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Session Report

Summary:
Test run at: 2021-01-20 12:08:03 GMT
Client Prefix (v4): 104.238.160.x/24
Client AS (v4): 20473 (AS-CHOOPA)
IPv4 Probes: 69
Client Prefix (v6): 2602:feda:cxx::/40
Client AS (v6): 212279 (edisonlee55-Network)
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 (104.238.160.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
104.238.160.x/24/3120473natblock
104.238.160.x/24/3020473natblock
104.238.160.x/24/2920473natblock
104.238.160.x/24/2820473natblock
104.238.160.x/24/2720473natblock
104.238.160.x/24/2620473natblock
104.238.160.x/24/2520473natblock
104.238.160.x/24/2420473natblock
104.238.161.x/24/2320473natblock
104.238.162.x/24/2220473natblock
104.238.164.x/24/2120473natblock
104.238.168.x/24/2020473natblock
104.238.176.x/24/1920473natblock
104.238.128.x/24/1820473natblock
104.238.224.x/24/1713760natblock
104.238.32.x/24/1662874natblock
104.239.160.x/24/1527357natblock
104.236.160.x/24/1414061natblock
104.234.160.x/24/1330407natblock
104.230.160.x/24/1210796natblock
104.254.160.x/24/1114265natblock
104.206.160.x/24/1062904natblock
104.174.160.x/24/920001natblock
104.110.160.x/24/813367natblock

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::1592001:48d0:101:501::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::1592001:770:18:7:225:90ff:fe0c:acb4no
2001:4978:1fb:6400::d22001:770:18:7:225:90ff:fe0c:acb4no
2001:49aa:111:aa00::112001:770:18:7:225:90ff:fe0c:acb4no
fd11:1111:1111::11112001:770:18:7:225:90ff: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
2602:feda:cxx::/40/120212279yes
2602:feda:cxx::/40/112212279yes
2602:feda:cxx::/40/104212279yes
2602:feda:cxx::/40/96212279yes
2602:feda:cxx::/40/88212279yes
2602:feda:cxx::/40/80212279yes
2602:feda:cxx::/40/72212279yes
2602:feda:cxx::/40/64212279yes
2602:feda:cxx::/40/56212279no
2602:feda:cxx::/40/48212279no
2602:feda:cxx::/40/40UNROUTEDno
2602:feda:8cxx::/40/32UNROUTEDno
2602:fe5a:cxx::/40/24UNROUTEDno
2602:7eda:cxx::/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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