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Session Report

Summary:
Test run at: 2022-05-30 16:12:13 GMT
Client Prefix (v4): 167.59.60.x/24
Client AS (v4): 6057
IPv4 Probes: 60
Client Prefix (v6): 2800:a4:exx::/40
Client AS (v6): 6057
IPv6 Probes: 56
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 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.

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 (167.59.60.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
167.59.60.x/24/316057rewritten
167.59.60.x/24/306057rewritten
167.59.60.x/24/296057rewritten
167.59.60.x/24/286057rewritten
167.59.60.x/24/276057rewritten
167.59.60.x/24/266057rewritten
167.59.60.x/24/256057rewritten
167.59.60.x/24/246057rewritten
167.59.61.x/24/236057rewritten
167.59.62.x/24/226057rewritten
167.59.56.x/24/216057rewritten
167.59.52.x/24/206057rewritten
167.59.44.x/24/196057rewritten
167.59.28.x/24/186057rewritten
167.59.124.x/24/176057rewritten
167.59.188.x/24/166057rewritten
167.58.60.x/24/156057rewritten
167.57.60.x/24/146057rewritten
167.63.60.x/24/136057rewritten
167.51.60.x/24/12UNROUTEDrewritten
167.43.60.x/24/11UNROUTEDrewritten
167.27.60.x/24/10UNROUTEDrewritten
167.123.60.x/24/9UNROUTEDrewritten
167.187.60.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 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
2800:a4:exx::/40/1206057yes
2800:a4:exx::/40/1126057yes
2800:a4:exx::/40/1046057yes
2800:a4:exx::/40/966057yes
2800:a4:exx::/40/886057yes
2800:a4:exx::/40/806057yes
2800:a4:exx::/40/726057yes
2800:a4:exx::/40/646057yes
2800:a4:exx::/40/566057yes
2800:a4:exx::/40/486057no
2800:a4:exx::/40/406057no
2800:a4:8exx::/40/326057no
2800:24:exx::/40/2414187no
2800:80a4:exx::/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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