Test run at: 2016-11-17 10:52:36 GMT
Client Prefix (v4): 89.27.170.x/24
Client AS (v4): 8881 (VERSATEL)
IPv4 Probes: 105
Client Prefix (v6): 2001:67c:27xx::/40
Client AS (v6): 8881 (VERSATEL)
IPv6 Probes: 72
Outbound spoofing summary (from the client to our server) Source address type IPv4 IPv6 Private - RFC1918 or ULA unknown unknown Routable unknown unknown Largest spoofable neighbor prefix length none none
Meaning of result status in column:
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.
IPv4 Adjacent Netblock Testing:
Your host (89.27.170.x/24) can spoof 0 neighboring addresses
Spoofed source address (anon) Prefix
ASN of spoofed
Received 89.27.170.x/24 /31 8881 natblock 89.27.170.x/24 /30 8881 natblock 89.27.170.x/24 /29 8881 natblock 89.27.170.x/24 /28 8881 natblock 89.27.170.x/24 /27 8881 natblock 89.27.170.x/24 /26 8881 natblock 89.27.170.x/24 /25 8881 natblock 89.27.170.x/24 /24 8881 natblock 89.27.171.x/24 /23 8881 natblock 89.27.168.x/24 /22 8881 natblock 89.27.174.x/24 /21 8881 natblock 89.27.162.x/24 /20 8881 natblock 89.27.186.x/24 /19 8881 natblock 89.27.138.x/24 /18 8881 natblock 89.27.234.x/24 /17 8881 natblock 89.27.42.x/24 /16 16086 natblock 89.26.170.x/24 /15 5626 natblock 89.25.170.x/24 /14 31242 natblock 89.31.170.x/24 /13 47720 natblock 89.19.170.x/24 /12 15582 natblock 89.11.170.x/24 /11 15659 natblock 89.59.170.x/24 /10 5430 natblock 89.91.170.x/24 /9 5410 natblock 89.155.170.x/24 /8 2860 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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