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 received Spoofed packet was received. ✔ Pattern of tests from this IP block indicates a switch from allowing spoofing to blocking it. rewritten Spoofed packet was received, but the source address was changed en route. blocked Spoofed packet was not received, but unspoofed packet was. unknown Neither 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
LengthASN of spoofed
source addressReceived 104.218.48.x/24 /31 19318 natblock 104.218.48.x/24 /30 19318 natblock 104.218.48.x/24 /29 19318 natblock 104.218.48.x/24 /28 19318 natblock 104.218.48.x/24 /27 19318 natblock 104.218.48.x/24 /26 19318 natblock 104.218.48.x/24 /25 19318 natblock 104.218.48.x/24 /24 19318 natblock 104.218.49.x/24 /23 19318 natblock 104.218.50.x/24 /22 19318 natblock 104.218.52.x/24 /21 19318 natblock 104.218.56.x/24 /20 54133 natblock 104.218.32.x/24 /19 393571 natblock 104.218.16.x/24 /18 19969 natblock 104.218.112.x/24 /17 13690 natblock 104.218.176.x/24 /16 11139 natblock 104.219.48.x/24 /15 53893 natblock 104.216.48.x/24 /14 40676 natblock 104.222.48.x/24 /13 64225 natblock 104.210.48.x/24 /12 8075 natblock 104.202.48.x/24 /11 18978 natblock 104.250.48.x/24 /10 137280 natblock 104.154.48.x/24 /9 15169 natblock 104.90.48.x/24 /8 16625 natblock Meaning of status in Received column:
natblock Spoofed 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:
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