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Session Report

Summary:
Test run at: 2022-08-03 04:27:21 GMT
Client Prefix (v4): 111.246.36.x/24
Client AS (v4): 3462 (HINET)
IPv4 Probes: 60
Client Prefix (v6): 2001:b011:a4xx::/40
Client AS (v6): 3462 (HINET)
IPv6 Probes: 52
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 (111.246.36.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
111.246.36.x/24/313462natblock
111.246.36.x/24/303462natblock
111.246.36.x/24/293462natblock
111.246.36.x/24/283462natblock
111.246.36.x/24/273462natblock
111.246.36.x/24/263462natblock
111.246.36.x/24/253462natblock
111.246.36.x/24/243462natblock
111.246.37.x/24/233462natblock
111.246.38.x/24/223462natblock
111.246.32.x/24/213462natblock
111.246.44.x/24/203462natblock
111.246.52.x/24/193462natblock
111.246.4.x/24/183462natblock
111.246.100.x/24/173462natblock
111.246.164.x/24/163462natblock
111.247.36.x/24/153462natblock
111.244.36.x/24/143462natblock
111.242.36.x/24/133462natblock
111.254.36.x/24/123462natblock
111.230.36.x/24/1145090natblock
111.214.36.x/24/109812natblock
111.182.36.x/24/94134natblock
111.118.36.x/24/89762natblock

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::1592001:48d0:101:501::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:b011:a4xx::/40/1203462yes
2001:b011:a4xx::/40/1123462yes
2001:b011:a4xx::/40/1043462yes
2001:b011:a4xx::/40/963462yes
2001:b011:a4xx::/40/883462yes
2001:b011:a4xx::/40/803462yes
2001:b011:a4xx::/40/723462yes
2001:b011:a4xx::/40/643462yes
2001:b011:a4xx::/40/563462no
2001:b011:a4xx::/40/483462no
2001:b011:a4xx::/40/403462no
2001:b011:24xx::/40/323462no
2001:b091:a4xx::/40/243462no
2001:3011:a4xx::/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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