Session Report

| Spoofer Project Page Download Client Software FAQ API Notifications |

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

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
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	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:

⚠️ Your host was unable to source even non-spoofed IPv6 UDP traffic to our servers. A firewall, router or other middlebox is preventing our testing. To test your provider's network further, you must remove the firewall or router and connect directly.

IPv6 Adjacent Netblock Testing:

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

2a09:bac0:xx::/40 /120 13335 sendto
2a09:bac0:xx::/40 /112 13335 sendto
2a09:bac0:xx::/40 /104 13335 sendto
2a09:bac0:xx::/40 /96 13335 sendto
2a09:bac0:xx::/40 /88 13335 sendto
2a09:bac0:xx::/40 /80 13335 sendto
2a09:bac0:xx::/40 /72 13335 sendto
2a09:bac0:xx::/40 /64 13335 sendto
2a09:bac0:xx::/40 /56 13335 sendto
2a09:bac0:xx::/40 /48 13335 sendto
2a09:bac0:xx::/40 /40 UNROUTED sendto
2a09:bac0:80xx::/40 /32 UNROUTED sendto
2a09:ba40:xx::/40 /24 60843 sendto
2a09:3ac0:xx::/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.

Spoofed source address (anon)	Prefix Length	ASN of spoofed source address	Received
2a09:bac0:xx::/40	/120	13335	sendto
2a09:bac0:xx::/40	/112	13335	sendto
2a09:bac0:xx::/40	/104	13335	sendto
2a09:bac0:xx::/40	/96	13335	sendto
2a09:bac0:xx::/40	/88	13335	sendto
2a09:bac0:xx::/40	/80	13335	sendto
2a09:bac0:xx::/40	/72	13335	sendto
2a09:bac0:xx::/40	/64	13335	sendto
2a09:bac0:xx::/40	/56	13335	sendto
2a09:bac0:xx::/40	/48	13335	sendto
2a09:bac0:xx::/40	/40	UNROUTED	sendto
2a09:bac0:80xx::/40	/32	UNROUTED	sendto
2a09:ba40:xx::/40	/24	60843	sendto
2a09:3ac0:xx::/40	/16	UNROUTED	sendto

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