Test run at: 2017-03-16 10:19:23 GMT
Client Prefix (v4): 41.188.137.x/24
Client AS (v4): 37084 (simbanet-tz)
Client Prefix (v6): 2001:4258:xx::/40
Client AS (v6): 37084 (simbanet-tz)
IPv6 Probes: 85
Outbound spoofing summary (from the client to our server) Source address type IPv6 Private - ULA blocked Routable blocked Largest spoofable neighbor prefix length /64
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.
IPv6 probes:
IPv6 Adjacent Netblock Testing:
Spoofed source address Destination Received
Summary:
Spoofed source address (anon) Prefix
LengthASN of spoofed
source addressReceived 2001:4258:xx::/40 /120 37084 yes 2001:4258:xx::/40 /112 37084 yes 2001:4258:xx::/40 /104 37084 yes 2001:4258:xx::/40 /96 37084 yes 2001:4258:xx::/40 /88 37084 yes 2001:4258:xx::/40 /80 37084 yes 2001:4258:xx::/40 /72 37084 yes 2001:4258:xx::/40 /64 37084 yes 2001:4258:xx::/40 /56 37084 natblock 2001:4258:xx::/40 /48 37084 natblock 2001:4258:xx::/40 /40 37084 natblock 2001:4258:80xx::/40 /32 37084 natblock 2001:42d8:xx::/40 /24 UNROUTED natblock 2001:c258:xx::/40 /16 UNROUTED natblock Meaning of status in Received column:
yes Packets spoofed from adjacent netblock were received (but that netblock is within the source AS) natblock Spoofed probe packets appear to be blocked by your local NAT or firewall rather than being rewritten with a public source address.
The results from all tests are aggregated to produce a summary "State of IP Spoofing" report.Feedback:
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