Session Report

Summary:

Test run at: 2019-05-19 14:58:22 GMT
Client Prefix (v4): 87.122.217.x/24
Client AS (v4): 8881 (VERSATEL)
Client Prefix (v6): 2001:16b8:axx::/40
Client AS (v6): 8881 (VERSATEL)
IPv6 Probes: 84

Outbound spoofing summary (from the client to our server)
Source address type	IPv6
Private - ULA	blocked
Routable	blocked
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.

IPv6 probes:

Spoofed source address	Destination	Received

IPv6 Adjacent Netblock Testing:

Spoofed source address (anon)	Prefix Length	ASN of spoofed source address	Received
2001:16b8:axx::/40	/120	8881	sendto
2001:16b8:axx::/40	/112	8881	sendto
2001:16b8:axx::/40	/104	8881	sendto
2001:16b8:axx::/40	/96	8881	sendto
2001:16b8:axx::/40	/88	8881	sendto
2001:16b8:axx::/40	/80	8881	sendto
2001:16b8:axx::/40	/72	8881	sendto
2001:16b8:axx::/40	/64	8881	sendto
2001:16b8:axx::/40	/56	8881	sendto
2001:16b8:axx::/40	/48	8881	sendto
2001:16b8:axx::/40	/40	8881	sendto
2001:16b8:8axx::/40	/32	8881	sendto
2001:1638:axx::/40	/24	31400	sendto
2001:96b8:axx::/40	/16	UNROUTED	sendto

Meaning of status in Received column:

sendto

The 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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