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Session Report

Summary:
Test run at: 2020-02-28 17:43:16 GMT
Client Prefix (v4): 198.108.6.x/24
Client AS (v4): 237 (MERIT-AS-14)
IPv4 Probes: 75
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 (198.108.6.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
198.108.6.x/24/31237natblock
198.108.6.x/24/30237natblock
198.108.6.x/24/29237natblock
198.108.6.x/24/28237natblock
198.108.6.x/24/27237natblock
198.108.6.x/24/26237natblock
198.108.6.x/24/25237natblock
198.108.6.x/24/24237natblock
198.108.7.x/24/23237natblock
198.108.4.x/24/22237natblock
198.108.2.x/24/21237natblock
198.108.14.x/24/2036375natblock
198.108.22.x/24/19237natblock
198.108.38.x/24/18237natblock
198.108.70.x/24/17237natblock
198.108.134.x/24/16237natblock
198.109.6.x/24/15237natblock
198.110.6.x/24/14237natblock
198.104.6.x/24/132914natblock
198.100.6.x/24/1217195natblock
198.124.6.x/24/11291natblock
198.76.6.x/24/103356natblock
198.44.6.x/24/954290natblock
198.236.6.x/24/836416natblock

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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