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Session Report

Summary:
Test run at: 2021-03-11 16:15:53 GMT
Client Prefix (v4): 103.156.184.x/24
Client AS (v4): 60614 (TsungYi-Yu)
IPv4 Probes: 69
Client Prefix (v6): 2406:8dc0:22xx::/40
Client AS (v6): 60614 (TsungYi-Yu)
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

Meaning of result status in column:

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


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
103.156.184.x/24/3160614no
103.156.184.x/24/3060614no
103.156.184.x/24/2960614no
103.156.184.x/24/2860614no
103.156.184.x/24/2760614no
103.156.184.x/24/2660614no
103.156.184.x/24/2560614no
103.156.184.x/24/2460614no
103.156.185.x/24/2360614no
103.156.186.x/24/22UNROUTEDno
103.156.188.x/24/21UNROUTEDno
103.156.176.x/24/20141217no
103.156.168.x/24/19133647no
103.156.152.x/24/18141215no
103.156.248.x/24/1758821no
103.156.56.x/24/16UNROUTEDno
103.157.184.x/24/1555342no
103.158.184.x/24/14UNROUTEDno
103.152.184.x/24/13140174no
103.148.184.x/24/12140223no
103.140.184.x/24/11138880no
103.188.184.x/24/10UNROUTEDno
103.220.184.x/24/9UNROUTEDno
103.28.184.x/24/8UNROUTEDno

Meaning of status in Received column:

noPackets spoofed from adjacent netblock were not received, probably due to blocking

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::1592001:48d0:101:501::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::1592001:770:1c: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::1592001:df0:4:800:21c:c0ff:feb2:ad5fno
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::/40/12060614yes
2406:8dc0:22xx::/40/11260614yes
2406:8dc0:22xx::/40/10460614yes
2406:8dc0:22xx::/40/9660614yes
2406:8dc0:22xx::/40/8860614yes
2406:8dc0:22xx::/40/8060614yes
2406:8dc0:22xx::/40/7260614yes
2406:8dc0:22xx::/40/6460614yes
2406:8dc0:22xx::/40/5660614no
2406:8dc0:22xx::/40/4860614no
2406:8dc0:22xx::/40/4060614no
2406:8dc0:a2xx::/40/32UNROUTEDno
2406:8d40:22xx::/40/24138225no
2406:dc0:22xx::/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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