Session Report

Summary:

Test run at: 2022-04-20 00:00:18 GMT
Client Prefix (v4): 5.1.72.x/24
Client AS (v4): 34549 (MEER-AS)
IPv4 Probes: 60
Client Prefix (v6): 2a00:f820:5xx::/40
Client AS (v6): 34549 (MEER-AS)
IPv6 Probes: 56

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	/8		/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.

IPv4 Adjacent Netblock Testing:

Your host (5.1.72.x/24) can spoof 16777215 neighboring addresses (within your /8 prefix)

Spoofed source address (anon)	Prefix Length	ASN of spoofed source address	Received
5.1.72.x/24	/31	34549	yes
5.1.72.x/24	/30	34549	yes
5.1.72.x/24	/29	34549	yes
5.1.72.x/24	/28	34549	yes
5.1.72.x/24	/27	34549	yes
5.1.72.x/24	/26	34549	yes
5.1.72.x/24	/25	34549	yes
5.1.72.x/24	/24	34549	yes
5.1.73.x/24	/23	205948	yes
5.1.74.x/24	/22	34549	yes
5.1.76.x/24	/21	34549	yes
5.1.64.x/24	/20	34549	yes
5.1.88.x/24	/19	24679	yes
5.1.104.x/24	/18	198735	yes
5.1.8.x/24	/17	3326	yes
5.1.200.x/24	/16	12638	yes
5.0.72.x/24	/15	29256	yes
5.3.72.x/24	/14	39028	yes
5.5.72.x/24	/13	6805	yes
5.9.72.x/24	/12	24940	yes
5.17.72.x/24	/11	41733	yes
5.33.72.x/24	/10	9158	yes
5.65.72.x/24	/9	5607	yes
5.129.72.x/24	/8	31200	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 10 IP hop(s).

IPv6 probes:

Spoofed source address	Destination	Received
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	2001:770:1c:7:225:90ff:fe0c:acb4	yes
2001:4978:1fb:6400::d2	2001:770:1c:7:225:90ff:fe0c:acb4	yes
2001:49aa:111:aa00::11	2001:770:1c:7:225:90ff:fe0c:acb4	yes
fd11:1111:1111::1111	2001:770:1c:7:225:90ff:fe0c:acb4	no

IPv6 Adjacent Netblock Testing:

Spoofed source address (anon)	Prefix Length	ASN of spoofed source address	Received
2a00:f820:5xx::/40	/120	34549	yes
2a00:f820:5xx::/40	/112	34549	yes
2a00:f820:5xx::/40	/104	34549	yes
2a00:f820:5xx::/40	/96	34549	yes
2a00:f820:5xx::/40	/88	34549	yes
2a00:f820:5xx::/40	/80	34549	yes
2a00:f820:5xx::/40	/72	34549	yes
2a00:f820:5xx::/40	/64	34549	yes
2a00:f820:5xx::/40	/56	34549	yes
2a00:f820:5xx::/40	/48	34549	yes
2a00:f820:5xx::/40	/40	34549	yes
2a00:f820:85xx::/40	/32	34549	yes
2a00:f8a0:5xx::/40	/24	UNROUTED	yes
2a00:7820:5xx::/40	/16	34863	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)

Summary:

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

Feedback:

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