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Session Report

Summary:
Test run at: 2022-06-19 09:03:42 GMT
Client Prefix (v4): 185.113.78.x/24
Client AS (v4): 204144 (COMFORT-AS)
IPv4 Probes: 60
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 unknown
Routable received
Largest spoofable neighbor prefix length /20
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 (185.113.78.x/24) can spoof 4095 neighboring addresses (within your /20 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
185.113.78.x/24/31204144sendto
185.113.78.x/24/30204144sendto
185.113.78.x/24/29204144sendto
185.113.78.x/24/28204144sendto
185.113.78.x/24/27204144sendto
185.113.78.x/24/26204144sendto
185.113.78.x/24/25204144sendto
185.113.78.x/24/24204144sendto
185.113.79.x/24/23204144sendto
185.113.76.x/24/22204144sendto
185.113.74.x/24/21204144sendto
185.113.70.x/24/2062163yes
185.113.94.x/24/19UNROUTEDsendto
185.113.110.x/24/1834300sendto
185.113.14.x/24/178681sendto
185.113.206.x/24/1635826sendto
185.112.78.x/24/15212988sendto
185.115.78.x/24/1458224sendto
185.117.78.x/24/1357124sendto
185.121.78.x/24/1225160sendto
185.97.78.x/24/11207710sendto
185.81.78.x/24/10201153sendto
185.49.78.x/24/929316sendto
185.241.78.x/24/841960sendto

Meaning of status in Received column:

yesPackets spoofed from adjacent netblock were received
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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