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Session Report

Summary:
Test run at: 2022-09-14 09:57:10 GMT
Client Prefix (v4): 196.10.98.x/24
Client AS (v4): 37599 (TERACO)
IPv4 Probes: 60
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 blocked
Routable blocked
Largest spoofable neighbor prefix length none
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 (196.10.98.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
196.10.98.x/24/3137599sendto
196.10.98.x/24/3037599sendto
196.10.98.x/24/2937599sendto
196.10.98.x/24/2837599sendto
196.10.98.x/24/2737599sendto
196.10.98.x/24/2637599natblock
196.10.98.x/24/2537599sendto
196.10.98.x/24/2437599sendto
196.10.99.x/24/2337599sendto
196.10.96.x/24/22UNROUTEDsendto
196.10.102.x/24/21UNROUTEDsendto
196.10.106.x/24/20UNROUTEDsendto
196.10.114.x/24/1937028sendto
196.10.66.x/24/18UNROUTEDsendto
196.10.34.x/24/177020sendto
196.10.226.x/24/16UNROUTEDsendto
196.11.98.x/24/152018sendto
196.8.98.x/24/14UNROUTEDsendto
196.14.98.x/24/133741sendto
196.2.98.x/24/12UNROUTEDsendto
196.26.98.x/24/113741sendto
196.42.98.x/24/1036982sendto
196.74.98.x/24/936903sendto
196.138.98.x/24/836935sendto

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.
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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