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Session Report

Summary:
Test run at: 2018-09-03 03:05:11 GMT
Client Prefix (v4): 191.250.188.x/24
Client AS (v4): 18881
IPv4 Probes: 124
Client Prefix (v6): 2804:7f4:33xx::/40
Client AS (v6): 18881
IPv6 Probes: 82
Outbound spoofing summary (from the client to our server)
Source address type IPv4IPv6
Private - RFC1918 or ULA unknownunknown
Routable unknownunknown
Largest spoofable neighbor prefix length nonenone
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 (191.250.188.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
191.250.188.x/24/3118881sendto
191.250.188.x/24/3018881sendto
191.250.188.x/24/2918881sendto
191.250.188.x/24/2818881sendto
191.250.188.x/24/2718881sendto
191.250.188.x/24/2618881sendto
191.250.188.x/24/2518881sendto
191.250.188.x/24/2418881sendto
191.250.189.x/24/2318881sendto
191.250.190.x/24/2218881sendto
191.250.184.x/24/2118881sendto
191.250.180.x/24/2018881sendto
191.250.172.x/24/1918881sendto
191.250.156.x/24/1818881sendto
191.250.252.x/24/1718881sendto
191.250.60.x/24/1618881sendto
191.251.188.x/24/1518881sendto
191.248.188.x/24/1418881sendto
191.254.188.x/24/1327699sendto
191.242.188.x/24/12263151natblock
191.234.188.x/24/118075sendto
191.218.188.x/24/108167sendto
191.186.188.x/24/9UNROUTEDsendto
191.122.188.x/24/826615sendto

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.
sendtoThe spoofer client was unable to send spoofed headers due to an operating system restriction.

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:ec4:7aff:fea8:71a82001:48d0:101:501::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
IPv6 Adjacent Netblock Testing:
Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
2804:7f4:33xx::/40/12018881sendto
2804:7f4:33xx::/40/11218881sendto
2804:7f4:33xx::/40/10418881sendto
2804:7f4:33xx::/40/9618881sendto
2804:7f4:33xx::/40/8818881sendto
2804:7f4:33xx::/40/8018881sendto
2804:7f4:33xx::/40/7218881sendto
2804:7f4:33xx::/40/6418881sendto
2804:7f4:33xx::/40/5618881sendto
2804:7f4:33xx::/40/4818881sendto
2804:7f4:33xx::/40/4018881sendto
2804:7f4:b3xx::/40/3218881sendto
2804:774:33xx::/40/24UNROUTEDsendto
2804:87f4:33xx::/40/16UNROUTEDsendto

Meaning of status in Received column:

sendtoThe spoofer client was unable to send spoofed headers due to an operating system restriction.
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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