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Session Report

Summary:
Test run at: 2020-01-04 15:44:40 GMT
Client Prefix (v4): 191.242.86.x/24
Client AS (v4): 262612
IPv4 Probes: 75
Client Prefix (v6): 2804:6e4:15xx::/40
Client AS (v6): 262612
IPv6 Probes: 72
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/64
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 (191.242.86.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
191.242.86.x/24/31262612rewritten
191.242.86.x/24/30262612rewritten
191.242.86.x/24/29262612rewritten
191.242.86.x/24/28262612rewritten
191.242.86.x/24/27262612rewritten
191.242.86.x/24/26262612rewritten
191.242.86.x/24/25262612rewritten
191.242.86.x/24/24262612rewritten
191.242.87.x/24/23262612rewritten
191.242.84.x/24/22262612rewritten
191.242.82.x/24/21262612rewritten
191.242.94.x/24/20262612rewritten
191.242.70.x/24/19263473rewritten
191.242.118.x/24/18262851rewritten
191.242.22.x/24/17263466rewritten
191.242.214.x/24/16263481rewritten
191.243.86.x/24/15UNROUTEDrewritten
191.240.86.x/24/1428202rewritten
191.246.86.x/24/1322085rewritten
191.250.86.x/24/1218881rewritten
191.226.86.x/24/1126615rewritten
191.210.86.x/24/1026599rewritten
191.178.86.x/24/928573rewritten
191.114.86.x/24/87418rewritten

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::1592001:40b0:7500:280::5458:517ano
2001:4978:1fb:6400::d22001:40b0:7500:280::5458:517ano
2001:49aa:111:aa00::112001:40b0:7500:280::5458:517ano
fd11:1111:1111::11112001:40b0:7500:280::5458:517ano
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::1592001:630:212:225:225:90ff: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::1592001:770:18:7:225:90ff:fe0c:acb4no
2001:4978:1fb:6400::d22001:770:18:7:225:90ff:fe0c:acb4no
2001:49aa:111:aa00::112001:770:18:7:225:90ff:fe0c:acb4no
fd11:1111:1111::11112001:770:18:7:225:90ff:fe0c:acb4no
2001:48d0:101:501::1592001:df0:4:800:21c:c0ff:feb2:ad5fno
2001:4978:1fb:6400::d22001:df0:4:800:21c:c0ff:feb2:ad5fno
2001:49aa:111:aa00::112001:df0:4:800:21c:c0ff:feb2:ad5fno
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
2804:6e4:15xx::/40/120262612yes
2804:6e4:15xx::/40/112262612yes
2804:6e4:15xx::/40/104262612yes
2804:6e4:15xx::/40/96262612yes
2804:6e4:15xx::/40/88262612yes
2804:6e4:15xx::/40/80262612yes
2804:6e4:15xx::/40/72262612yes
2804:6e4:15xx::/40/64262612yes
2804:6e4:15xx::/40/56262612no
2804:6e4:15xx::/40/48262612no
2804:6e4:15xx::/40/40262612no
2804:6e4:95xx::/40/32262612no
2804:664:15xx::/40/24UNROUTEDno
2804:86e4:15xx::/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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