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: 2019-11-06 23:20:55 GMT
Client Prefix (v4): 66.58.129.x/24
Client AS (v4): 8047 (GCI)
IPv4 Probes: 75
Client Prefix (v6): 2610:100:4fxx::/40
Client AS (v6): 8047 (GCI)
IPv6 Probes: 68

Outbound spoofing summary (from the client to our server)

Source address type IPv4 IPv6

Private - RFC1918 or ULA blocked unknown

Routable received unknown

Largest spoofable neighbor prefix length /22 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	blocked	unknown
Routable	received	unknown
Largest spoofable neighbor prefix length	/22	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 is behind a Network Address Translation (NAT) router or firewall but spoofed packets are still being received without modification. See here for more information.

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 (66.58.129.x/24) can spoof 1023 neighboring addresses (within your /22 prefix)

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

66.58.129.x/24 /31 8047 sendto

66.58.129.x/24 /30 8047 sendto

66.58.129.x/24 /29 8047 sendto

66.58.129.x/24 /28 8047 sendto

66.58.129.x/24 /27 8047 sendto

66.58.129.x/24 /26 8047 sendto

66.58.129.x/24 /25 8047 sendto

66.58.129.x/24 /24 8047 sendto

66.58.128.x/24 /23 8047 sendto

66.58.131.x/24 /22 8047 yes

66.58.133.x/24 /21 8047 sendto

66.58.137.x/24 /20 8047 sendto

66.58.145.x/24 /19 8047 sendto

66.58.161.x/24 /18 8047 sendto

66.58.193.x/24 /17 8047 sendto

66.58.1.x/24 /16 701 sendto

66.59.129.x/24 /15 6539 sendto

66.56.129.x/24 /14 11426 sendto

66.62.129.x/24 /13 19092 sendto

66.50.129.x/24 /12 10396 sendto

66.42.129.x/24 /11 6181 sendto

66.26.129.x/24 /10 11426 sendto

66.122.129.x/24 /9 7132 sendto

66.186.129.x/24 /8 11951 sendto

Meaning of status in Received column:

yes Packets spoofed from adjacent netblock were received (but that netblock is within the source AS)
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
66.58.129.x/24	/31	8047	sendto
66.58.129.x/24	/30	8047	sendto
66.58.129.x/24	/29	8047	sendto
66.58.129.x/24	/28	8047	sendto
66.58.129.x/24	/27	8047	sendto
66.58.129.x/24	/26	8047	sendto
66.58.129.x/24	/25	8047	sendto
66.58.129.x/24	/24	8047	sendto
66.58.128.x/24	/23	8047	sendto
66.58.131.x/24	/22	8047	yes
66.58.133.x/24	/21	8047	sendto
66.58.137.x/24	/20	8047	sendto
66.58.145.x/24	/19	8047	sendto
66.58.161.x/24	/18	8047	sendto
66.58.193.x/24	/17	8047	sendto
66.58.1.x/24	/16	701	sendto
66.59.129.x/24	/15	6539	sendto
66.56.129.x/24	/14	11426	sendto
66.62.129.x/24	/13	19092	sendto
66.50.129.x/24	/12	10396	sendto
66.42.129.x/24	/11	6181	sendto
66.26.129.x/24	/10	11426	sendto
66.122.129.x/24	/9	7132	sendto
66.186.129.x/24	/8	11951	sendto

IPv4 Outbound Filtering Depth:

The tracefilter test found your host able to spoof routable, non-adjacent source addresses through the first 1 IP hop(s).

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 2001:40b0:7500:280::5458:517a no
2001:4978:1fb:6400::d2 2001:40b0:7500:280::5458:517a no
2001:49aa:111:aa00::11 2001:40b0:7500:280::5458:517a no
fd11:1111:1111::1111 2001:40b0:7500:280::5458:517a no
2001:48d0:101:501::159 2001:410:102:1::78 no
2001:4978:1fb:6400::d2 2001:410:102:1::78 no
2001:49aa:111:aa00::11 2001:410:102:1::78 no
fd11:1111:1111::1111 2001:410:102:1::78 no
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 2001:708:40:2001:21c:c0ff:fea2:4c5c no
2001:4978:1fb:6400::d2 2001:708:40:2001:21c:c0ff:fea2:4c5c no
2001:49aa:111:aa00::11 2001:708:40:2001:21c:c0ff:fea2:4c5c no
fd11:1111:1111::1111 2001:708:40:2001:21c:c0ff:fea2:4c5c no
2001:48d0:101:501::159 2001:770:18:7:225:90ff:fe0c:acb4 no
2001:4978:1fb:6400::d2 2001:770:18:7:225:90ff:fe0c:acb4 no
2001:49aa:111:aa00::11 2001:770:18:7:225:90ff:fe0c:acb4 no
fd11:1111:1111::1111 2001:770:18:7:225:90ff:fe0c:acb4 no
2001:48d0:101:501::159 2001:df0:4:800:21c:c0ff:feb2:ad5f no
2001:4978:1fb:6400::d2 2001:df0:4:800:21c:c0ff:feb2:ad5f no
2001:49aa:111:aa00::11 2001:df0:4:800:21c:c0ff:feb2:ad5f no
fd11:1111:1111::1111 2001:df0:4:800:21c:c0ff:feb2:ad5f no
2001:48d0:101:501::159 2607:f278:2:13:ba27:ebff:fe3f:b21e no
2001:4978:1fb:6400::d2 2607:f278:2:13:ba27:ebff:fe3f:b21e no
2001:49aa:111:aa00::11 2607:f278:2:13:ba27:ebff:fe3f:b21e no
fd11:1111:1111::1111 2607:f278:2:13:ba27:ebff:fe3f:b21e no

