstract)
IPv4 Probes: 60
Client Prefix (v6): 2a0a:3840:13xx::/40
Client AS (v6): 39287 (abstract)
IPv6 Probes: 52
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 /22/64
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 (185.193.127.x/24) can spoof 1023 neighboring addresses (within your /22 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
185.193.127.x/24/3139287yes
185.193.127.x/24/3039287yes
185.193.127.x/24/2939287yes
185.193.127.x/24/2839287yes
185.193.127.x/24/2739287yes
185.193.127.x/24/2639287yes
185.193.127.x/24/2539287yes
185.193.127.x/24/2439287yes
185.193.126.x/24/2339287yes
185.193.125.x/24/2239287yes
185.193.123.x/24/2142903no
185.193.119.x/24/20202228no
185.193.111.x/24/19UNROUTEDno
185.193.95.x/24/1852157no
185.193.63.x/24/17202635no
185.193.255.x/24/1650316no
185.192.127.x/24/15200514no
185.195.127.x/24/14204239no
185.197.127.x/24/13UNROUTEDno
185.201.127.x/24/1212996no
185.209.127.x/24/1124940no
185.225.127.x/24/10UNROUTEDno
185.129.127.x/24/950247no
185.65.127.x/24/8UNROUTEDno

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::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: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
2a0a:3840:13xx::/40/12039287yes
2a0a:3840:13xx::/40/11239287yes
2a0a:3840:13xx::/40/10439287yes
2a0a:3840:13xx::/40/9639287yes
2a0a:3840:13xx::/40/8839287yes
2a0a:3840:13xx::/40/8039287yes
2a0a:3840:13xx::/40/7239287yes
2a0a:3840:13xx::/40/6439287yes
2a0a:3840:13xx::/40/5639287no
2a0a:3840:13xx::/40/4839287no
2a0a:3840:13xx::/40/4039287no
2a0a:3840:93xx::/40/3239287no
2a0a:38c0:13xx::/40/24UNROUTEDno
2a0a:b840:13xx::/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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