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Session Report

Summary:
Test run at: 2020-09-03 00:36:56 GMT
Client Prefix (v4): 185.166.253.x/24
Client AS (v4): 262287
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 (185.166.253.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
185.166.253.x/24/31262287natblock
185.166.253.x/24/30262287natblock
185.166.253.x/24/29262287natblock
185.166.253.x/24/28262287natblock
185.166.253.x/24/27262287natblock
185.166.253.x/24/26262287natblock
185.166.253.x/24/25262287natblock
185.166.253.x/24/24262287natblock
185.166.252.x/24/23207541natblock
185.166.255.x/24/2258254natblock
185.166.249.x/24/21198847natblock
185.166.245.x/24/2049222natblock
185.166.237.x/24/1935913natblock
185.166.221.x/24/186876natblock
185.166.189.x/24/179063natblock
185.166.125.x/24/16207068natblock
185.167.253.x/24/15UNROUTEDnatblock
185.164.253.x/24/14207141natblock
185.162.253.x/24/13UNROUTEDnatblock
185.174.253.x/24/1242366natblock
185.182.253.x/24/1120900natblock
185.134.253.x/24/1021060natblock
185.230.253.x/24/9205119natblock
185.38.253.x/24/812835natblock

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 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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