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Session Report

Summary:
Test run at: 2024-08-10 00:36:10 GMT
Client Prefix (v4): 140.211.4.x/24
Client AS (v4): 3701 (NERONET)
IPv4 Probes: 69
Client Prefix (v6): 2605:bc80:9xx::/40
Client AS (v6): 3701 (NERONET)
IPv6 Probes: 68
Outbound spoofing summary (from the client to our server)
Source address type IPv4IPv6
Private - RFC1918 or ULA receivedreceived
Routable receivedreceived
Largest spoofable neighbor prefix length /8/16
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 (140.211.4.x/24) can spoof 16777215 neighboring addresses (within your /8 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
140.211.4.x/24/313701yes
140.211.4.x/24/303701yes
140.211.4.x/24/293701yes
140.211.4.x/24/283701yes
140.211.4.x/24/273701yes
140.211.4.x/24/263701yes
140.211.4.x/24/253701yes
140.211.4.x/24/243701yes
140.211.5.x/24/233701yes
140.211.6.x/24/223701yes
140.211.0.x/24/213701yes
140.211.12.x/24/203701yes
140.211.20.x/24/193701yes
140.211.36.x/24/183701yes
140.211.68.x/24/173701yes
140.211.132.x/24/163701yes
140.210.4.x/24/154808yes
140.209.4.x/24/1432907yes
140.215.4.x/24/13688yes
140.219.4.x/24/1222284yes
140.195.4.x/24/11749yes
140.243.4.x/24/104134yes
140.147.4.x/24/92532yes
140.83.4.x/24/8UNROUTEDyes

Meaning of status in Received column:

yesPackets spoofed from adjacent netblock were received
yesPackets spoofed from adjacent netblock were received (but that netblock is within the source AS)

IPv4 Outbound Filtering Depth:

The tracefilter test found your host able to spoof routable, non-adjacent source addresses through the first 10 IP hop(s).
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::1592001:200:e000:2:225:90ff:fe0c:4684yes
2001:4978:1fb:6400::d22001:200:e000:2:225:90ff:fe0c:4684yes
2001:49aa:111:aa00::112001:200:e000:2:225:90ff:fe0c:4684yes
fd11:1111:1111::11112001:200:e000:2:225:90ff:fe0c:4684yes
2001:48d0:101:501::1592001:40b0:7500:280::5458:517ayes
2001:4978:1fb:6400::d22001:40b0:7500:280::5458:517ayes
2001:49aa:111:aa00::112001:40b0:7500:280::5458:517ayes
fd11:1111:1111::11112001:40b0:7500:280::5458:517ayes
2001:48d0:101:501::1592001:48d0:101:501::242yes
2001:4978:1fb:6400::d22001:48d0:101:501::242yes
2001:49aa:111:aa00::112001:48d0:101:501::242yes
fd11:1111:1111::11112001:48d0:101:501::242yes
2001:48d0:101:501::1592001:48d0:101:501::247yes
2001:4978:1fb:6400::d22001:48d0:101:501::247yes
2001:49aa:111:aa00::112001:48d0:101:501::247yes
fd11:1111:1111::11112001:48d0:101:501::247yes
2001:48d0:101:501::1592001:638:902:2000:ba27:ebff:fe86:2c51yes
2001:4978:1fb:6400::d22001:638:902:2000:ba27:ebff:fe86:2c51no
2001:49aa:111:aa00::112001:638:902:2000:ba27:ebff:fe86:2c51no
fd11:1111:1111::11112001:638:902:2000:ba27:ebff:fe86:2c51no
2001:48d0:101:501::1592001:770:1c:7:225:90ff:fe0c:acb4yes
2001:4978:1fb:6400::d22001:770:1c:7:225:90ff:fe0c:acb4yes
2001:49aa:111:aa00::112001:770:1c:7:225:90ff:fe0c:acb4yes
fd11:1111:1111::11112001:770:1c:7:225:90ff:fe0c:acb4no
2001:48d0:101:501::1592607:8400:2880:4::80df:9d0dyes
2001:4978:1fb:6400::d22607:8400:2880:4::80df:9d0dyes
2001:49aa:111:aa00::112607:8400:2880:4::80df:9d0dyes
fd11:1111:1111::11112607:8400:2880:4::80df:9d0dno
2001:48d0:101:501::1592607:f278:2:13:da3a:ddff:fe30:ce14yes
2001:4978:1fb:6400::d22607:f278:2:13:da3a:ddff:fe30:ce14yes
2001:49aa:111:aa00::112607:f278:2:13:da3a:ddff:fe30:ce14yes
fd11:1111:1111::11112607:f278:2:13:da3a:ddff:fe30:ce14yes
IPv6 Adjacent Netblock Testing:
Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
2605:bc80:9xx::/40/1203701yes
2605:bc80:9xx::/40/1123701yes
2605:bc80:9xx::/40/1043701yes
2605:bc80:9xx::/40/963701yes
2605:bc80:9xx::/40/883701yes
2605:bc80:9xx::/40/803701yes
2605:bc80:9xx::/40/723701yes
2605:bc80:9xx::/40/643701yes
2605:bc80:9xx::/40/563701yes
2605:bc80:9xx::/40/483701yes
2605:bc80:9xx::/40/403701yes
2605:bc80:89xx::/40/323701yes
2605:bc00:9xx::/40/2446309yes
2605:3c80:9xx::/40/16UNROUTEDyes

Meaning of status in Received column:

yesPackets spoofed from adjacent netblock were received
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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