Logo

Session Report

Summary:
Test run at: 2021-04-22 20:42:42 GMT
Client Prefix (v4): 190.93.10.x/24
Client AS (v4): 27789
IPv4 Probes: 66
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 rewritten
Routable rewritten
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.

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 (190.93.10.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
190.93.10.x/24/3127789rewritten
190.93.10.x/24/3027789rewritten
190.93.10.x/24/2927789rewritten
190.93.10.x/24/2827789rewritten
190.93.10.x/24/2727789rewritten
190.93.10.x/24/2627789rewritten
190.93.10.x/24/2527789rewritten
190.93.10.x/24/2427789rewritten
190.93.11.x/24/2327789rewritten
190.93.8.x/24/2227789rewritten
190.93.14.x/24/2127789rewritten
190.93.2.x/24/2027789rewritten
190.93.26.x/24/1927789rewritten
190.93.42.x/24/1852347rewritten
190.93.74.x/24/1727789rewritten
190.93.138.x/24/1619429rewritten
190.92.10.x/24/1527884rewritten
190.95.10.x/24/1414117rewritten
190.89.10.x/24/13270346rewritten
190.85.10.x/24/1214080rewritten
190.77.10.x/24/118048rewritten
190.125.10.x/24/1026611rewritten
190.29.10.x/24/913489rewritten
190.221.10.x/24/819037rewritten

Meaning of status in Received column:

rewrittenThe source address of the probe packets we received differs from the spoofed address. It appears that an intermediate device is rewriting your packet headers.

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.
Last Modified