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: 2019-10-28 17:08:12 GMT
Client Prefix (v4): 192.136.136.x/24
Client AS (v4): 10745 (ARIN-ASH-CHA)
IPv4 Probes: 75
Client Prefix (v6): 2001:500:1xx::/40
Client AS (v6): 10745 (ARIN-ASH-CHA)
IPv6 Probes: 68

Outbound spoofing summary (from the client to our server)

Source address type IPv4 IPv6

Private - RFC1918 or ULA rewritten ✔ received

Routable rewritten ✔ received

Largest spoofable neighbor prefix length none /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	rewritten	✔	received
Routable	rewritten	✔	received
Largest spoofable neighbor prefix length	none	/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 which rewrites the source addresses of the test traffic. To test your provider's network further, you must remove the NAT/firewall/router and connect directly.

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 (192.136.136.x/24) can spoof 0 neighboring addresses

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

192.136.136.x/24 /31 10745 rewritten

192.136.136.x/24 /30 10745 rewritten

192.136.136.x/24 /29 10745 rewritten

192.136.136.x/24 /28 10745 rewritten

192.136.136.x/24 /27 10745 rewritten

192.136.136.x/24 /26 10745 rewritten

192.136.136.x/24 /25 10745 rewritten

192.136.136.x/24 /24 10745 rewritten

192.136.137.x/24 /23 UNROUTED rewritten

192.136.138.x/24 /22 UNROUTED rewritten

192.136.140.x/24 /21 46375 rewritten

192.136.128.x/24 /20 UNROUTED rewritten

192.136.152.x/24 /19 UNROUTED rewritten

192.136.168.x/24 /18 33728 rewritten

192.136.200.x/24 /17 11427 rewritten

192.136.8.x/24 /16 UNROUTED rewritten

192.137.136.x/24 /15 UNROUTED rewritten

192.138.136.x/24 /14 UNROUTED rewritten

192.140.136.x/24 /13 UNROUTED rewritten

192.128.136.x/24 /12 UNROUTED rewritten

192.152.136.x/24 /11 UNROUTED rewritten

192.168.136.x/24 /10 UNROUTED rewritten

192.200.136.x/24 /9 36001 rewritten

192.8.136.x/24 /8 36224 rewritten

Meaning of status in Received column:

rewritten The source address of the probe packets we received differs from the spoofed address. It appears that an intermediate device is rewriting your packet headers.

Spoofed source address (anon)	Prefix Length	ASN of spoofed source address	Received
192.136.136.x/24	/31	10745	rewritten
192.136.136.x/24	/30	10745	rewritten
192.136.136.x/24	/29	10745	rewritten
192.136.136.x/24	/28	10745	rewritten
192.136.136.x/24	/27	10745	rewritten
192.136.136.x/24	/26	10745	rewritten
192.136.136.x/24	/25	10745	rewritten
192.136.136.x/24	/24	10745	rewritten
192.136.137.x/24	/23	UNROUTED	rewritten
192.136.138.x/24	/22	UNROUTED	rewritten
192.136.140.x/24	/21	46375	rewritten
192.136.128.x/24	/20	UNROUTED	rewritten
192.136.152.x/24	/19	UNROUTED	rewritten
192.136.168.x/24	/18	33728	rewritten
192.136.200.x/24	/17	11427	rewritten
192.136.8.x/24	/16	UNROUTED	rewritten
192.137.136.x/24	/15	UNROUTED	rewritten
192.138.136.x/24	/14	UNROUTED	rewritten
192.140.136.x/24	/13	UNROUTED	rewritten
192.128.136.x/24	/12	UNROUTED	rewritten
192.152.136.x/24	/11	UNROUTED	rewritten
192.168.136.x/24	/10	UNROUTED	rewritten
192.200.136.x/24	/9	36001	rewritten
192.8.136.x/24	/8	36224	rewritten

