Test run at: 2017-02-11 14:37:28 GMT
Client Prefix (v4): 83.233.242.x/24
Client AS (v4): 29518 (BREDBAND2)
IPv4 Probes: 90
Outbound spoofing summary (from the client to our server) Source address type IPv4 Private - RFC1918 rewritten Routable rewritten Largest spoofable neighbor prefix length 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 (83.233.242.x/24) can spoof 0 neighboring addresses
Spoofed source address (anon) Prefix
ASN of spoofed
Received 83.233.242.x/24 /31 29518 sendto 83.233.242.x/24 /30 29518 sendto 83.233.242.x/24 /29 29518 rewritten 83.233.242.x/24 /28 29518 rewritten 83.233.242.x/24 /27 29518 rewritten 83.233.242.x/24 /26 29518 rewritten 83.233.242.x/24 /25 29518 rewritten 83.233.242.x/24 /24 29518 rewritten 83.233.243.x/24 /23 29518 rewritten 83.233.240.x/24 /22 29518 rewritten 83.233.246.x/24 /21 29518 natblock 83.233.250.x/24 /20 29518 natblock 83.233.226.x/24 /19 29518 natblock 83.233.210.x/24 /18 29518 natblock 83.233.178.x/24 /17 29518 natblock 83.233.114.x/24 /16 29518 rewritten 83.232.242.x/24 /15 1136 rewritten 83.235.242.x/24 /14 6799 rewritten 83.237.242.x/24 /13 8359 rewritten 83.225.242.x/24 /12 UNROUTED rewritten 83.249.242.x/24 /11 39651 rewritten 83.201.242.x/24 /10 3215 rewritten 83.169.242.x/24 /9 31163 rewritten 83.105.242.x/24 /8 2529 rewritten
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. rewritten The source address of the probe packets we received differs from the spoofed address. It appears that an intermediate device is rewriting your packet headers. sendto The spoofer client was unable to send spoofed headers due to an operating system restriction.
IPv4 Outbound Filtering Depth:
The results from all tests are aggregated to produce a summary "State of IP Spoofing" report.Feedback: