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Session Report

Summary:
Test run at: 2021-06-14 18:17:39 GMT
Client Prefix (v4): 139.180.170.x/24
Client AS (v4): 20473 (AS-CHOOPA)
IPv4 Probes: 66
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 unknown
Routable unknown
Largest spoofable neighbor prefix length none

Meaning of result status in column:

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 (139.180.170.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
139.180.170.x/24/3120473natblock
139.180.170.x/24/3020473natblock
139.180.170.x/24/2920473natblock
139.180.170.x/24/2820473natblock
139.180.170.x/24/2720473natblock
139.180.170.x/24/2620473natblock
139.180.170.x/24/2520473natblock
139.180.170.x/24/2420473natblock
139.180.171.x/24/2320473natblock
139.180.168.x/24/2220473natblock
139.180.174.x/24/2120473natblock
139.180.162.x/24/2020473natblock
139.180.186.x/24/1920473natblock
139.180.138.x/24/1820473natblock
139.180.234.x/24/17396052natblock
139.180.42.x/24/1632505natblock
139.181.170.x/24/15UNROUTEDnatblock
139.182.170.x/24/142152natblock
139.176.170.x/24/13UNROUTEDnatblock
139.188.170.x/24/12UNROUTEDnatblock
139.164.170.x/24/1129695natblock
139.148.170.x/24/1023771natblock
139.244.170.x/24/9UNROUTEDnatblock
139.52.170.x/24/85707natblock

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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