Test run at: 2021-04-16 16:27:47 GMT
Client Prefix (v4): 177.155.232.x/24
Client AS (v4): 263620
IPv4 Probes: 66
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 (177.155.232.x/24) can spoof 0 neighboring addresses
Spoofed source address (anon) Prefix
LengthASN of spoofed
source addressReceived 177.155.232.x/24 /31 263620 natblock 177.155.232.x/24 /30 263620 natblock 177.155.232.x/24 /29 263620 natblock 177.155.232.x/24 /28 263620 natblock 177.155.232.x/24 /27 263620 natblock 177.155.232.x/24 /26 263620 natblock 177.155.232.x/24 /25 263620 natblock 177.155.232.x/24 /24 263620 natblock 177.155.233.x/24 /23 263620 natblock 177.155.234.x/24 /22 263620 natblock 177.155.236.x/24 /21 263620 natblock 177.155.224.x/24 /20 52773 natblock 177.155.248.x/24 /19 53184 natblock 177.155.200.x/24 /18 53222 natblock 177.155.168.x/24 /17 52752 natblock 177.155.104.x/24 /16 265233 natblock 177.154.232.x/24 /15 262298 natblock 177.153.232.x/24 /14 27715 natblock 177.159.232.x/24 /13 18881 natblock 177.147.232.x/24 /12 26599 natblock 177.139.232.x/24 /11 27699 natblock 177.187.232.x/24 /10 26615 natblock 177.219.232.x/24 /9 26615 natblock 177.27.232.x/24 /8 27699 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 able to spoof routable, non-adjacent source addresses through the first 3 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.