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: 2021-11-19 20:05:43 GMT
Client Prefix (v4): 191.241.79.x/24
Client AS (v4): 53181
IPv4 Probes: 66
Client Prefix (v6): 2804:113c:9cxx::/40
Client AS (v6): 53181
IPv6 Probes: 56

Outbound spoofing summary (from the client to our server)

Source address type IPv4 IPv6

Private - RFC1918 or ULA unknown blocked

Routable unknown blocked

Largest spoofable neighbor prefix length none 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	IPv4	IPv6
Private - RFC1918 or ULA	unknown	blocked
Routable	unknown	blocked
Largest spoofable neighbor prefix length	none	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.

IPv4 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.

IPv4 Adjacent Netblock Testing:

Your host (191.241.79.x/24) can spoof 0 neighboring addresses

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

191.241.79.x/24 /31 53181 sendto

191.241.79.x/24 /30 53181 sendto

191.241.79.x/24 /29 53181 sendto

191.241.79.x/24 /28 53181 sendto

191.241.79.x/24 /27 53181 sendto

191.241.79.x/24 /26 53181 sendto

191.241.79.x/24 /25 53181 sendto

191.241.79.x/24 /24 53181 sendto

191.241.78.x/24 /23 53181 sendto

191.241.77.x/24 /22 53181 sendto

191.241.75.x/24 /21 53181 sendto

191.241.71.x/24 /20 53181 sendto

191.241.95.x/24 /19 267546 sendto

191.241.111.x/24 /18 263034 sendto

191.241.15.x/24 /17 263663 sendto

191.241.207.x/24 /16 53061 sendto

191.240.79.x/24 /15 28202 sendto

191.243.79.x/24 /14 263499 sendto

191.245.79.x/24 /13 22085 sendto

191.249.79.x/24 /12 18881 sendto

191.225.79.x/24 /11 26615 sendto

191.209.79.x/24 /10 27699 sendto

191.177.79.x/24 /9 28573 sendto

191.113.79.x/24 /8 7418 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
191.241.79.x/24	/31	53181	sendto
191.241.79.x/24	/30	53181	sendto
191.241.79.x/24	/29	53181	sendto
191.241.79.x/24	/28	53181	sendto
191.241.79.x/24	/27	53181	sendto
191.241.79.x/24	/26	53181	sendto
191.241.79.x/24	/25	53181	sendto
191.241.79.x/24	/24	53181	sendto
191.241.78.x/24	/23	53181	sendto
191.241.77.x/24	/22	53181	sendto
191.241.75.x/24	/21	53181	sendto
191.241.71.x/24	/20	53181	sendto
191.241.95.x/24	/19	267546	sendto
191.241.111.x/24	/18	263034	sendto
191.241.15.x/24	/17	263663	sendto
191.241.207.x/24	/16	53061	sendto
191.240.79.x/24	/15	28202	sendto
191.243.79.x/24	/14	263499	sendto
191.245.79.x/24	/13	22085	sendto
191.249.79.x/24	/12	18881	sendto
191.225.79.x/24	/11	26615	sendto
191.209.79.x/24	/10	27699	sendto
191.177.79.x/24	/9	28573	sendto
191.113.79.x/24	/8	7418	sendto

IPv4 Outbound Filtering Depth:

The tracefilter test found your host unable to spoof routable, non-adjacent source addresses through even the first IP hop.

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 probes:

Spoofed source address Destination Received
2001:48d0:101:501::159 2001:48d0:101:501::242 no
2001:4978:1fb:6400::d2 2001:48d0:101:501::242 no
2001:49aa:111:aa00::11 2001:48d0:101:501::242 no
fd11:1111:1111::1111 2001:48d0:101:501::242 no
2001:48d0:101:501::159 2001:48d0:101:501::247 no
2001:4978:1fb:6400::d2 2001:48d0:101:501::247 no
2001:49aa:111:aa00::11 2001:48d0:101:501::247 no
fd11:1111:1111::1111 2001:48d0:101:501::247 no
2001:48d0:101:501::159 2001:610:510:115:192:42:115:98 no
2001:4978:1fb:6400::d2 2001:610:510:115:192:42:115:98 no
2001:49aa:111:aa00::11 2001:610:510:115:192:42:115:98 no
fd11:1111:1111::1111 2001:610:510:115:192:42:115:98 no
2001:48d0:101:501::159 2001:630:212:225:225:90ff:fe0c:45a6 no
2001:4978:1fb:6400::d2 2001:630:212:225:225:90ff:fe0c:45a6 no
2001:49aa:111:aa00::11 2001:630:212:225:225:90ff:fe0c:45a6 no
fd11:1111:1111::1111 2001:630:212:225:225:90ff:fe0c:45a6 no
2001:48d0:101:501::159 2001:770:1c:7:225:90ff:fe0c:acb4 no
2001:4978:1fb:6400::d2 2001:770:1c:7:225:90ff:fe0c:acb4 no
2001:49aa:111:aa00::11 2001:770:1c:7:225:90ff:fe0c:acb4 no
fd11:1111:1111::1111 2001:770:1c:7:225:90ff:fe0c:acb4 no

