Session Report

Summary:

Test run at: 2016-08-22 10:41:43 GMT
Client Prefix (v4): 77.72.227.x/24
Client AS (v4): 8674 (NETNOD-IX)
IPv4 Probes: 90
Client Prefix (v6): 2a01:3f0:xx::/40
Client AS (v6): 8674 (NETNOD-IX)
IPv6 Probes: 63

Outbound spoofing summary (from the client to our server)
Source address type	IPv4		IPv6
Private - RFC1918 or ULA	✔	received	✔	received
Routable	✔	received	✔	received
Largest spoofable neighbor prefix length	/8		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 (77.72.227.x/24) can spoof 16777215 neighboring addresses (within your /8 prefix)

Spoofed source address (anon)	Prefix Length	ASN of spoofed source address	Received
77.72.227.x/24	/31	8674	yes
77.72.227.x/24	/30	8674	yes
77.72.227.x/24	/29	8674	yes
77.72.227.x/24	/28	8674	yes
77.72.227.x/24	/27	8674	yes
77.72.227.x/24	/26	8674	yes
77.72.227.x/24	/25	8674	yes
77.72.227.x/24	/24	8674	yes
77.72.226.x/24	/23	8674	yes
77.72.225.x/24	/22	8674	yes
77.72.231.x/24	/21	8674	yes
77.72.235.x/24	/20	UNROUTED	yes
77.72.243.x/24	/19	43053	yes
77.72.195.x/24	/18	12835	yes
77.72.163.x/24	/17	33890	yes
77.72.99.x/24	/16	42303	yes
77.73.227.x/24	/15	41960	yes
77.74.227.x/24	/14	43179	yes
77.76.227.x/24	/13	8823	yes
77.64.227.x/24	/12	16202	yes
77.88.227.x/24	/11	61297	yes
77.104.227.x/24	/10	39906	yes
77.8.227.x/24	/9	6805	yes
77.200.227.x/24	/8	15557	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)

IPv4 Outbound Filtering Depth:

The tracefilter test found your host able to spoof routable, non-adjacent source addresses through the first 16 IP hop(s).

IPv6 probes:

Spoofed source address	Destination	Received
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
2001:4978:1fb: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	yes
2001:4978:1fb:6400::d2	2001:410:90ff::5	yes
2001:49aa:111:aa00::11	2001:410:90ff::5	yes
fd11:1111:1111::1111	2001:410:90ff::5	yes
2001:4978:1fb:6400::d2	2001:468:d01:103::80df:9d08	yes
2001:49aa:111:aa00::11	2001:468:d01:103::80df:9d08	no
fd11:1111:1111::1111	2001:468:d01:103::80df:9d08	no
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
2001:4978:1fb: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
2001:4978:1fb:6400::d2	2001:630:212:225:225:90ff:fe0c:45a6	yes
2001:49aa:111:aa00::11	2001:630:212:225:225:90ff:fe0c:45a6	yes
fd11:1111:1111::1111	2001:630:212:225:225:90ff:fe0c:45a6	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
2001:4978:1fb: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

Summary:

The results from all tests are aggregated to produce a summary "State of IP Spoofing" report.

Feedback:

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