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: 2019-04-20 02:28:50 GMT
Client Prefix (v4): 168.0.96.x/24
Client AS (v4): 265234
IPv4 Probes: 116
Client Prefix (v6): 2804:2cac:ccxx::/40
Client AS (v6): 265234
IPv6 Probes: 84

Outbound spoofing summary (from the client to our server)

Source address type IPv4 IPv6

Private - RFC1918 or ULA rewritten blocked

Routable rewritten blocked

Largest spoofable neighbor prefix length none /64

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	blocked
Routable	rewritten	blocked
Largest spoofable neighbor prefix length	none	/64

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

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

168.0.96.x/24 /31 265234 rewritten

168.0.96.x/24 /30 265234 rewritten

168.0.96.x/24 /29 265234 rewritten

168.0.96.x/24 /28 265234 natblock

168.0.96.x/24 /27 265234 rewritten

168.0.96.x/24 /26 265234 rewritten

168.0.96.x/24 /25 265234 rewritten

168.0.96.x/24 /24 265234 natblock

168.0.97.x/24 /23 265234 rewritten

168.0.98.x/24 /22 265234 natblock

168.0.100.x/24 /21 265232 rewritten

168.0.104.x/24 /20 262557 rewritten

168.0.112.x/24 /19 265249 rewritten

168.0.64.x/24 /18 52864 rewritten

168.0.32.x/24 /17 265222 rewritten

168.0.224.x/24 /16 265260 rewritten

168.1.96.x/24 /15 36351 rewritten

168.2.96.x/24 /14 UNROUTED rewritten

168.4.96.x/24 /13 8 natblock

168.8.96.x/24 /12 3480 rewritten

168.16.96.x/24 /11 3479 rewritten

168.32.96.x/24 /10 1761 rewritten

168.64.96.x/24 /9 UNROUTED rewritten

168.128.96.x/24 /8 27435 natblock

Meaning of status in Received column:

natblock Spoofed probe packets appear to be blocked by your local NAT or firewall rather than being rewritten with a public source address.
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
168.0.96.x/24	/31	265234	rewritten
168.0.96.x/24	/30	265234	rewritten
168.0.96.x/24	/29	265234	rewritten
168.0.96.x/24	/28	265234	natblock
168.0.96.x/24	/27	265234	rewritten
168.0.96.x/24	/26	265234	rewritten
168.0.96.x/24	/25	265234	rewritten
168.0.96.x/24	/24	265234	natblock
168.0.97.x/24	/23	265234	rewritten
168.0.98.x/24	/22	265234	natblock
168.0.100.x/24	/21	265232	rewritten
168.0.104.x/24	/20	262557	rewritten
168.0.112.x/24	/19	265249	rewritten
168.0.64.x/24	/18	52864	rewritten
168.0.32.x/24	/17	265222	rewritten
168.0.224.x/24	/16	265260	rewritten
168.1.96.x/24	/15	36351	rewritten
168.2.96.x/24	/14	UNROUTED	rewritten
168.4.96.x/24	/13	8	natblock
168.8.96.x/24	/12	3480	rewritten
168.16.96.x/24	/11	3479	rewritten
168.32.96.x/24	/10	1761	rewritten
168.64.96.x/24	/9	UNROUTED	rewritten
168.128.96.x/24	/8	27435	natblock

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::142 2001:388:1:5001:21c:c0ff:fea2:4a3a no
2001:4978:1fb:6400::d2 2001:388:1:5001:21c:c0ff:fea2:4a3a no
2001:49aa:111:aa00::11 2001:388:1:5001:21c:c0ff:fea2:4a3a no
fd11:1111:1111::1111 2001:388:1:5001:21c:c0ff:fea2:4a3a no
2001:48d0:101:501::142 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::142 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::142 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::142 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::142 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::142 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::142 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::142 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::142	2001:388:1:5001:21c:c0ff:fea2:4a3a	no
2001:4978:1fb:6400::d2	2001:388:1:5001:21c:c0ff:fea2:4a3a	no
2001:49aa:111:aa00::11	2001:388:1:5001:21c:c0ff:fea2:4a3a	no
fd11:1111:1111::1111	2001:388:1:5001:21c:c0ff:fea2:4a3a	no
2001:48d0:101:501::142	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::142	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::142	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::142	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::142	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::142	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::142	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::142	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

2804:2cac:ccxx::/40 /120 265234 yes

2804:2cac:ccxx::/40 /112 265234 yes

2804:2cac:ccxx::/40 /104 265234 yes

2804:2cac:ccxx::/40 /96 265234 yes

2804:2cac:ccxx::/40 /88 265234 yes

2804:2cac:ccxx::/40 /80 265234 yes

2804:2cac:ccxx::/40 /72 265234 yes

2804:2cac:ccxx::/40 /64 265234 yes

2804:2cac:ccxx::/40 /56 265234 no

2804:2cac:ccxx::/40 /48 265234 no

2804:2cac:ccxx::/40 /40 265234 no

2804:2cac:4cxx::/40 /32 265234 no

2804:2c2c:ccxx::/40 /24 UNROUTED no

2804:acac:ccxx::/40 /16 UNROUTED no

Meaning of status in Received column:

no Packets spoofed from adjacent netblock were not received, probably due to blocking
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
2804:2cac:ccxx::/40	/120	265234	yes
2804:2cac:ccxx::/40	/112	265234	yes
2804:2cac:ccxx::/40	/104	265234	yes
2804:2cac:ccxx::/40	/96	265234	yes
2804:2cac:ccxx::/40	/88	265234	yes
2804:2cac:ccxx::/40	/80	265234	yes
2804:2cac:ccxx::/40	/72	265234	yes
2804:2cac:ccxx::/40	/64	265234	yes
2804:2cac:ccxx::/40	/56	265234	no
2804:2cac:ccxx::/40	/48	265234	no
2804:2cac:ccxx::/40	/40	265234	no
2804:2cac:4cxx::/40	/32	265234	no
2804:2c2c:ccxx::/40	/24	UNROUTED	no
2804:acac:ccxx::/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.

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

no	Packets spoofed from adjacent netblock were not received, probably due to blocking
yes	Packets spoofed from adjacent netblock were received (but that netblock is within the source AS)