Session Report

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| Data: Stats Summary Recent Tests Remediation Results by AS Results by Country Results by Provider |

Summary:

Test run at: 2018-07-24 17:07:37 GMT
Client Prefix (v4): 66.228.162.x/24
Client AS (v4): 7233 (YAHOO-US)
Client Prefix (v6): 2001:4998:efxx::/40
Client AS (v6): 7233 (YAHOO-US)
IPv6 Probes: 65

Outbound spoofing summary (from the client to our server)

Source address type IPv6

Private - ULA received

Routable received

Largest spoofable neighbor prefix length /16

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.

Outbound spoofing summary (from the client to our server)
Source address type	IPv6
Private - ULA	received
Routable	received
Largest spoofable neighbor prefix length	/16

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 AS Route:

This test run probed the following paths in order to infer your ability to send different spoofed source packets. Each node in the graph corresponds to an autonomous system, i.e. different Internet service providers. NOTE: This graph does NOT show if an AS blocks spoofed packets, only the path taken by received spoofed packets. The IP Path Details are available for this run. If non-spoofed packets weren't received at a destination, the traceroute to that destination is not included in this graph and may even cause a totally empty graph.

IPv6 Adjacent Netblock Testing:

Spoofed source address (anon) Prefix
Length ASN of spoofed
source address Received

2001:4998:efxx::/40 /120 7233 yes

2001:4998:efxx::/40 /112 7233 yes

2001:4998:efxx::/40 /104 7233 yes

2001:4998:efxx::/40 /96 7233 yes

2001:4998:efxx::/40 /88 7233 yes

2001:4998:efxx::/40 /80 7233 yes

2001:4998:efxx::/40 /72 7233 yes

2001:4998:efxx::/40 /64 7233 yes

2001:4998:efxx::/40 /56 7233 yes

2001:4998:efxx::/40 /48 7233 yes

2001:4998:efxx::/40 /40 10310 yes

2001:4998:6fxx::/40 /32 10310 yes

2001:4918:efxx::/40 /24 7849 yes

2001:c998:efxx::/40 /16 UNROUTED yes

Meaning of status in Received column:

yes Packets spoofed from adjacent netblock were received
yes Packets spoofed from adjacent netblock were received (but that netblock is within the source AS)

Spoofed source address (anon)	Prefix Length	ASN of spoofed source address	Received
2001:4998:efxx::/40	/120	7233	yes
2001:4998:efxx::/40	/112	7233	yes
2001:4998:efxx::/40	/104	7233	yes
2001:4998:efxx::/40	/96	7233	yes
2001:4998:efxx::/40	/88	7233	yes
2001:4998:efxx::/40	/80	7233	yes
2001:4998:efxx::/40	/72	7233	yes
2001:4998:efxx::/40	/64	7233	yes
2001:4998:efxx::/40	/56	7233	yes
2001:4998:efxx::/40	/48	7233	yes
2001:4998:efxx::/40	/40	10310	yes
2001:4998:6fxx::/40	/32	10310	yes
2001:4918:efxx::/40	/24	7849	yes
2001:c998:efxx::/40	/16	UNROUTED	yes

Summary:

The results from all tests are aggregated to produce a summary "State of IP Spoofing" report.

Feedback:

We welcome questions and feedback to the Spoofer Information Mailing List and invite users to join the Spoofer Users Mailing List for discussion and announcements.

Last Modified

yes	Packets spoofed from adjacent netblock were received
yes	Packets spoofed from adjacent netblock were received (but that netblock is within the source AS)