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Session Report

Summary:
Test run at: 2024-09-09 06:36:56 GMT
Client Prefix (v4): 186.123.28.x/24
Client AS (v4): 11664
IPv4 Probes: 69
Client Prefix (v6): 2600:480a:50xx::/40
Client AS (v6): 6128 (CABLE-NET-1)
IPv6 Probes: 68
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/56
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 (186.123.28.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
186.123.28.x/24/3111664natblock
186.123.28.x/24/3011664natblock
186.123.28.x/24/2911664natblock
186.123.28.x/24/2811664natblock
186.123.28.x/24/2711664natblock
186.123.28.x/24/2611664natblock
186.123.28.x/24/2511664natblock
186.123.28.x/24/2411664natblock
186.123.29.x/24/2311664natblock
186.123.30.x/24/2211664natblock
186.123.24.x/24/2119037natblock
186.123.20.x/24/2011664natblock
186.123.12.x/24/1911664natblock
186.123.60.x/24/1811664natblock
186.123.92.x/24/1711664natblock
186.123.156.x/24/1611664natblock
186.122.28.x/24/1511664natblock
186.121.28.x/24/143816natblock
186.127.28.x/24/137303natblock
186.115.28.x/24/123816natblock
186.107.28.x/24/117418natblock
186.91.28.x/24/108048natblock
186.59.28.x/24/9UNROUTEDnatblock
186.251.28.x/24/8262380natblock

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::1592001:40b0:7500:280::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::1592001:630:212:225:225:90ff: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::1592001:638:902:2000:ba27:ebff:fe86:2c51no
2001:4978:1fb:6400::d22001:638:902:2000:ba27:ebff:fe86:2c51no
2001:49aa:111:aa00::112001:638:902:2000:ba27:ebff:fe86:2c51no
fd11:1111:1111::11112001:638:902:2000:ba27:ebff:fe86:2c51no
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
2001:48d0:101:501::1592607:8400:2880:4::80df:9d0dno
2001:4978:1fb:6400::d22607:8400:2880:4::80df:9d0dno
2001:49aa:111:aa00::112607:8400:2880:4::80df:9d0dno
fd11:1111:1111::11112607:8400:2880:4::80df:9d0dno
2001:48d0:101:501::1592607:f278:2:13:da3a:ddff:fe30:ce14no
2001:4978:1fb:6400::d22607:f278:2:13:da3a:ddff:fe30:ce14no
2001:49aa:111:aa00::112607:f278:2:13:da3a:ddff:fe30:ce14no
fd11:1111:1111::11112607:f278:2:13:da3a:ddff:fe30:ce14no
IPv6 Adjacent Netblock Testing:
Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
2600:480a:50xx::/40/1206128yes
2600:480a:50xx::/40/1126128yes
2600:480a:50xx::/40/1046128yes
2600:480a:50xx::/40/966128yes
2600:480a:50xx::/40/886128yes
2600:480a:50xx::/40/806128yes
2600:480a:50xx::/40/726128yes
2600:480a:50xx::/40/646128yes
2600:480a:50xx::/40/566128yes
2600:480a:50xx::/40/486128no
2600:480a:50xx::/40/406128no
2600:480a:d0xx::/40/326128no
2600:488a:50xx::/40/24UNROUTEDno
2600:c80a:50xx::/40/167018no

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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