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Session Report

Summary:
Test run at: 2020-08-25 16:45:56 GMT
Client Prefix (v4): 54.169.58.x/24
Client AS (v4): 16509 (AMAZON-02)
IPv4 Probes: 75
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 Adjacent Netblock Testing:

Your host (54.169.58.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
54.169.58.x/24/3116509rewritten
54.169.58.x/24/3016509rewritten
54.169.58.x/24/2916509rewritten
54.169.58.x/24/2816509rewritten
54.169.58.x/24/2716509rewritten
54.169.58.x/24/2616509rewritten
54.169.58.x/24/2516509rewritten
54.169.58.x/24/2416509rewritten
54.169.59.x/24/2316509rewritten
54.169.56.x/24/2216509rewritten
54.169.62.x/24/2116509rewritten
54.169.50.x/24/2016509rewritten
54.169.42.x/24/1916509rewritten
54.169.26.x/24/1816509rewritten
54.169.122.x/24/1716509rewritten
54.169.186.x/24/1616509rewritten
54.168.58.x/24/1516509rewritten
54.171.58.x/24/1416509rewritten
54.173.58.x/24/1314618rewritten
54.161.58.x/24/1214618rewritten
54.185.58.x/24/1116509rewritten
54.137.58.x/24/10UNROUTEDrewritten
54.233.58.x/24/9UNROUTEDrewritten
54.41.58.x/24/8UNROUTEDrewritten

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.
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