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Session Report

Summary:
Test run at: 2021-05-17 16:59:45 GMT
Client Prefix (v4): 59.126.197.x/24
Client AS (v4): 3462 (HINET)
IPv4 Probes: 66
Client Prefix (v6): 2406:8dc0:22xx::/40
Client AS (v6): 209557 (STEVEYI-ASN)
IPv6 Probes: 56
Outbound spoofing summary (from the client to our server)
Source address type IPv4IPv6
Private - RFC1918 or ULA rewrittenreceived
Routable receivedreceived
Largest spoofable neighbor prefix length none/16
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.

Warnings:

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 (59.126.197.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
59.126.197.x/24/313462rewritten
59.126.197.x/24/303462rewritten
59.126.197.x/24/293462rewritten
59.126.197.x/24/283462rewritten
59.126.197.x/24/273462rewritten
59.126.197.x/24/263462rewritten
59.126.197.x/24/253462rewritten
59.126.197.x/24/243462rewritten
59.126.196.x/24/233462rewritten
59.126.199.x/24/223462rewritten
59.126.193.x/24/213462rewritten
59.126.205.x/24/203462rewritten
59.126.213.x/24/193462rewritten
59.126.229.x/24/183462rewritten
59.126.133.x/24/173462rewritten
59.126.69.x/24/163462rewritten
59.127.197.x/24/153462rewritten
59.124.197.x/24/143462rewritten
59.122.197.x/24/133462rewritten
59.118.197.x/24/123462rewritten
59.110.197.x/24/1137963rewritten
59.94.197.x/24/109829rewritten
59.62.197.x/24/94134rewritten
59.254.197.x/24/8UNROUTEDrewritten

Meaning of status in Received column:

rewrittenThe source address of the probe packets we received differs from the spoofed address. It appears that an intermediate device is rewriting your packet headers.

IPv4 Outbound Filtering Depth:

The tracefilter test found your host able to spoof routable, non-adjacent source addresses through the first 10 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::242yes
2001:49aa:111:aa00::112001:48d0:101:501::242yes
fd11:1111:1111::11112001:48d0:101:501::242yes
2001:48d0:101:501::1592001:48d0:101:501::247yes
2001:4978:1fb:6400::d22001:48d0:101:501::247yes
2001:49aa:111:aa00::112001:48d0:101:501::247yes
fd11:1111:1111::11112001:48d0:101:501::247yes
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:acb4yes
2001:48d0:101:501::1592001:df0:4:800:21c:c0ff:feb2:ad5fyes
2001:4978:1fb:6400::d22001:df0:4:800:21c:c0ff:feb2:ad5fno
2001:49aa:111:aa00::112001:df0:4:800:21c:c0ff:feb2:ad5fno
fd11:1111:1111::11112001:df0:4:800:21c:c0ff:feb2:ad5fno
IPv6 Adjacent Netblock Testing:
Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
2406:8dc0:22xx::/40/120209557yes
2406:8dc0:22xx::/40/112209557yes
2406:8dc0:22xx::/40/104209557yes
2406:8dc0:22xx::/40/96209557yes
2406:8dc0:22xx::/40/88209557yes
2406:8dc0:22xx::/40/80209557yes
2406:8dc0:22xx::/40/72209557yes
2406:8dc0:22xx::/40/64209557yes
2406:8dc0:22xx::/40/56209557yes
2406:8dc0:22xx::/40/48209557yes
2406:8dc0:22xx::/40/4060614yes
2406:8dc0:a2xx::/40/32UNROUTEDyes
2406:8d40:22xx::/40/24138225yes
2406:dc0:22xx::/40/16UNROUTEDyes

Meaning of status in Received column:

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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