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Session Report

Summary:
Test run at: 2017-06-24 05:18:44 GMT
Client Prefix (v4): 85.26.81.x/24
Client AS (v4): 12392 (ASBRUTELE)
IPv4 Probes: 118
Client Prefix (v6): 2a02:2788:9xx::/40
Client AS (v6): 12392 (ASBRUTELE)
IPv6 Probes: 78
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 (85.26.81.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
85.26.81.x/24/3112392rewritten
85.26.81.x/24/3012392rewritten
85.26.81.x/24/2912392natblock
85.26.81.x/24/2812392natblock
85.26.81.x/24/2712392natblock
85.26.81.x/24/2612392natblock
85.26.81.x/24/2512392natblock
85.26.81.x/24/2412392natblock
85.26.80.x/24/2312392natblock
85.26.83.x/24/2212392natblock
85.26.85.x/24/2112392natblock
85.26.89.x/24/2012392natblock
85.26.65.x/24/1912392natblock
85.26.113.x/24/1812392natblock
85.26.17.x/24/1712392natblock
85.26.209.x/24/1631213natblock
85.27.81.x/24/1512392natblock
85.24.81.x/24/1415516natblock
85.30.81.x/24/1316333natblock
85.18.81.x/24/1212874natblock
85.10.81.x/24/1147377natblock
85.58.81.x/24/1012479natblock
85.90.81.x/24/91126natblock
85.154.81.x/24/828885natblock

Meaning of status in Received column:

natblockSpoofed probe packets appear to be blocked by your local NAT or firewall rather than being rewritten with a public source address.
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 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
2001:4978:1fb: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::d22001:630:212:225:225:90ff: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
2a02:2788:9xx::/40/12012392no
2a02:2788:9xx::/40/11212392no
2a02:2788:9xx::/40/10412392no
2a02:2788:9xx::/40/9612392no
2a02:2788:9xx::/40/8812392no
2a02:2788:9xx::/40/8012392no
2a02:2788:9xx::/40/7212392no
2a02:2788:9xx::/40/6412392no
2a02:2788:9xx::/40/5612392no
2a02:2788:9xx::/40/4812392no
2a02:2788:9xx::/40/4012392no
2a02:2788:89xx::/40/3212392no
2a02:2708:9xx::/40/24UNROUTEDno
2a02:a788:9xx::/40/16UNROUTEDno

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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