Test run at: 2020-08-20 14:27:05 GMT
Client Prefix (v4): 5.206.231.x/24
Client AS (v4): 47674 (NETSOLUTIONS)
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 (5.206.231.x/24) can spoof 0 neighboring addresses
Spoofed source address (anon) Prefix
LengthASN of spoofed
source addressReceived 5.206.231.x/24 /31 47674 natblock 5.206.231.x/24 /30 47674 natblock 5.206.231.x/24 /29 47674 natblock 5.206.231.x/24 /28 47674 natblock 5.206.231.x/24 /27 47674 natblock 5.206.231.x/24 /26 47674 natblock 5.206.231.x/24 /25 47674 natblock 5.206.231.x/24 /24 47674 natblock 5.206.230.x/24 /23 47674 natblock 5.206.229.x/24 /22 UNROUTED natblock 5.206.227.x/24 /21 49349 natblock 5.206.239.x/24 /20 206262 natblock 5.206.247.x/24 /19 57332 natblock 5.206.199.x/24 /18 39642 natblock 5.206.167.x/24 /17 21334 natblock 5.206.103.x/24 /16 8369 natblock 5.207.231.x/24 /15 21497 natblock 5.204.231.x/24 /14 8448 natblock 5.202.231.x/24 /13 49100 natblock 5.198.231.x/24 /12 13113 natblock 5.222.231.x/24 /11 UNROUTED natblock 5.238.231.x/24 /10 58224 natblock 5.142.231.x/24 /9 12389 natblock 5.78.231.x/24 /8 16322 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:
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.