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: 2022-09-02 11:06:48 GMT
Client Prefix (v4): 185.193.126.x/24
Client AS (v4): 39287 (abstract)
IPv4 Probes: 60
Client Prefix (v6): 2a0a:3840:13xx::/40
Client AS (v6): 39287 (abstract)
IPv6 Probes: 52

Outbound spoofing summary (from the client to our server)

Source address type IPv4 IPv6

Private - RFC1918 or ULA blocked blocked

Routable received received

Largest spoofable neighbor prefix length /9 /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	blocked	blocked
Routable	received	received
Largest spoofable neighbor prefix length	/9	/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.

IPv4 Adjacent Netblock Testing:

Your host (185.193.126.x/24) can spoof 8388607 neighboring addresses (within your /9 prefix)

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

185.193.126.x/24 /31 39287 yes

185.193.126.x/24 /30 39287 yes

185.193.126.x/24 /29 39287 yes

185.193.126.x/24 /28 39287 yes

185.193.126.x/24 /27 39287 yes

185.193.126.x/24 /26 39287 yes

185.193.126.x/24 /25 39287 yes

185.193.126.x/24 /24 39287 yes

185.193.127.x/24 /23 39287 yes

185.193.124.x/24 /22 54990 yes

185.193.122.x/24 /21 42903 yes

185.193.118.x/24 /20 202228 yes

185.193.110.x/24 /19 UNROUTED no

185.193.94.x/24 /18 52157 yes

185.193.62.x/24 /17 202635 yes

185.193.254.x/24 /16 50316 yes

185.192.126.x/24 /15 200514 yes

185.195.126.x/24 /14 204239 yes

185.197.126.x/24 /13 57834 yes

185.201.126.x/24 /12 12996 yes

185.209.126.x/24 /11 24940 yes

185.225.126.x/24 /10 174 yes

185.129.126.x/24 /9 50247 yes

185.65.126.x/24 /8 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
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
185.193.126.x/24	/31	39287	yes
185.193.126.x/24	/30	39287	yes
185.193.126.x/24	/29	39287	yes
185.193.126.x/24	/28	39287	yes
185.193.126.x/24	/27	39287	yes
185.193.126.x/24	/26	39287	yes
185.193.126.x/24	/25	39287	yes
185.193.126.x/24	/24	39287	yes
185.193.127.x/24	/23	39287	yes
185.193.124.x/24	/22	54990	yes
185.193.122.x/24	/21	42903	yes
185.193.118.x/24	/20	202228	yes
185.193.110.x/24	/19	UNROUTED	no
185.193.94.x/24	/18	52157	yes
185.193.62.x/24	/17	202635	yes
185.193.254.x/24	/16	50316	yes
185.192.126.x/24	/15	200514	yes
185.195.126.x/24	/14	204239	yes
185.197.126.x/24	/13	57834	yes
185.201.126.x/24	/12	12996	yes
185.209.126.x/24	/11	24940	yes
185.225.126.x/24	/10	174	yes
185.129.126.x/24	/9	50247	yes
185.65.126.x/24	/8	UNROUTED	no

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 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 yes
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 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 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

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	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	yes
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	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	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

2a0a:3840:13xx::/40 /120 39287 yes

2a0a:3840:13xx::/40 /112 39287 yes

2a0a:3840:13xx::/40 /104 39287 yes

2a0a:3840:13xx::/40 /96 39287 yes

2a0a:3840:13xx::/40 /88 39287 yes

2a0a:3840:13xx::/40 /80 39287 yes

2a0a:3840:13xx::/40 /72 39287 yes

2a0a:3840:13xx::/40 /64 39287 yes

2a0a:3840:13xx::/40 /56 39287 no

2a0a:3840:13xx::/40 /48 39287 no

2a0a:3840:13xx::/40 /40 39287 no

2a0a:3840:93xx::/40 /32 39287 no

2a0a:38c0:13xx::/40 /24 UNROUTED no

2a0a:b840:13xx::/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
2a0a:3840:13xx::/40	/120	39287	yes
2a0a:3840:13xx::/40	/112	39287	yes
2a0a:3840:13xx::/40	/104	39287	yes
2a0a:3840:13xx::/40	/96	39287	yes
2a0a:3840:13xx::/40	/88	39287	yes
2a0a:3840:13xx::/40	/80	39287	yes
2a0a:3840:13xx::/40	/72	39287	yes
2a0a:3840:13xx::/40	/64	39287	yes
2a0a:3840:13xx::/40	/56	39287	no
2a0a:3840:13xx::/40	/48	39287	no
2a0a:3840:13xx::/40	/40	39287	no
2a0a:3840:93xx::/40	/32	39287	no
2a0a:38c0:13xx::/40	/24	UNROUTED	no
2a0a:b840:13xx::/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.

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