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: 2024-08-24 09:23:15 GMT
Client Prefix (v4): 143.202.100.x/24
Client AS (v4): 263152
IPv4 Probes: 69
Client Prefix (v6): 2804:1784:ffxx::/40
Client AS (v6): 263152
IPv6 Probes: 68

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 /30 /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	✔	blocked	✔	blocked
Largest spoofable neighbor prefix length	/30	/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 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 (143.202.100.x/24) can spoof 3 neighboring addresses (within your /30 prefix)

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

143.202.100.x/24 /31 263152 yes

143.202.100.x/24 /30 263152 yes

143.202.100.x/24 /29 263152 no

143.202.100.x/24 /28 263152 no

143.202.100.x/24 /27 263152 no

143.202.100.x/24 /26 263152 no

143.202.100.x/24 /25 263152 no

143.202.100.x/24 /24 263152 no

143.202.101.x/24 /23 263152 no

143.202.102.x/24 /22 263152 no

143.202.96.x/24 /21 264619 no

143.202.108.x/24 /20 262605 no

143.202.116.x/24 /19 263587 no

143.202.68.x/24 /18 28667 no

143.202.36.x/24 /17 264056 no

143.202.228.x/24 /16 264589 no

143.203.100.x/24 /15 UNROUTED no

143.200.100.x/24 /14 3128 no

143.206.100.x/24 /13 UNROUTED no

143.194.100.x/24 /12 367 no

143.218.100.x/24 /11 UNROUTED no

143.234.100.x/24 /10 786 no

143.138.100.x/24 /9 747 no

143.74.100.x/24 /8 721 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
143.202.100.x/24	/31	263152	yes
143.202.100.x/24	/30	263152	yes
143.202.100.x/24	/29	263152	no
143.202.100.x/24	/28	263152	no
143.202.100.x/24	/27	263152	no
143.202.100.x/24	/26	263152	no
143.202.100.x/24	/25	263152	no
143.202.100.x/24	/24	263152	no
143.202.101.x/24	/23	263152	no
143.202.102.x/24	/22	263152	no
143.202.96.x/24	/21	264619	no
143.202.108.x/24	/20	262605	no
143.202.116.x/24	/19	263587	no
143.202.68.x/24	/18	28667	no
143.202.36.x/24	/17	264056	no
143.202.228.x/24	/16	264589	no
143.203.100.x/24	/15	UNROUTED	no
143.200.100.x/24	/14	3128	no
143.206.100.x/24	/13	UNROUTED	no
143.194.100.x/24	/12	367	no
143.218.100.x/24	/11	UNROUTED	no
143.234.100.x/24	/10	786	no
143.138.100.x/24	/9	747	no
143.74.100.x/24	/8	721	no

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::159 2001:200:e000:2:225:90ff:fe0c:4684 no
2001:4978:1fb:6400::d2 2001:200:e000:2:225:90ff:fe0c:4684 no
2001:49aa:111:aa00::11 2001:200:e000:2:225:90ff:fe0c:4684 no
fd11:1111:1111::1111 2001:200:e000:2:225:90ff:fe0c:4684 no
2001:48d0:101:501::159 2001:40b0:7500:280::5458:517a no
2001:4978:1fb:6400::d2 2001:40b0:7500:280::5458:517a no
2001:49aa:111:aa00::11 2001:40b0:7500:280::5458:517a no
fd11:1111:1111::1111 2001:40b0:7500:280::5458:517a no
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 2001:630:212:225:225:90ff: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 2001:638:902:2000:ba27:ebff:fe86:2c51 no
2001:4978:1fb:6400::d2 2001:638:902:2000:ba27:ebff:fe86:2c51 no
2001:49aa:111:aa00::11 2001:638:902:2000:ba27:ebff:fe86:2c51 no
fd11:1111:1111::1111 2001:638:902:2000:ba27:ebff:fe86:2c51 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
2001:48d0:101:501::159 2607:8400:2880:4::80df:9d0d no
2001:4978:1fb:6400::d2 2607:8400:2880:4::80df:9d0d no
2001:49aa:111:aa00::11 2607:8400:2880:4::80df:9d0d no
fd11:1111:1111::1111 2607:8400:2880:4::80df:9d0d no
2001:48d0:101:501::159 2607:f278:2:13:da3a:ddff:fe30:ce14 no
2001:4978:1fb:6400::d2 2607:f278:2:13:da3a:ddff:fe30:ce14 no
2001:49aa:111:aa00::11 2607:f278:2:13:da3a:ddff:fe30:ce14 no
fd11:1111:1111::1111 2607:f278:2:13:da3a:ddff:fe30:ce14 no

