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Session Report

Summary:
Test run at: 2021-03-05 13:08:01 GMT
Client Prefix (v4): 168.196.59.x/24
Client AS (v4): 262908
IPv4 Probes: 69
Client Prefix (v6): 2804:3c8:cxx::/40
Client AS (v6): 262908
IPv6 Probes: 60
Outbound spoofing summary (from the client to our server)
Source address type IPv4IPv6
Private - RFC1918 or ULA rewrittenblocked
Routable rewrittenblocked
Largest spoofable neighbor prefix length none/32

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


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
168.196.59.x/24/31262908rewritten
168.196.59.x/24/30262908rewritten
168.196.59.x/24/29262908rewritten
168.196.59.x/24/28262908rewritten
168.196.59.x/24/27262908rewritten
168.196.59.x/24/26262908rewritten
168.196.59.x/24/25262908rewritten
168.196.59.x/24/24262908rewritten
168.196.58.x/24/23262908rewritten
168.196.57.x/24/22262908rewritten
168.196.63.x/24/21265464rewritten
168.196.51.x/24/20265445rewritten
168.196.43.x/24/19265442rewritten
168.196.27.x/24/18264758rewritten
168.196.123.x/24/17265460rewritten
168.196.187.x/24/1610778rewritten
168.197.59.x/24/15264025rewritten
168.198.59.x/24/14UNROUTEDrewritten
168.192.59.x/24/13UNROUTEDrewritten
168.204.59.x/24/12UNROUTEDrewritten
168.212.59.x/24/1110430rewritten
168.228.59.x/24/10264708rewritten
168.132.59.x/24/918191rewritten
168.68.59.x/24/84152rewritten

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 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::1592001:770:1c: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
2804:3c8:cxx::/40/120262908yes
2804:3c8:cxx::/40/112262908yes
2804:3c8:cxx::/40/104262908yes
2804:3c8:cxx::/40/96262908yes
2804:3c8:cxx::/40/88262908yes
2804:3c8:cxx::/40/80262908yes
2804:3c8:cxx::/40/72262908yes
2804:3c8:cxx::/40/64262908yes
2804:3c8:cxx::/40/56262908yes
2804:3c8:cxx::/40/48262908yes
2804:3c8:cxx::/40/40262908yes
2804:3c8:8cxx::/40/32262908yes
2804:348:cxx::/40/2428133no
2804:83c8: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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