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Session Report

Summary:
Test run at: 2020-10-23 04:02:34 GMT
Client Prefix (v4): 104.237.193.x/24
Client AS (v4): 20278 (NEXEON)
IPv4 Probes: 75
Client Prefix (v6): 2602:ffc8:xx::/40
Client AS (v6): 20278 (NEXEON)
IPv6 Probes: 68
Outbound spoofing summary (from the client to our server)
Source address type IPv4IPv6
Private - RFC1918 or ULA blockedblocked
Routable blockedblocked
Largest spoofable neighbor prefix length nonenone
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 (104.237.193.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
104.237.193.x/24/3120278natblock
104.237.193.x/24/3020278natblock
104.237.193.x/24/2920278natblock
104.237.193.x/24/2820278natblock
104.237.193.x/24/2720278natblock
104.237.193.x/24/2620278natblock
104.237.193.x/24/2520278natblock
104.237.193.x/24/2420278natblock
104.237.192.x/24/2320278natblock
104.237.195.x/24/2220278natblock
104.237.197.x/24/2120278natblock
104.237.201.x/24/2020278natblock
104.237.209.x/24/1920278natblock
104.237.225.x/24/1816628natblock
104.237.129.x/24/1763949natblock
104.237.65.x/24/1622552natblock
104.236.193.x/24/1514061natblock
104.239.193.x/24/1419994natblock
104.233.193.x/24/1354600natblock
104.229.193.x/24/1211351natblock
104.253.193.x/24/1118779natblock
104.205.193.x/24/10852natblock
104.173.193.x/24/920001natblock
104.109.193.x/24/820940natblock

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.
IPv6 probes:
Spoofed source addressDestinationReceived
IPv6 Adjacent Netblock Testing:
Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
2602:ffc8:xx::/40/12020278natblock
2602:ffc8:xx::/40/11220278natblock
2602:ffc8:xx::/40/10420278natblock
2602:ffc8:xx::/40/9620278natblock
2602:ffc8:xx::/40/8820278natblock
2602:ffc8:xx::/40/8020278natblock
2602:ffc8:xx::/40/7220278natblock
2602:ffc8:xx::/40/6420278natblock
2602:ffc8:xx::/40/5620278natblock
2602:ffc8:xx::/40/4820278natblock
2602:ffc8:xx::/40/4020278natblock
2602:ffc8:80xx::/40/3220278natblock
2602:ff48:xx::/40/24UNROUTEDnatblock
2602:7fc8:xx::/40/16UNROUTEDnatblock

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.
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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