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Session Report

Summary:
Test run at: 2020-01-22 16:30:32 GMT
Client Prefix (v4): 104.37.174.x/24
Client AS (v4): 396073 (MAJESTIC-HOSTING-01)
IPv4 Probes: 75
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 unknown
Routable unknown
Largest spoofable neighbor prefix length /22

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 (104.37.174.x/24) can spoof 1023 neighboring addresses (within your /22 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
104.37.174.x/24/31396073yes
104.37.174.x/24/30396073yes
104.37.174.x/24/29396073yes
104.37.174.x/24/28396073yes
104.37.174.x/24/27396073yes
104.37.174.x/24/26396073yes
104.37.174.x/24/25396073yes
104.37.174.x/24/24396073yes
104.37.175.x/24/23396073yes
104.37.172.x/24/22396073yes
104.37.170.x/24/2162838sendto
104.37.166.x/24/20393442sendto
104.37.190.x/24/1919318sendto
104.37.142.x/24/1853282sendto
104.37.238.x/24/1721748sendto
104.37.46.x/24/16UNROUTEDsendto
104.36.174.x/24/15397545sendto
104.39.174.x/24/143999sendto
104.33.174.x/24/1320001sendto
104.45.174.x/24/128075sendto
104.53.174.x/24/117018sendto
104.5.174.x/24/107018sendto
104.101.174.x/24/9UNROUTEDsendto
104.165.174.x/24/818779sendto

Meaning of status in Received column:

yesPackets spoofed from adjacent netblock were received (but that netblock is within the source AS)
sendtoThe spoofer client was unable to send spoofed headers due to an operating system restriction.

IPv4 Outbound Filtering Depth:

The tracefilter test found your host able to spoof routable, non-adjacent source addresses through the first 1 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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