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Session Report

Summary:
Test run at: 2017-07-20 23:08:43 GMT
Client Prefix (v4): 156.67.138.x/24
Client AS (v4): 42652 (DELUNET)
IPv4 Probes: 117
Client Prefix (v6): 2a01:5c0:xx::/40
Client AS (v6): 42652 (DELUNET)
IPv6 Probes: 77
Outbound spoofing summary (from the client to our server)
Source address type IPv4IPv6
Private - RFC1918 or ULA rewrittenunknown
Routable rewrittenunknown
Largest spoofable neighbor prefix length nonenone
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 (156.67.138.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
156.67.138.x/24/3142652rewritten
156.67.138.x/24/3042652rewritten
156.67.138.x/24/2942652rewritten
156.67.138.x/24/2842652rewritten
156.67.138.x/24/2742652rewritten
156.67.138.x/24/2642652rewritten
156.67.138.x/24/2542652rewritten
156.67.138.x/24/2442652rewritten
156.67.139.x/24/2342652rewritten
156.67.136.x/24/2242652rewritten
156.67.142.x/24/2142652rewritten
156.67.130.x/24/2042652rewritten
156.67.154.x/24/1912693rewritten
156.67.170.x/24/1860294rewritten
156.67.202.x/24/17UNROUTEDrewritten
156.67.10.x/24/16UNROUTEDrewritten
156.66.138.x/24/15UNROUTEDrewritten
156.65.138.x/24/14UNROUTEDrewritten
156.71.138.x/24/13UNROUTEDrewritten
156.75.138.x/24/128103rewritten
156.83.138.x/24/111103rewritten
156.99.138.x/24/101998rewritten
156.3.138.x/24/92920rewritten
156.195.138.x/24/88452rewritten

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 unable to spoof routable, non-adjacent source addresses through even the first IP hop.
IPv6 probes:
Spoofed source addressDestinationReceived
2001:4978:1fb:6400::d22001:388:1:5001:21c:c0ff:fea2:4a3ano
2001:49aa:111:aa00::112001:388:1:5001:21c:c0ff:fea2:4a3ano
fd11:1111:1111::11112001:388:1:5001:21c:c0ff:fea2:4a3ano
2001:4978:1fb:6400::d22001:410:102:1::78no
2001:49aa:111:aa00::112001:410:102:1::78no
fd11:1111:1111::11112001:410:102:1::78no
2001:4978:1fb:6400::d22001:410:90ff::5no
2001:49aa:111:aa00::112001:410:90ff::5no
fd11:1111:1111::11112001:410:90ff::5no
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
2001:4978:1fb:6400::d22001:48d0:101:501::247no
2001:49aa:111:aa00::112001:48d0:101:501::247no
fd11:1111:1111::11112001:48d0:101:501::247no
2001:4978:1fb: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
2001:4978:1fb: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
2001:4978:1fb:6400::d22001:708:40:2001:21c:c0ff:fea2:4c5cno
2001:49aa:111:aa00::112001:708:40:2001:21c:c0ff:fea2:4c5cno
fd11:1111:1111::11112001:708:40:2001:21c:c0ff:fea2:4c5cno
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
IPv6 Adjacent Netblock Testing:
Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
2a01:5c0:xx::/40/12042652sendto
2a01:5c0:xx::/40/11242652sendto
2a01:5c0:xx::/40/10442652sendto
2a01:5c0:xx::/40/9642652sendto
2a01:5c0:xx::/40/8842652sendto
2a01:5c0:xx::/40/8042652sendto
2a01:5c0:xx::/40/7242652sendto
2a01:5c0:xx::/40/6442652sendto
2a01:5c0:xx::/40/5642652sendto
2a01:5c0:xx::/40/4842652sendto
2a01:5c0:xx::/40/4042652sendto
2a01:5c0:80xx::/40/3242652sendto
2a01:540:xx::/40/246828sendto
2a01:85c0:xx::/40/16UNROUTEDsendto

Meaning of status in Received column:

sendtoThe spoofer client was unable to send spoofed headers due to an operating system restriction.
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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