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Session Report

Summary:
Test run at: 2020-11-17 21:19:57 GMT
Client Prefix (v4): 200.123.233.x/24
Client AS (v4): 270288
IPv4 Probes: 75
Client Prefix (v6): 2804:69bc:80xx::/40
Client AS (v6): 270288
IPv6 Probes: 68
Outbound spoofing summary (from the client to our server)
Source address type IPv4IPv6
Private - RFC1918 or ULA rewrittenreceived
Routable rewrittenreceived
Largest spoofable neighbor prefix length none/16

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.

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


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
200.123.233.x/24/31270288rewritten
200.123.233.x/24/30270288rewritten
200.123.233.x/24/29270288rewritten
200.123.233.x/24/28270288rewritten
200.123.233.x/24/27270288rewritten
200.123.233.x/24/26270288rewritten
200.123.233.x/24/25270288rewritten
200.123.233.x/24/24270288rewritten
200.123.232.x/24/23270288rewritten
200.123.235.x/24/22270288rewritten
200.123.237.x/24/21270270rewritten
200.123.225.x/24/20270262rewritten
200.123.249.x/24/1952402rewritten
200.123.201.x/24/186762rewritten
200.123.169.x/24/1716814rewritten
200.123.105.x/24/1619037rewritten
200.122.233.x/24/1513489rewritten
200.121.233.x/24/146147rewritten
200.127.233.x/24/1310481rewritten
200.115.233.x/24/1227747rewritten
200.107.233.x/24/1127932rewritten
200.91.233.x/24/1018747rewritten
200.59.233.x/24/927751rewritten
200.251.233.x/24/84230rewritten

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::1592001:770:18:7:225:90ff:fe0c:acb4yes
2001:4978:1fb:6400::d22001:770:18:7:225:90ff:fe0c:acb4yes
2001:49aa:111:aa00::112001:770:18:7:225:90ff:fe0c:acb4yes
fd11:1111:1111::11112001:770:18:7:225:90ff: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
2804:69bc:80xx::/40/120270288yes
2804:69bc:80xx::/40/112270288yes
2804:69bc:80xx::/40/104270288yes
2804:69bc:80xx::/40/96270288yes
2804:69bc:80xx::/40/88270288yes
2804:69bc:80xx::/40/80270288yes
2804:69bc:80xx::/40/72270288yes
2804:69bc:80xx::/40/64270288yes
2804:69bc:80xx::/40/56270288yes
2804:69bc:80xx::/40/48270288yes
2804:69bc:80xx::/40/40270288yes
2804:69bc:xx::/40/32UNROUTEDyes
2804:693c:80xx::/40/24270257yes
2804:e9bc:80xx::/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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