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Session Report

Summary:
Test run at: 2021-12-08 00:57:16 GMT
Client Prefix (v4): 189.72.179.x/24
Client AS (v4): 8167
IPv4 Probes: 66
Client Prefix (v6): 2804:d59:94xx::/40
Client AS (v6): 8167
IPv6 Probes: 56
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/56
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 (189.72.179.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
189.72.179.x/24/318167natblock
189.72.179.x/24/308167natblock
189.72.179.x/24/298167natblock
189.72.179.x/24/288167natblock
189.72.179.x/24/278167natblock
189.72.179.x/24/268167natblock
189.72.179.x/24/258167natblock
189.72.179.x/24/248167natblock
189.72.178.x/24/238167natblock
189.72.177.x/24/228167natblock
189.72.183.x/24/218167natblock
189.72.187.x/24/208167natblock
189.72.163.x/24/198167natblock
189.72.147.x/24/188167natblock
189.72.243.x/24/178167natblock
189.72.51.x/24/168167natblock
189.73.179.x/24/158167natblock
189.74.179.x/24/148167natblock
189.76.179.x/24/1328359natblock
189.64.179.x/24/1226615natblock
189.88.179.x/24/114230natblock
189.104.179.x/24/107738natblock
189.8.179.x/24/952950natblock
189.200.179.x/24/813591natblock

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
2001:48d0:101:501::1592001:48d0:101:501::242no
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
2001:48d0:101:501::1592001:48d0:101:501::247no
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
2001:48d0:101:501::1592001:610:510:115:192:42:115:98no
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
2001:48d0:101:501::1592001:630:212:225:225:90ff:fe0c:45a6no
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
2001:48d0:101:501::1592001:770:1c:7:225:90ff:fe0c:acb4no
2001:4978:1fb:6400::d22001:770:1c:7:225:90ff:fe0c:acb4no
2001:49aa:111:aa00::112001:770:1c:7:225:90ff:fe0c:acb4no
fd11:1111:1111::11112001:770:1c:7:225:90ff:fe0c:acb4no
IPv6 Adjacent Netblock Testing:
Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
2804:d59:94xx::/40/1208167yes
2804:d59:94xx::/40/1128167yes
2804:d59:94xx::/40/1048167yes
2804:d59:94xx::/40/968167yes
2804:d59:94xx::/40/888167yes
2804:d59:94xx::/40/808167yes
2804:d59:94xx::/40/728167yes
2804:d59:94xx::/40/648167yes
2804:d59:94xx::/40/568167yes
2804:d59:94xx::/40/488167no
2804:d59:94xx::/40/408167no
2804:d59:14xx::/40/328167no
2804:dd9:94xx::/40/24UNROUTEDno
2804:8d59:94xx::/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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