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Session Report

Summary:
Test run at: 2023-03-11 12:12:47 GMT
Client Prefix (v4): 186.226.173.x/24
Client AS (v4): 53180
IPv4 Probes: 57
Client Prefix (v6): 2804:2ab8:11xx::/40
Client AS (v6): 53180
IPv6 Probes: 52
Outbound spoofing summary (from the client to our server)
Source address type IPv4IPv6
Private - RFC1918 or ULA rewrittenreceived
Routable receivedreceived
Largest spoofable neighbor prefix length none/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.

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


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
186.226.173.x/24/3153180no
186.226.173.x/24/3053180no
186.226.173.x/24/2953180rewritten
186.226.173.x/24/2853180rewritten
186.226.173.x/24/2753180rewritten
186.226.173.x/24/2653180rewritten
186.226.173.x/24/2553180rewritten
186.226.173.x/24/2453180rewritten
186.226.172.x/24/2353180rewritten
186.226.175.x/24/2253180rewritten
186.226.169.x/24/2153180rewritten
186.226.165.x/24/2053180rewritten
186.226.189.x/24/19262999rewritten
186.226.141.x/24/1828294rewritten
186.226.237.x/24/1728333rewritten
186.226.45.x/24/1628208rewritten
186.227.173.x/24/15270623rewritten
186.224.173.x/24/1428580rewritten
186.230.173.x/24/1326615rewritten
186.234.173.x/24/127162rewritten
186.242.173.x/24/117738rewritten
186.194.173.x/24/10270766rewritten
186.162.173.x/24/921575rewritten
186.98.173.x/24/83816rewritten

Meaning of status in Received column:

noPackets spoofed from adjacent netblock were not received, probably due to blocking
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 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::1592001:40b0:7500:280::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::1592001:610:510:115:192:42:115:98yes
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: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
2804:2ab8:11xx::/40/12053180yes
2804:2ab8:11xx::/40/11253180yes
2804:2ab8:11xx::/40/10453180yes
2804:2ab8:11xx::/40/9653180yes
2804:2ab8:11xx::/40/8853180yes
2804:2ab8:11xx::/40/8053180yes
2804:2ab8:11xx::/40/7253180yes
2804:2ab8:11xx::/40/6453180yes
2804:2ab8:11xx::/40/5653180yes
2804:2ab8:11xx::/40/4853180yes
2804:2ab8:11xx::/40/4053180yes
2804:2ab8:91xx::/40/3253180yes
2804:2a38:11xx::/40/24UNROUTEDyes
2804:aab8:11xx::/40/16UNROUTEDyes

Meaning of status in Received column:

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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