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: 2018-12-03 20:18:20 GMT
Client Prefix (v4): 160.238.172.x/24
Client AS (v4): 266554
IPv4 Probes: 124
Client Prefix (v6): 2804:3dcc:5axx::/40
Client AS (v6): 266554
IPv6 Probes: 82

Outbound spoofing summary (from the client to our server)

Source address type IPv4 IPv6

Private - RFC1918 or ULA blocked ✔ received

Routable ✔ received ✔ received

Largest spoofable neighbor prefix length /9 /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	IPv4	IPv6
Private - RFC1918 or ULA	blocked	✔	received
Routable	✔	received	✔	received
Largest spoofable neighbor prefix length	/9	/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.

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 (160.238.172.x/24) can spoof 8388607 neighboring addresses (within your /9 prefix)

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

160.238.172.x/24 /31 266554 natblock

160.238.172.x/24 /30 266554 natblock

160.238.172.x/24 /29 266554 natblock

160.238.172.x/24 /28 266554 natblock

160.238.172.x/24 /27 266554 yes

160.238.172.x/24 /26 266554 yes

160.238.172.x/24 /25 266554 yes

160.238.172.x/24 /24 266554 natblock

160.238.173.x/24 /23 266554 natblock

160.238.174.x/24 /22 266554 yes

160.238.168.x/24 /21 265725 yes

160.238.164.x/24 /20 UNROUTED natblock

160.238.188.x/24 /19 266642 yes

160.238.140.x/24 /18 266557 yes

160.238.236.x/24 /17 266577 yes

160.238.44.x/24 /16 40676 yes

160.239.172.x/24 /15 9366 yes

160.236.172.x/24 /14 UNROUTED natblock

160.234.172.x/24 /13 UNROUTED natblock

160.230.172.x/24 /12 3549 yes

160.254.172.x/24 /11 UNROUTED natblock

160.206.172.x/24 /10 UNROUTED natblock

160.174.172.x/24 /9 6713 yes

160.110.172.x/24 /8 UNROUTED natblock

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)
natblock Spoofed probe packets appear to be blocked by your local NAT or firewall rather than being rewritten with a public source address.

Spoofed source address (anon)	Prefix Length	ASN of spoofed source address	Received
160.238.172.x/24	/31	266554	natblock
160.238.172.x/24	/30	266554	natblock
160.238.172.x/24	/29	266554	natblock
160.238.172.x/24	/28	266554	natblock
160.238.172.x/24	/27	266554	yes
160.238.172.x/24	/26	266554	yes
160.238.172.x/24	/25	266554	yes
160.238.172.x/24	/24	266554	natblock
160.238.173.x/24	/23	266554	natblock
160.238.174.x/24	/22	266554	yes
160.238.168.x/24	/21	265725	yes
160.238.164.x/24	/20	UNROUTED	natblock
160.238.188.x/24	/19	266642	yes
160.238.140.x/24	/18	266557	yes
160.238.236.x/24	/17	266577	yes
160.238.44.x/24	/16	40676	yes
160.239.172.x/24	/15	9366	yes
160.236.172.x/24	/14	UNROUTED	natblock
160.234.172.x/24	/13	UNROUTED	natblock
160.230.172.x/24	/12	3549	yes
160.254.172.x/24	/11	UNROUTED	natblock
160.206.172.x/24	/10	UNROUTED	natblock
160.174.172.x/24	/9	6713	yes
160.110.172.x/24	/8	UNROUTED	natblock

IPv4 Outbound Filtering Depth:

The tracefilter test found your host able to spoof routable, non-adjacent source addresses through the first 10 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:ec4:7aff:fea8:71a8 2001:388:1:5001:21c:c0ff:fea2:4a3a yes
2001:4978:1fb:6400::d2 2001:388:1:5001:21c:c0ff:fea2:4a3a yes
2001:49aa:111:aa00::11 2001:388:1:5001:21c:c0ff:fea2:4a3a yes
fd11:1111:1111::1111 2001:388:1:5001:21c:c0ff:fea2:4a3a yes
2001:48d0:101:501:ec4:7aff:fea8:71a8 2001:48d0:101:501::242 yes
2001:4978:1fb:6400::d2 2001:48d0:101:501::242 yes
2001:49aa:111:aa00::11 2001:48d0:101:501::242 yes
fd11:1111:1111::1111 2001:48d0:101:501::242 yes
2001:48d0:101:501:ec4:7aff:fea8:71a8 2001:610:510:115:192:42:115:98 yes
2001:4978:1fb:6400::d2 2001:610:510:115:192:42:115:98 yes
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:ec4:7aff:fea8:71a8 2001:630:212:225:225:90ff:fe0c:45a6 yes
2001:4978:1fb:6400::d2 2001:630:212:225:225:90ff:fe0c:45a6 yes
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:ec4:7aff:fea8:71a8 2001:708:40:2001:21c:c0ff:fea2:4c5c yes
2001:4978:1fb:6400::d2 2001:708:40:2001:21c:c0ff:fea2:4c5c yes
2001:49aa:111:aa00::11 2001:708:40:2001:21c:c0ff:fea2:4c5c yes
fd11:1111:1111::1111 2001:708:40:2001:21c:c0ff:fea2:4c5c no
2001:48d0:101:501:ec4:7aff:fea8:71a8 2001:770:18:7:225:90ff:fe0c:acb4 yes
2001:4978:1fb:6400::d2 2001:770:18:7:225:90ff:fe0c:acb4 yes
2001:49aa:111:aa00::11 2001:770:18:7:225:90ff:fe0c:acb4 yes
fd11:1111:1111::1111 2001:770:18:7:225:90ff:fe0c:acb4 yes
2001:48d0:101:501:ec4:7aff:fea8:71a8 2607:f278:2:13:ba27:ebff:fe3f:b21e yes
2001:4978:1fb:6400::d2 2607:f278:2:13:ba27:ebff:fe3f:b21e yes
2001:49aa:111:aa00::11 2607:f278:2:13:ba27:ebff:fe3f:b21e yes
fd11:1111:1111::1111 2607:f278:2:13:ba27:ebff:fe3f:b21e yes