Spoofed source address	Destination	Received
2001:48d0:101:501::159	2001:48d0:101:501::242	no
2001:4978:1fb:6400::d2	2001:48d0:101:501::242	no
2001:49aa:111:aa00::11	2001:48d0:101:501::242	no
fd11:1111:1111::1111	2001:48d0:101:501::242	no
2001:48d0:101:501::159	2001:48d0:101:501::247	no
2001:4978:1fb:6400::d2	2001:48d0:101:501::247	no
2001:49aa:111:aa00::11	2001:48d0:101:501::247	no
fd11:1111:1111::1111	2001:48d0:101:501::247	no
2001:48d0:101:501::159	2001:610:510:115:192:42:115:98	no
2001:4978:1fb:6400::d2	2001:610:510:115:192:42:115:98	no
2001:49aa:111:aa00::11	2001:610:510:115:192:42:115:98	no
fd11:1111:1111::1111	2001:610:510:115:192:42:115:98	no
2001:48d0:101:501::159	2001:630:212:225:225:90ff:fe0c:45a6	no
2001:4978:1fb:6400::d2	2001:630:212:225:225:90ff:fe0c:45a6	no
2001:49aa:111:aa00::11	2001:630:212:225:225:90ff:fe0c:45a6	no
fd11:1111:1111::1111	2001:630:212:225:225:90ff:fe0c:45a6	no
2001:48d0:101:501::159	2001:770:1c:7:225:90ff:fe0c:acb4	no
2001:4978:1fb:6400::d2	2001:770:1c:7:225:90ff:fe0c:acb4	no
2001:49aa:111:aa00::11	2001:770:1c:7:225:90ff:fe0c:acb4	no
fd11:1111:1111::1111	2001:770:1c:7:225:90ff:fe0c:acb4	no

IPv6 Adjacent Netblock Testing:

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

2804:113c:9cxx::/40 /120 53181 no

2804:113c:9cxx::/40 /112 53181 no

2804:113c:9cxx::/40 /104 53181 no

2804:113c:9cxx::/40 /96 53181 no

2804:113c:9cxx::/40 /88 53181 no

2804:113c:9cxx::/40 /80 53181 no

2804:113c:9cxx::/40 /72 53181 no

2804:113c:9cxx::/40 /64 53181 no

2804:113c:9cxx::/40 /56 53181 no

2804:113c:9cxx::/40 /48 53181 no

2804:113c:9cxx::/40 /40 53181 no

2804:113c:1cxx::/40 /32 53181 no

2804:11bc:9cxx::/40 /24 263435 no

2804:913c:9cxx::/40 /16 UNROUTED no

Meaning of status in Received column:

no Packets spoofed from adjacent netblock were not received, probably due to blocking

Spoofed source address (anon)	Prefix Length	ASN of spoofed source address	Received
2804:113c:9cxx::/40	/120	53181	no
2804:113c:9cxx::/40	/112	53181	no
2804:113c:9cxx::/40	/104	53181	no
2804:113c:9cxx::/40	/96	53181	no
2804:113c:9cxx::/40	/88	53181	no
2804:113c:9cxx::/40	/80	53181	no
2804:113c:9cxx::/40	/72	53181	no
2804:113c:9cxx::/40	/64	53181	no
2804:113c:9cxx::/40	/56	53181	no
2804:113c:9cxx::/40	/48	53181	no
2804:113c:9cxx::/40	/40	53181	no
2804:113c:1cxx::/40	/32	53181	no
2804:11bc:9cxx::/40	/24	263435	no
2804:913c:9cxx::/40	/16	UNROUTED	no

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.