Test run at: 2019-07-08 15:10:21 GMT
Client Prefix (v4): 128.91.19.x/24
Client AS (v4): 55 (UPENN)
Client Prefix (v6): 2607:f470:xx::/40
Client AS (v6): 55 (UPENN)
IPv6 Probes: 84
Outbound spoofing summary (from the client to our server) Source address type IPv6 Private - ULA 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:
IPv6 Adjacent Netblock Testing:
Summary:
Spoofed source address (anon) Prefix
LengthASN of spoofed
source addressReceived 2607:f470:xx::/40 /120 55 no 2607:f470:xx::/40 /112 55 no 2607:f470:xx::/40 /104 55 no 2607:f470:xx::/40 /96 55 no 2607:f470:xx::/40 /88 55 no 2607:f470:xx::/40 /80 55 no 2607:f470:xx::/40 /72 55 no 2607:f470:xx::/40 /64 55 no 2607:f470:xx::/40 /56 55 no 2607:f470:xx::/40 /48 55 no 2607:f470:xx::/40 /40 55 no 2607:f470:80xx::/40 /32 55 no 2607:f4f0:xx::/40 /24 40581 no 2607:7470:xx::/40 /16 UNROUTED no Meaning of status in Received column:
no Packets spoofed from adjacent netblock were not received, probably due to blocking
The results from all tests are aggregated to produce a summary "State of IP Spoofing" report.Feedback:
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