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Session Report

Summary:
Test run at: 2020-08-23 03:55:16 GMT
Client Prefix (v4): 173.231.63.x/24
Client AS (v4): 18450 (WEBNX)
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 (173.231.63.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
173.231.63.x/24/3118450natblock
173.231.63.x/24/3018450natblock
173.231.63.x/24/2918450natblock
173.231.63.x/24/2818450natblock
173.231.63.x/24/2718450natblock
173.231.63.x/24/2618450natblock
173.231.63.x/24/2518450natblock
173.231.63.x/24/2418450natblock
173.231.62.x/24/2318450natblock
173.231.61.x/24/2218450natblock
173.231.59.x/24/2118450natblock
173.231.55.x/24/2018450natblock
173.231.47.x/24/1918450natblock
173.231.31.x/24/1818450natblock
173.231.127.x/24/1722652natblock
173.231.191.x/24/1629791natblock
173.230.63.x/24/15UNROUTEDnatblock
173.229.63.x/24/1410430natblock
173.227.63.x/24/133549natblock
173.239.63.x/24/1236057natblock
173.247.63.x/24/1118705natblock
173.199.63.x/24/1016815natblock
173.167.63.x/24/97922natblock
173.103.63.x/24/81239natblock

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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