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 2001:40b0:7500:280::5458:517a yes
2001:4978:1fb:6400::d2 2001:40b0:7500:280::5458:517a yes
2001:49aa:111:aa00::11 2001:40b0:7500:280::5458:517a yes
fd11:1111:1111::1111 2001:40b0:7500:280::5458:517a no
2001:48d0:101:501::159 2001:410:102:1::78 yes
2001:4978:1fb:6400::d2 2001:410:102:1::78 yes
2001:49aa:111:aa00::11 2001:410:102:1::78 yes
fd11:1111:1111::1111 2001:410:102:1::78 no
2001:48d0:101:501::159 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::159 2001:48d0:101:501::247 yes
2001:4978:1fb:6400::d2 2001:48d0:101:501::247 yes
2001:49aa:111:aa00::11 2001:48d0:101:501::247 yes
fd11:1111:1111::1111 2001:48d0:101:501::247 yes
2001:48d0:101:501::159 2001:610:510:115:192:42:115:98 yes
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 yes
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 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::159 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 no
2001:48d0:101:501::159 2001:df0:4:800:21c:c0ff:feb2:ad5f yes
2001:4978:1fb:6400::d2 2001:df0:4:800:21c:c0ff:feb2:ad5f yes
2001:49aa:111:aa00::11 2001:df0:4:800:21c:c0ff:feb2:ad5f yes
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 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 no

Spoofed source address	Destination	Received
2001:48d0:101:501::159	2001:40b0:7500:280::5458:517a	yes
2001:4978:1fb:6400::d2	2001:40b0:7500:280::5458:517a	yes
2001:49aa:111:aa00::11	2001:40b0:7500:280::5458:517a	yes
fd11:1111:1111::1111	2001:40b0:7500:280::5458:517a	no
2001:48d0:101:501::159	2001:410:102:1::78	yes
2001:4978:1fb:6400::d2	2001:410:102:1::78	yes
2001:49aa:111:aa00::11	2001:410:102:1::78	yes
fd11:1111:1111::1111	2001:410:102:1::78	no
2001:48d0:101:501::159	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::159	2001:48d0:101:501::247	yes
2001:4978:1fb:6400::d2	2001:48d0:101:501::247	yes
2001:49aa:111:aa00::11	2001:48d0:101:501::247	yes
fd11:1111:1111::1111	2001:48d0:101:501::247	yes
2001:48d0:101:501::159	2001:610:510:115:192:42:115:98	yes
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	yes
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	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::159	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	no
2001:48d0:101:501::159	2001:df0:4:800:21c:c0ff:feb2:ad5f	yes
2001:4978:1fb:6400::d2	2001:df0:4:800:21c:c0ff:feb2:ad5f	yes
2001:49aa:111:aa00::11	2001:df0:4:800:21c:c0ff:feb2:ad5f	yes
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	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	no

IPv6 Adjacent Netblock Testing:

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

2001:500:1xx::/40 /120 10745 yes

2001:500:1xx::/40 /112 10745 yes

2001:500:1xx::/40 /104 10745 yes

2001:500:1xx::/40 /96 10745 yes

2001:500:1xx::/40 /88 10745 yes

2001:500:1xx::/40 /80 10745 yes

2001:500:1xx::/40 /72 10745 yes

2001:500:1xx::/40 /64 10745 yes

2001:500:1xx::/40 /56 10745 yes

2001:500:1xx::/40 /48 10745 yes

2001:500:1xx::/40 /40 UNROUTED yes

2001:500:81xx::/40 /32 UNROUTED yes

2001:580:1xx::/40 /24 1798 yes

2001:8500:1xx::/40 /16 1221 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
2001:500:1xx::/40	/120	10745	yes
2001:500:1xx::/40	/112	10745	yes
2001:500:1xx::/40	/104	10745	yes
2001:500:1xx::/40	/96	10745	yes
2001:500:1xx::/40	/88	10745	yes
2001:500:1xx::/40	/80	10745	yes
2001:500:1xx::/40	/72	10745	yes
2001:500:1xx::/40	/64	10745	yes
2001:500:1xx::/40	/56	10745	yes
2001:500:1xx::/40	/48	10745	yes
2001:500:1xx::/40	/40	UNROUTED	yes
2001:500:81xx::/40	/32	UNROUTED	yes
2001:580:1xx::/40	/24	1798	yes
2001:8500:1xx::/40	/16	1221	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)