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Session Report

Summary:
Test run at: 2017-10-25 14:10:52 GMT
Client Prefix (v4): 188.166.11.x/24
Client AS (v4): 14061 (DIGITALOCEAN-ASN)
IPv4 Probes: 105
Client Prefix (v6): 2a03:b0c0:xx::/40
Client AS (v6): 14061 (DIGITALOCEAN-ASN)
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 (188.166.11.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
188.166.11.x/24/3114061natblock
188.166.11.x/24/3014061natblock
188.166.11.x/24/2914061natblock
188.166.11.x/24/2814061natblock
188.166.11.x/24/2714061natblock
188.166.11.x/24/2614061natblock
188.166.11.x/24/2514061natblock
188.166.11.x/24/2414061natblock
188.166.10.x/24/2314061natblock
188.166.9.x/24/2214061natblock
188.166.15.x/24/2114061natblock
188.166.3.x/24/2014061natblock
188.166.27.x/24/1914061natblock
188.166.43.x/24/1814061natblock
188.166.75.x/24/1714061natblock
188.166.139.x/24/1614061natblock
188.167.11.x/24/156830natblock
188.164.11.x/24/1439356natblock
188.162.11.x/24/1347395natblock
188.174.11.x/24/128767natblock
188.182.11.x/24/113292natblock
188.134.11.x/24/1041733natblock
188.230.11.x/24/925229natblock
188.38.11.x/24/815897natblock

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.

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
2a03:b0c0:xx::/40/120200130no
2a03:b0c0:xx::/40/112200130no
2a03:b0c0:xx::/40/104200130no
2a03:b0c0:xx::/40/96200130no
2a03:b0c0:xx::/40/88200130no
2a03:b0c0:xx::/40/80200130no
2a03:b0c0:xx::/40/72200130no
2a03:b0c0:xx::/40/64200130no
2a03:b0c0:xx::/40/5614061no
2a03:b0c0:xx::/40/4814061no
2a03:b0c0:xx::/40/4012552no
2a03:b0c0:80xx::/40/3212552no
2a03:b040:xx::/40/2460981no
2a03:30c0:xx::/40/1612552no

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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