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Session Report

Summary:
Test run at: 2022-02-24 17:45:07 GMT
Client Prefix (v4): 81.82.144.x/24
Client AS (v4): 6848 (TELENET-AS)
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 (81.82.144.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
81.82.144.x/24/316848sendto
81.82.144.x/24/306848sendto
81.82.144.x/24/296848sendto
81.82.144.x/24/286848sendto
81.82.144.x/24/276848sendto
81.82.144.x/24/266848sendto
81.82.144.x/24/256848sendto
81.82.144.x/24/246848sendto
81.82.145.x/24/236848sendto
81.82.146.x/24/226848sendto
81.82.148.x/24/216848sendto
81.82.152.x/24/206848sendto
81.82.128.x/24/196848sendto
81.82.176.x/24/186848sendto
81.82.208.x/24/176848sendto
81.82.16.x/24/166848sendto
81.83.144.x/24/156848sendto
81.80.144.x/24/143215sendto
81.86.144.x/24/139105sendto
81.90.144.x/24/1225184sendto
81.66.144.x/24/1115557sendto
81.114.144.x/24/103269sendto
81.18.144.x/24/924626sendto
81.210.144.x/24/83209natblock

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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