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Session Report

Summary:
Test run at: 2021-06-11 16:19:12 GMT
Client Prefix (v4): 8.47.15.x/24
Client AS (v4): 13335 (CLOUDFLARENET)
Client Prefix (v6): 2a09:bac0:xx::/40
Client AS (v6): 13335 (CLOUDFLARENET)
IPv6 Probes: 56
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
receivedSpoofed packet was received.Pattern of tests from this IP block indicates a switch from allowing spoofing to blocking it.
rewrittenSpoofed packet was received, but the source address was changed en route.
blockedSpoofed packet was not received, but unspoofed packet was.
unknownNeither spoofed nor unspoofed packet was received.

Warnings:

IPv6 Adjacent Netblock Testing:

Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
2a09:bac0:xx::/40/12013335sendto
2a09:bac0:xx::/40/11213335sendto
2a09:bac0:xx::/40/10413335sendto
2a09:bac0:xx::/40/9613335sendto
2a09:bac0:xx::/40/8813335sendto
2a09:bac0:xx::/40/8013335sendto
2a09:bac0:xx::/40/7213335sendto
2a09:bac0:xx::/40/6413335sendto
2a09:bac0:xx::/40/5613335sendto
2a09:bac0:xx::/40/4813335sendto
2a09:bac0:xx::/40/40UNROUTEDsendto
2a09:bac0:80xx::/40/32UNROUTEDsendto
2a09:ba40:xx::/40/2460843sendto
2a09:3ac0:xx::/40/16UNROUTEDsendto

Meaning of status in Received column:

sendtoThe spoofer client was unable to send spoofed headers due to an operating system restriction.
Summary:
The results from all tests are aggregated to produce a summary "State of IP Spoofing" report.
Feedback:
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