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Session Report

Summary:
Test run at: 2019-11-29 21:36:34 GMT
Client Prefix (v4): 198.40.44.x/24
Client AS (v4): 53641 (TOMALESBAYLAN)
IPv4 Probes: 75
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 rewritten
Routable received
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 (198.40.44.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
198.40.44.x/24/3153641rewritten
198.40.44.x/24/3053641rewritten
198.40.44.x/24/2953641rewritten
198.40.44.x/24/2853641rewritten
198.40.44.x/24/2753641rewritten
198.40.44.x/24/2653641rewritten
198.40.44.x/24/2553641rewritten
198.40.44.x/24/2453641rewritten
198.40.45.x/24/2353641rewritten
198.40.46.x/24/2253641rewritten
198.40.40.x/24/2126854rewritten
198.40.36.x/24/20UNROUTEDrewritten
198.40.60.x/24/1954288rewritten
198.40.12.x/24/18UNROUTEDrewritten
198.40.108.x/24/17UNROUTEDrewritten
198.40.172.x/24/16UNROUTEDrewritten
198.41.44.x/24/1552441rewritten
198.42.44.x/24/14UNROUTEDrewritten
198.44.44.x/24/1354290rewritten
198.32.44.x/24/1232361rewritten
198.56.44.x/24/11UNROUTEDrewritten
198.8.44.x/24/10UNROUTEDrewritten
198.104.44.x/24/92914rewritten
198.168.44.x/24/811032rewritten

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 able to spoof routable, non-adjacent source addresses through the first 10 IP hop(s).
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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