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Session Report

Summary:
Test run at: 2017-08-15 06:34:53 GMT
Client Prefix (v4): 80.100.158.x/24
Client AS (v4): 3265 (XS4ALL-NL)
IPv4 Probes: 120
Client Prefix (v6): 2001:984:8exx::/40
Client AS (v6): 3265 (XS4ALL-NL)
IPv6 Probes: 79
Outbound spoofing summary (from the client to our server)
Source address type IPv4IPv6
Private - RFC1918 or ULA blockedblocked
Routable blockedblocked
Largest spoofable neighbor prefix length none/48
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.
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 (80.100.158.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
80.100.158.x/24/313265natblock
80.100.158.x/24/303265natblock
80.100.158.x/24/293265natblock
80.100.158.x/24/283265natblock
80.100.158.x/24/273265natblock
80.100.158.x/24/263265natblock
80.100.158.x/24/253265natblock
80.100.158.x/24/243265natblock
80.100.159.x/24/233265natblock
80.100.156.x/24/223265natblock
80.100.154.x/24/213265natblock
80.100.150.x/24/203265natblock
80.100.142.x/24/193265natblock
80.100.190.x/24/183265natblock
80.100.222.x/24/173265natblock
80.100.30.x/24/163265natblock
80.101.158.x/24/153265natblock
80.102.158.x/24/1412479natblock
80.96.158.x/24/1321294natblock
80.108.158.x/24/126830natblock
80.116.158.x/24/113269natblock
80.68.158.x/24/1033982natblock
80.36.158.x/24/93352natblock
80.228.158.x/24/89145natblock

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 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::d22001:708:40:2001:21c: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
2001:984:8exx::/40/1203265yes
2001:984:8exx::/40/1123265yes
2001:984:8exx::/40/1043265yes
2001:984:8exx::/40/963265yes
2001:984:8exx::/40/883265yes
2001:984:8exx::/40/803265yes
2001:984:8exx::/40/723265yes
2001:984:8exx::/40/643265yes
2001:984:8exx::/40/563265yes
2001:984:8exx::/40/483265yes
2001:984:8exx::/40/403265no
2001:984:exx::/40/323265no
2001:904:8exx::/40/24UNROUTEDno
2001:8984:8exx::/40/161221no

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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