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Session Report

Summary:
Test run at: 2020-09-02 15:53:21 GMT
Client Prefix (v4): 196.52.84.x/24
Client AS (v4): 13213 (UK2NET-AS)
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 (196.52.84.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
196.52.84.x/24/3113213rewritten
196.52.84.x/24/3013213rewritten
196.52.84.x/24/2913213rewritten
196.52.84.x/24/2813213rewritten
196.52.84.x/24/2713213rewritten
196.52.84.x/24/2613213rewritten
196.52.84.x/24/2513213rewritten
196.52.84.x/24/2413213rewritten
196.52.85.x/24/2312025rewritten
196.52.86.x/24/22UNROUTEDrewritten
196.52.80.x/24/21UNROUTEDrewritten
196.52.92.x/24/20UNROUTEDrewritten
196.52.68.x/24/1935554rewritten
196.52.116.x/24/18133847rewritten
196.52.20.x/24/1718710rewritten
196.52.212.x/24/16UNROUTEDrewritten
196.53.84.x/24/1512025rewritten
196.54.84.x/24/1462217rewritten
196.48.84.x/24/1337518rewritten
196.60.84.x/24/12UNROUTEDrewritten
196.36.84.x/24/113741rewritten
196.20.84.x/24/1036947rewritten
196.116.84.x/24/936925rewritten
196.180.84.x/24/836974rewritten

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 1 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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