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Session Report

Summary:
Test run at: 2020-06-21 19:54:11 GMT
Client Prefix (v4): 217.11.208.x/24
Client AS (v4): 15576 (NTS)
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 Adjacent Netblock Testing:

Your host (217.11.208.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
217.11.208.x/24/3115576natblock
217.11.208.x/24/3015576natblock
217.11.208.x/24/2915576natblock
217.11.208.x/24/2815576natblock
217.11.208.x/24/2715576natblock
217.11.208.x/24/2615576natblock
217.11.208.x/24/2515576natblock
217.11.208.x/24/2415576natblock
217.11.209.x/24/2315576natblock
217.11.210.x/24/2215576natblock
217.11.212.x/24/2115576natblock
217.11.216.x/24/2015576natblock
217.11.192.x/24/1915613natblock
217.11.240.x/24/1821430natblock
217.11.144.x/24/1721263natblock
217.11.80.x/24/163302natblock
217.10.208.x/24/1512302natblock
217.9.208.x/24/1457084natblock
217.15.208.x/24/1315589natblock
217.3.208.x/24/123320natblock
217.27.208.x/24/1144302natblock
217.43.208.x/24/102856natblock
217.75.208.x/24/947232natblock
217.139.208.x/24/820928natblock

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 able to spoof routable, non-adjacent source addresses through the first 2 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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