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Session Report

Summary:
Test run at: 2020-08-18 11:57:22 GMT
Client Prefix (v4): 23.227.192.x/24
Client AS (v4): 29802 (HVC-AS)
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 (23.227.192.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
23.227.192.x/24/3129802natblock
23.227.192.x/24/3029802natblock
23.227.192.x/24/2929802natblock
23.227.192.x/24/2829802natblock
23.227.192.x/24/2729802natblock
23.227.192.x/24/2629802natblock
23.227.192.x/24/2529802natblock
23.227.192.x/24/2429802natblock
23.227.193.x/24/2329802natblock
23.227.194.x/24/2229802natblock
23.227.196.x/24/2129802natblock
23.227.200.x/24/20UNROUTEDnatblock
23.227.208.x/24/19UNROUTEDnatblock
23.227.224.x/24/18UNROUTEDnatblock
23.227.128.x/24/1755081natblock
23.227.64.x/24/167922natblock
23.226.192.x/24/1514640natblock
23.225.192.x/24/1440065natblock
23.231.192.x/24/1320248natblock
23.235.192.x/24/1254641natblock
23.243.192.x/24/1120001natblock
23.195.192.x/24/10812natblock
23.163.192.x/24/962969natblock
23.99.192.x/24/88075natblock

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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