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Session Report

Summary:
Test run at: 2017-08-11 05:19:26 GMT
Client Prefix (v4): 140.186.117.x/24
Client AS (v4): 11232 (MIDCO-NET)
IPv4 Probes: 120
Client Prefix (v6): 2001:48f8:30xx::/40
Client AS (v6): 11232 (MIDCO-NET)
IPv6 Probes: 79
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/64
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 (140.186.117.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
140.186.117.x/24/3111232rewritten
140.186.117.x/24/3011232rewritten
140.186.117.x/24/2911232rewritten
140.186.117.x/24/2811232rewritten
140.186.117.x/24/2711232rewritten
140.186.117.x/24/2611232rewritten
140.186.117.x/24/2511232rewritten
140.186.117.x/24/2411232rewritten
140.186.116.x/24/2311232rewritten
140.186.119.x/24/2211232rewritten
140.186.113.x/24/2111232rewritten
140.186.125.x/24/2011232rewritten
140.186.101.x/24/1911232rewritten
140.186.85.x/24/1811232rewritten
140.186.53.x/24/1711232rewritten
140.186.245.x/24/1611232rewritten
140.187.117.x/24/151452rewritten
140.184.117.x/24/148111rewritten
140.190.117.x/24/1314828rewritten
140.178.117.x/24/12768rewritten
140.170.117.x/24/11UNROUTEDrewritten
140.154.117.x/24/101580rewritten
140.250.117.x/24/94134rewritten
140.58.117.x/24/8UNROUTEDrewritten

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 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::d22001:410:90ff::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::d22001:708:40:2001:21c: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
2001:48f8:30xx::/40/12011232yes
2001:48f8:30xx::/40/11211232yes
2001:48f8:30xx::/40/10411232yes
2001:48f8:30xx::/40/9611232yes
2001:48f8:30xx::/40/8811232yes
2001:48f8:30xx::/40/8011232yes
2001:48f8:30xx::/40/7211232yes
2001:48f8:30xx::/40/6411232yes
2001:48f8:30xx::/40/5611232no
2001:48f8:30xx::/40/4811232no
2001:48f8:30xx::/40/4011232no
2001:48f8:b0xx::/40/3211232no
2001:4878:30xx::/40/24UNROUTEDno
2001:c8f8:30xx::/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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