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Session Report

Summary:
Test run at: 2020-09-03 01:18:11 GMT
Client Prefix (v4): 104.218.48.x/24
Client AS (v4): 19318 (IS-AS-1)
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 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.

Warnings:

IPv4 Adjacent Netblock Testing:

Your host (104.218.48.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
104.218.48.x/24/3119318natblock
104.218.48.x/24/3019318natblock
104.218.48.x/24/2919318natblock
104.218.48.x/24/2819318natblock
104.218.48.x/24/2719318natblock
104.218.48.x/24/2619318natblock
104.218.48.x/24/2519318natblock
104.218.48.x/24/2419318natblock
104.218.49.x/24/2319318natblock
104.218.50.x/24/2219318natblock
104.218.52.x/24/2119318natblock
104.218.56.x/24/2054133natblock
104.218.32.x/24/19393571natblock
104.218.16.x/24/1819969natblock
104.218.112.x/24/1713690natblock
104.218.176.x/24/1611139natblock
104.219.48.x/24/1553893natblock
104.216.48.x/24/1440676natblock
104.222.48.x/24/1364225natblock
104.210.48.x/24/128075natblock
104.202.48.x/24/1118978natblock
104.250.48.x/24/10137280natblock
104.154.48.x/24/915169natblock
104.90.48.x/24/816625natblock

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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