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Session Report

Summary:
Test run at: 2021-03-24 14:04:16 GMT
Client Prefix (v4): 187.109.17.x/24
Client AS (v4): 53112
IPv4 Probes: 66
Client Prefix (v6): 2804:d0c:xx::/40
Client AS (v6): 53112
IPv6 Probes: 56
Outbound spoofing summary (from the client to our server)
Source address type IPv4IPv6
Private - RFC1918 or ULA blockedreceived
Routable blockedreceived
Largest spoofable neighbor prefix length none/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.
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 (187.109.17.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
187.109.17.x/24/3153112natblock
187.109.17.x/24/3053112natblock
187.109.17.x/24/2953112natblock
187.109.17.x/24/2853112natblock
187.109.17.x/24/2753112natblock
187.109.17.x/24/2653112natblock
187.109.17.x/24/2553112natblock
187.109.17.x/24/2453112natblock
187.109.16.x/24/2353112natblock
187.109.19.x/24/2253112natblock
187.109.21.x/24/2153112natblock
187.109.25.x/24/2053112natblock
187.109.1.x/24/1953110natblock
187.109.49.x/24/1853113natblock
187.109.81.x/24/1753139natblock
187.109.145.x/24/1628668natblock
187.108.17.x/24/1553169natblock
187.111.17.x/24/1453120natblock
187.105.17.x/24/1328573natblock
187.101.17.x/24/1227699natblock
187.125.17.x/24/117738natblock
187.77.17.x/24/107738natblock
187.45.17.x/24/928580natblock
187.237.17.x/24/88151natblock

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 able to spoof routable, non-adjacent source addresses through the first 1 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:acb4no
2001:48d0:101:501::1592001:df0:4:800:21c:c0ff:feb2:ad5fyes
2001:4978:1fb:6400::d22001:df0:4:800:21c:c0ff:feb2:ad5fyes
2001:49aa:111:aa00::112001:df0:4:800:21c:c0ff:feb2:ad5fyes
fd11:1111:1111::11112001:df0:4:800:21c:c0ff:feb2:ad5fno
IPv6 Adjacent Netblock Testing:
Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
2804:d0c:xx::/40/12053112yes
2804:d0c:xx::/40/11253112yes
2804:d0c:xx::/40/10453112yes
2804:d0c:xx::/40/9653112yes
2804:d0c:xx::/40/8853112yes
2804:d0c:xx::/40/8053112yes
2804:d0c:xx::/40/7253112yes
2804:d0c:xx::/40/6453112yes
2804:d0c:xx::/40/5653112yes
2804:d0c:xx::/40/4853112yes
2804:d0c:xx::/40/4053112yes
2804:d0c:80xx::/40/3253112yes
2804:d8c:xx::/40/2452638yes
2804:8d0c:xx::/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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