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Session Report

Summary:
Test run at: 2023-10-25 14:37:22 GMT
Client Prefix (v4): 80.115.148.x/24
Client AS (v4): 33915 (TNF-AS)
IPv4 Probes: 69
Client Prefix (v6): 2001:1c02:30xx::/40
Client AS (v6): 33915 (TNF-AS)
IPv6 Probes: 60
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 none/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 (80.115.148.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
80.115.148.x/24/3133915natblock
80.115.148.x/24/3033915natblock
80.115.148.x/24/2933915natblock
80.115.148.x/24/2833915natblock
80.115.148.x/24/2733915natblock
80.115.148.x/24/2633915natblock
80.115.148.x/24/2533915natblock
80.115.148.x/24/2433915natblock
80.115.149.x/24/2333915natblock
80.115.150.x/24/2233915natblock
80.115.144.x/24/2133915natblock
80.115.156.x/24/2033915natblock
80.115.132.x/24/1933915natblock
80.115.180.x/24/1833915natblock
80.115.212.x/24/17UNROUTEDnatblock
80.115.20.x/24/1633915natblock
80.114.148.x/24/1533915natblock
80.113.148.x/24/1433915natblock
80.119.148.x/24/1315557natblock
80.123.148.x/24/128447natblock
80.99.148.x/24/1121334natblock
80.83.148.x/24/1024867natblock
80.51.148.x/24/95617natblock
80.243.148.x/24/849332natblock

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 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::1592001:40b0:7500:280::5458:517ano
2001:4978:1fb:6400::d22001:40b0:7500:280::5458:517ano
2001:49aa:111:aa00::112001:40b0:7500:280::5458:517ano
fd11:1111:1111::11112001:40b0:7500:280::5458:517ano
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
2001:1c02:30xx::/40/12033915yes
2001:1c02:30xx::/40/11233915yes
2001:1c02:30xx::/40/10433915yes
2001:1c02:30xx::/40/9633915yes
2001:1c02:30xx::/40/8833915yes
2001:1c02:30xx::/40/8033915yes
2001:1c02:30xx::/40/7233915yes
2001:1c02:30xx::/40/6433915yes
2001:1c02:30xx::/40/5633915no
2001:1c02:30xx::/40/4833915no
2001:1c02:30xx::/40/4033915no
2001:1c02:b0xx::/40/3233915no
2001:1c82:30xx::/40/2433915no
2001:9c02:30xx::/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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