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Session Report

Summary:
Test run at: 2019-12-02 23:00:19 GMT
Client Prefix (v4): 185.10.235.x/24
Client AS (v4): 39647 (REDHOSTING-AS)
IPv4 Probes: 75
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 rewritten
Routable received
Largest spoofable neighbor prefix length /9
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 (185.10.235.x/24) can spoof 8388607 neighboring addresses (within your /9 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
185.10.235.x/24/3139647sendto
185.10.235.x/24/3039647yes
185.10.235.x/24/2939647sendto
185.10.235.x/24/2839647yes
185.10.235.x/24/2739647yes
185.10.235.x/24/2639647sendto
185.10.235.x/24/2539647sendto
185.10.235.x/24/2439647sendto
185.10.234.x/24/2339647yes
185.10.233.x/24/2239647natblock
185.10.239.x/24/2156973yes
185.10.227.x/24/20199562sendto
185.10.251.x/24/19199312yes
185.10.203.x/24/1812703sendto
185.10.171.x/24/1712541sendto
185.10.107.x/24/16UNROUTEDnatblock
185.11.235.x/24/15201565yes
185.8.235.x/24/14206026yes
185.14.235.x/24/13199490yes
185.2.235.x/24/1225019sendto
185.26.235.x/24/1156503sendto
185.42.235.x/24/10UNROUTEDsendto
185.74.235.x/24/959395yes
185.138.235.x/24/8UNROUTEDsendto

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.
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.
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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