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Session Report

Summary:
Test run at: 2021-04-20 17:02:14 GMT
Client Prefix (v4): 185.223.213.x/24
Client AS (v4): 47251 (VLBGIT-AS)
IPv4 Probes: 66
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 (185.223.213.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
185.223.213.x/24/3147251natblock
185.223.213.x/24/3047251natblock
185.223.213.x/24/2947251natblock
185.223.213.x/24/2847251natblock
185.223.213.x/24/2747251natblock
185.223.213.x/24/2647251natblock
185.223.213.x/24/2547251natblock
185.223.213.x/24/2447251natblock
185.223.212.x/24/23UNROUTEDnatblock
185.223.215.x/24/22UNROUTEDnatblock
185.223.209.x/24/2139825natblock
185.223.221.x/24/20201942natblock
185.223.197.x/24/19205260natblock
185.223.245.x/24/1841110natblock
185.223.149.x/24/1744407natblock
185.223.85.x/24/168455natblock
185.222.213.x/24/15UNROUTEDnatblock
185.221.213.x/24/1462082natblock
185.219.213.x/24/13201699natblock
185.215.213.x/24/12208580natblock
185.207.213.x/24/11UNROUTEDnatblock
185.255.213.x/24/10200475natblock
185.159.213.x/24/9202599natblock
185.95.213.x/24/8200797natblock

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.

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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