Spoofed source address	Destination	Received
2001:48d0:101:501:ec4:7aff:fea8:71a8	2001:388:1:5001:21c:c0ff:fea2:4a3a	yes
2001:4978:1fb:6400::d2	2001:388:1:5001:21c:c0ff:fea2:4a3a	yes
2001:49aa:111:aa00::11	2001:388:1:5001:21c:c0ff:fea2:4a3a	yes
fd11:1111:1111::1111	2001:388:1:5001:21c:c0ff:fea2:4a3a	yes
2001:48d0:101:501:ec4:7aff:fea8:71a8	2001:48d0:101:501::242	yes
2001:4978:1fb:6400::d2	2001:48d0:101:501::242	yes
2001:49aa:111:aa00::11	2001:48d0:101:501::242	yes
fd11:1111:1111::1111	2001:48d0:101:501::242	yes
2001:48d0:101:501:ec4:7aff:fea8:71a8	2001:610:510:115:192:42:115:98	yes
2001:4978:1fb:6400::d2	2001:610:510:115:192:42:115:98	yes
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:ec4:7aff:fea8:71a8	2001:630:212:225:225:90ff:fe0c:45a6	yes
2001:4978:1fb:6400::d2	2001:630:212:225:225:90ff:fe0c:45a6	yes
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:ec4:7aff:fea8:71a8	2001:708:40:2001:21c:c0ff:fea2:4c5c	yes
2001:4978:1fb:6400::d2	2001:708:40:2001:21c:c0ff:fea2:4c5c	yes
2001:49aa:111:aa00::11	2001:708:40:2001:21c:c0ff:fea2:4c5c	yes
fd11:1111:1111::1111	2001:708:40:2001:21c:c0ff:fea2:4c5c	no
2001:48d0:101:501:ec4:7aff:fea8:71a8	2001:770:18:7:225:90ff:fe0c:acb4	yes
2001:4978:1fb:6400::d2	2001:770:18:7:225:90ff:fe0c:acb4	yes
2001:49aa:111:aa00::11	2001:770:18:7:225:90ff:fe0c:acb4	yes
fd11:1111:1111::1111	2001:770:18:7:225:90ff:fe0c:acb4	yes
2001:48d0:101:501:ec4:7aff:fea8:71a8	2607:f278:2:13:ba27:ebff:fe3f:b21e	yes
2001:4978:1fb:6400::d2	2607:f278:2:13:ba27:ebff:fe3f:b21e	yes
2001:49aa:111:aa00::11	2607:f278:2:13:ba27:ebff:fe3f:b21e	yes
fd11:1111:1111::1111	2607:f278:2:13:ba27:ebff:fe3f:b21e	yes

IPv6 Adjacent Netblock Testing:

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

2804:3dcc:5axx::/40 /120 266554 yes

2804:3dcc:5axx::/40 /112 266554 yes

2804:3dcc:5axx::/40 /104 266554 yes

2804:3dcc:5axx::/40 /96 266554 yes

2804:3dcc:5axx::/40 /88 266554 yes

2804:3dcc:5axx::/40 /80 266554 yes

2804:3dcc:5axx::/40 /72 266554 yes

2804:3dcc:5axx::/40 /64 266554 yes

2804:3dcc:5axx::/40 /56 266554 yes

2804:3dcc:5axx::/40 /48 266554 yes

2804:3dcc:5axx::/40 /40 266554 yes

2804:3dcc:daxx::/40 /32 266554 yes

2804:3d4c:5axx::/40 /24 266266 yes

2804:bdcc:5axx::/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
2804:3dcc:5axx::/40	/120	266554	yes
2804:3dcc:5axx::/40	/112	266554	yes
2804:3dcc:5axx::/40	/104	266554	yes
2804:3dcc:5axx::/40	/96	266554	yes
2804:3dcc:5axx::/40	/88	266554	yes
2804:3dcc:5axx::/40	/80	266554	yes
2804:3dcc:5axx::/40	/72	266554	yes
2804:3dcc:5axx::/40	/64	266554	yes
2804:3dcc:5axx::/40	/56	266554	yes
2804:3dcc:5axx::/40	/48	266554	yes
2804:3dcc:5axx::/40	/40	266554	yes
2804:3dcc:daxx::/40	/32	266554	yes
2804:3d4c:5axx::/40	/24	266266	yes
2804:bdcc:5axx::/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.

yes	Packets spoofed from adjacent netblock were received
yes	Packets spoofed from adjacent netblock were received (but that netblock is within the source AS)
natblock	Spoofed probe packets appear to be blocked by your local NAT or firewall rather than being rewritten with a public source address.