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Session Report

Summary:
Test run at: 2017-11-20 15:05:10 GMT
Client Prefix (v4): 116.202.139.x/24
Client AS (v4): 131222 (SISTEMA-AS-AP)
IPv4 Probes: 102
Client Prefix (v6): 2406:5600:xx::/40
Client AS (v6): 131222 (SISTEMA-AS-AP)
IPv6 Probes: 68
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 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 (116.202.139.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
116.202.139.x/24/31131222rewritten
116.202.139.x/24/30131222rewritten
116.202.139.x/24/29131222rewritten
116.202.139.x/24/28131222rewritten
116.202.139.x/24/27131222rewritten
116.202.139.x/24/26131222rewritten
116.202.139.x/24/25131222rewritten
116.202.139.x/24/24131222rewritten
116.202.138.x/24/23131222rewritten
116.202.137.x/24/22131222rewritten
116.202.143.x/24/21131222rewritten
116.202.131.x/24/20131222rewritten
116.202.155.x/24/19131222rewritten
116.202.171.x/24/18131222rewritten
116.202.203.x/24/17131222rewritten
116.202.11.x/24/16131222rewritten
116.203.139.x/24/15131222rewritten
116.200.139.x/24/144766rewritten
116.206.139.x/24/1358952rewritten
116.194.139.x/24/12UNROUTEDrewritten
116.218.139.x/24/1117964rewritten
116.234.139.x/24/104812rewritten
116.138.139.x/24/9UNROUTEDrewritten
116.74.139.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 unable to spoof routable, non-adjacent source addresses through even the first IP hop.
IPv6 probes:
Spoofed source addressDestinationReceived
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: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
2406:5600:xx::/40/120131222no
2406:5600:xx::/40/112131222no
2406:5600:xx::/40/104131222no
2406:5600:xx::/40/96131222no
2406:5600:xx::/40/88131222no
2406:5600:xx::/40/80131222no
2406:5600:xx::/40/72131222no
2406:5600:xx::/40/64131222no
2406:5600:xx::/40/56131222no
2406:5600:xx::/40/48131222no
2406:5600:xx::/40/40UNROUTEDno
2406:5600:80xx::/40/32UNROUTEDno
2406:5680:xx::/40/24UNROUTEDno
2406:d600:xx::/40/1655879no

Meaning of status in Received column:

noPackets spoofed from adjacent netblock were not received, probably due to blocking
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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