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Session Report

Summary:
Test run at: 2022-01-13 13:03:33 GMT
Client Prefix (v4): 186.225.16.x/24
Client AS (v4): 262760
IPv4 Probes: 63
Client Prefix (v6): 2804:414:10xx::/40
Client AS (v6): 262760
IPv6 Probes: 52
Outbound spoofing summary (from the client to our server)
Source address type IPv4IPv6
Private - RFC1918 or ULA blockedreceived
Routable receivedreceived
Largest spoofable neighbor prefix length /8/16

Meaning of result status in column:

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 (186.225.16.x/24) can spoof 16777215 neighboring addresses (within your /8 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
186.225.16.x/24/31262760natblock
186.225.16.x/24/30262760yes
186.225.16.x/24/29262760yes
186.225.16.x/24/28262760yes
186.225.16.x/24/27262760yes
186.225.16.x/24/26262760yes
186.225.16.x/24/25262760yes
186.225.16.x/24/24262760yes
186.225.17.x/24/23262760yes
186.225.18.x/24/22262760yes
186.225.20.x/24/21262760yes
186.225.24.x/24/20262760yes
186.225.0.x/24/1928343yes
186.225.48.x/24/1828368yes
186.225.80.x/24/1753173yes
186.225.144.x/24/16262761yes
186.224.16.x/24/15262755yes
186.227.16.x/24/1453182yes
186.229.16.x/24/1326615yes
186.233.16.x/24/12262777yes
186.241.16.x/24/117738yes
186.193.16.x/24/1053078yes
186.161.16.x/24/921575yes
186.97.16.x/24/827831yes

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)
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 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::1592001:48d0:101:501::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::1592001:630:212:225:225:90ff:fe0c:45a6yes
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: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:acb4yes
IPv6 Adjacent Netblock Testing:
Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
2804:414:10xx::/40/120262760yes
2804:414:10xx::/40/112262760yes
2804:414:10xx::/40/104262760yes
2804:414:10xx::/40/96262760yes
2804:414:10xx::/40/88262760yes
2804:414:10xx::/40/80262760yes
2804:414:10xx::/40/72262760yes
2804:414:10xx::/40/64262760yes
2804:414:10xx::/40/56262760yes
2804:414:10xx::/40/48262760yes
2804:414:10xx::/40/40262760yes
2804:414:90xx::/40/32262760yes
2804:494:10xx::/40/2452987yes
2804:8414:10xx::/40/16272238yes

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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