Spoofed source address	Destination	Received
2001:48d0:101:501::159	2001:40b0:7500:280::5458:517a	no
2001:4978:1fb:6400::d2	2001:40b0:7500:280::5458:517a	no
2001:49aa:111:aa00::11	2001:40b0:7500:280::5458:517a	no
fd11:1111:1111::1111	2001:40b0:7500:280::5458:517a	no
2001:48d0:101:501::159	2001:410:102:1::78	no
2001:4978:1fb:6400::d2	2001:410:102:1::78	no
2001:49aa:111:aa00::11	2001:410:102:1::78	no
fd11:1111:1111::1111	2001:410:102:1::78	no
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	2001:708:40:2001:21c:c0ff:fea2:4c5c	no
2001:4978:1fb:6400::d2	2001:708:40:2001:21c:c0ff:fea2:4c5c	no
2001:49aa:111:aa00::11	2001:708:40:2001:21c:c0ff:fea2:4c5c	no
fd11:1111:1111::1111	2001:708:40:2001:21c:c0ff:fea2:4c5c	no
2001:48d0:101:501::159	2001:770:18:7:225:90ff:fe0c:acb4	no
2001:4978:1fb:6400::d2	2001:770:18:7:225:90ff:fe0c:acb4	no
2001:49aa:111:aa00::11	2001:770:18:7:225:90ff:fe0c:acb4	no
fd11:1111:1111::1111	2001:770:18:7:225:90ff:fe0c:acb4	no
2001:48d0:101:501::159	2001:df0:4:800:21c:c0ff:feb2:ad5f	no
2001:4978:1fb:6400::d2	2001:df0:4:800:21c:c0ff:feb2:ad5f	no
2001:49aa:111:aa00::11	2001:df0:4:800:21c:c0ff:feb2:ad5f	no
fd11:1111:1111::1111	2001:df0:4:800:21c:c0ff:feb2:ad5f	no
2001:48d0:101:501::159	2607:f278:2:13:ba27:ebff:fe3f:b21e	no
2001:4978:1fb:6400::d2	2607:f278:2:13:ba27:ebff:fe3f:b21e	no
2001:49aa:111:aa00::11	2607:f278:2:13:ba27:ebff:fe3f:b21e	no
fd11:1111:1111::1111	2607:f278:2:13:ba27:ebff:fe3f:b21e	no

IPv6 Adjacent Netblock Testing:

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

2610:100:4fxx::/40 /120 8047 sendto
2610:100:4fxx::/40 /112 8047 sendto
2610:100:4fxx::/40 /104 8047 sendto
2610:100:4fxx::/40 /96 8047 sendto
2610:100:4fxx::/40 /88 8047 sendto
2610:100:4fxx::/40 /80 8047 sendto
2610:100:4fxx::/40 /72 8047 sendto
2610:100:4fxx::/40 /64 8047 sendto
2610:100:4fxx::/40 /56 8047 sendto
2610:100:4fxx::/40 /48 8047 sendto
2610:100:4fxx::/40 /40 8047 sendto
2610:100:cfxx::/40 /32 8047 sendto
2610:180:4fxx::/40 /24 UNROUTED sendto
2610:8100:4fxx::/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
2610:100:4fxx::/40	/120	8047	sendto
2610:100:4fxx::/40	/112	8047	sendto
2610:100:4fxx::/40	/104	8047	sendto
2610:100:4fxx::/40	/96	8047	sendto
2610:100:4fxx::/40	/88	8047	sendto
2610:100:4fxx::/40	/80	8047	sendto
2610:100:4fxx::/40	/72	8047	sendto
2610:100:4fxx::/40	/64	8047	sendto
2610:100:4fxx::/40	/56	8047	sendto
2610:100:4fxx::/40	/48	8047	sendto
2610:100:4fxx::/40	/40	8047	sendto
2610:100:cfxx::/40	/32	8047	sendto
2610:180:4fxx::/40	/24	UNROUTED	sendto
2610:8100:4fxx::/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.

yes	Packets spoofed from adjacent netblock were received (but that netblock is within the source AS)
sendto	The spoofer client was unable to send spoofed headers due to an operating system restriction.