Session Report

Summary:

Test run at: 2022-03-03 23:01:57 GMT
Client Prefix (v4): 45.33.55.x/24
Client AS (v4): 63949 (LINODE-AP)
IPv4 Probes: 60
Client Prefix (v6): 2600:3c01:xx::/40
Client AS (v6): 63949 (LINODE-AP)
IPv6 Probes: 56

Outbound spoofing summary (from the client to our server)
Source address type	IPv4		IPv6
Private - RFC1918 or ULA	blocked		blocked
Routable	blocked		blocked
Largest spoofable neighbor prefix length	none		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 Adjacent Netblock Testing:

Your host (45.33.55.x/24) can spoof 0 neighboring addresses

Spoofed source address (anon)	Prefix Length	ASN of spoofed source address	Received
45.33.55.x/24	/31	63949	no
45.33.55.x/24	/30	63949	no
45.33.55.x/24	/29	63949	no
45.33.55.x/24	/28	63949	no
45.33.55.x/24	/27	63949	no
45.33.55.x/24	/26	63949	no
45.33.55.x/24	/25	63949	no
45.33.55.x/24	/24	63949	no
45.33.54.x/24	/23	63949	no
45.33.53.x/24	/22	63949	no
45.33.51.x/24	/21	63949	no
45.33.63.x/24	/20	63949	no
45.33.39.x/24	/19	63949	no
45.33.23.x/24	/18	63949	no
45.33.119.x/24	/17	63949	no
45.33.183.x/24	/16	UNROUTED	no
45.32.55.x/24	/15	20473	no
45.35.55.x/24	/14	40676	no
45.37.55.x/24	/13	11426	no
45.41.55.x/24	/12	UNROUTED	no
45.49.55.x/24	/11	20001	no
45.1.55.x/24	/10	UNROUTED	no
45.97.55.x/24	/9	37069	no
45.161.55.x/24	/8	268448	no

Meaning of status in Received column:

no	Packets spoofed from adjacent netblock were not received, probably due to blocking

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 probes:

Spoofed source address	Destination	Received
2001:48d0:101:501::159	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::159	2001:48d0:101:501::247	no
2001:4978:1fb:6400::d2	2001:48d0:101:501::247	no
2001:49aa:111:aa00::11	2001:48d0:101:501::247	no
fd11:1111:1111::1111	2001:48d0:101:501::247	no
2001:48d0:101:501::159	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::159	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::159	2001:770:1c:7:225:90ff:fe0c:acb4	no
2001:4978:1fb:6400::d2	2001:770:1c:7:225:90ff:fe0c:acb4	no
2001:49aa:111:aa00::11	2001:770:1c:7:225:90ff:fe0c:acb4	no
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
2600:3c01:xx::/40	/120	63949	no
2600:3c01:xx::/40	/112	63949	no
2600:3c01:xx::/40	/104	63949	no
2600:3c01:xx::/40	/96	63949	no
2600:3c01:xx::/40	/88	63949	no
2600:3c01:xx::/40	/80	63949	no
2600:3c01:xx::/40	/72	63949	no
2600:3c01:xx::/40	/64	63949	no
2600:3c01:xx::/40	/56	63949	no
2600:3c01:xx::/40	/48	63949	no
2600:3c01:xx::/40	/40	63949	no
2600:3c01:80xx::/40	/32	63949	no
2600:3c81:xx::/40	/24	UNROUTED	no
2600:bc01:xx::/40	/16	398993	no

Meaning of status in Received column:

no	Packets spoofed from adjacent netblock were not received, probably due to blocking

Summary:

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

Feedback:

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