Spoofed source address	Destination	Received
2001:48d0:101:501::159	2001:200:e000:2:225:90ff:fe0c:4684	no
2001:4978:1fb:6400::d2	2001:200:e000:2:225:90ff:fe0c:4684	no
2001:49aa:111:aa00::11	2001:200:e000:2:225:90ff:fe0c:4684	no
fd11:1111:1111::1111	2001:200:e000:2:225:90ff:fe0c:4684	no
2001:48d0:101:501::159	2001:40b0:7500:280::5458:517a	no
2001:4978:1fb:6400::d2	2001:40b0:7500:280::5458:517a	no
2001:49aa:111:aa00::11	2001:40b0:7500:280::5458:517a	no
fd11:1111:1111::1111	2001:40b0:7500:280::5458:517a	no
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	2001:630:212:225:225:90ff: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	2001:638:902:2000:ba27:ebff:fe86:2c51	no
2001:4978:1fb:6400::d2	2001:638:902:2000:ba27:ebff:fe86:2c51	no
2001:49aa:111:aa00::11	2001:638:902:2000:ba27:ebff:fe86:2c51	no
fd11:1111:1111::1111	2001:638:902:2000:ba27:ebff:fe86:2c51	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
2001:48d0:101:501::159	2607:8400:2880:4::80df:9d0d	no
2001:4978:1fb:6400::d2	2607:8400:2880:4::80df:9d0d	no
2001:49aa:111:aa00::11	2607:8400:2880:4::80df:9d0d	no
fd11:1111:1111::1111	2607:8400:2880:4::80df:9d0d	no
2001:48d0:101:501::159	2607:f278:2:13:da3a:ddff:fe30:ce14	no
2001:4978:1fb:6400::d2	2607:f278:2:13:da3a:ddff:fe30:ce14	no
2001:49aa:111:aa00::11	2607:f278:2:13:da3a:ddff:fe30:ce14	no
fd11:1111:1111::1111	2607:f278:2:13:da3a:ddff:fe30:ce14	no

IPv6 Adjacent Netblock Testing:

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

2804:1784:ffxx::/40 /120 263152 yes

2804:1784:ffxx::/40 /112 263152 yes

2804:1784:ffxx::/40 /104 263152 yes

2804:1784:ffxx::/40 /96 263152 yes

2804:1784:ffxx::/40 /88 263152 yes

2804:1784:ffxx::/40 /80 263152 yes

2804:1784:ffxx::/40 /72 263152 yes

2804:1784:ffxx::/40 /64 263152 yes

2804:1784:ffxx::/40 /56 263152 no

2804:1784:ffxx::/40 /48 263152 no

2804:1784:ffxx::/40 /40 263152 no

2804:1784:7fxx::/40 /32 263152 no

2804:1704:ffxx::/40 /24 263116 no

2804:9784:ffxx::/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
2804:1784:ffxx::/40	/120	263152	yes
2804:1784:ffxx::/40	/112	263152	yes
2804:1784:ffxx::/40	/104	263152	yes
2804:1784:ffxx::/40	/96	263152	yes
2804:1784:ffxx::/40	/88	263152	yes
2804:1784:ffxx::/40	/80	263152	yes
2804:1784:ffxx::/40	/72	263152	yes
2804:1784:ffxx::/40	/64	263152	yes
2804:1784:ffxx::/40	/56	263152	no
2804:1784:ffxx::/40	/48	263152	no
2804:1784:ffxx::/40	/40	263152	no
2804:1784:7fxx::/40	/32	263152	no
2804:1704:ffxx::/40	/24	263116	no
2804:9784:ffxx::/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 (but that netblock is within the source AS)