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: 2024-02-28 10:16:52 GMT
Client Prefix (v4): 31.185.100.x/24
Client AS (v4): 41327 (FIBERTELECOM-AS)
IPv4 Probes: 66
Client Prefix (v6): 2a03:b027:xx::/40
Client AS (v6): 41327 (FIBERTELECOM-AS)
IPv6 Probes: 56

Outbound spoofing summary (from the client to our server)

Source address type IPv4 IPv6

Private - RFC1918 or ULA blocked unknown

Routable blocked unknown

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.

Outbound spoofing summary (from the client to our server)
Source address type	IPv4	IPv6
Private - RFC1918 or ULA	blocked	unknown
Routable	blocked	unknown
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 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 (31.185.100.x/24) can spoof 0 neighboring addresses

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

31.185.100.x/24 /31 41327 sendto

31.185.100.x/24 /30 41327 sendto

31.185.100.x/24 /29 41327 sendto

31.185.100.x/24 /28 41327 sendto

31.185.100.x/24 /27 41327 sendto

31.185.100.x/24 /26 41327 sendto

31.185.100.x/24 /25 41327 sendto

31.185.100.x/24 /24 41327 sendto

31.185.101.x/24 /23 41327 sendto

31.185.102.x/24 /22 41327 sendto

31.185.96.x/24 /21 41327 sendto

31.185.108.x/24 /20 43847 sendto

31.185.116.x/24 /19 42560 sendto

31.185.68.x/24 /18 39642 natblock

31.185.36.x/24 /17 6871 sendto

31.185.228.x/24 /16 6871 sendto

31.184.100.x/24 /15 50266 sendto

31.187.100.x/24 /14 200685 sendto

31.189.100.x/24 /13 24608 sendto

31.177.100.x/24 /12 UNROUTED sendto

31.169.100.x/24 /11 62059 sendto

31.153.100.x/24 /10 6866 sendto

31.249.100.x/24 /9 3320 sendto

31.57.100.x/24 /8 31549 sendto

Meaning of status in Received column:

natblock Spoofed probe packets appear to be blocked by your local NAT or firewall rather than being rewritten with a public source address.
sendto The spoofer client was unable to send spoofed headers due to an operating system restriction.

Spoofed source address (anon)	Prefix Length	ASN of spoofed source address	Received
31.185.100.x/24	/31	41327	sendto
31.185.100.x/24	/30	41327	sendto
31.185.100.x/24	/29	41327	sendto
31.185.100.x/24	/28	41327	sendto
31.185.100.x/24	/27	41327	sendto
31.185.100.x/24	/26	41327	sendto
31.185.100.x/24	/25	41327	sendto
31.185.100.x/24	/24	41327	sendto
31.185.101.x/24	/23	41327	sendto
31.185.102.x/24	/22	41327	sendto
31.185.96.x/24	/21	41327	sendto
31.185.108.x/24	/20	43847	sendto
31.185.116.x/24	/19	42560	sendto
31.185.68.x/24	/18	39642	natblock
31.185.36.x/24	/17	6871	sendto
31.185.228.x/24	/16	6871	sendto
31.184.100.x/24	/15	50266	sendto
31.187.100.x/24	/14	200685	sendto
31.189.100.x/24	/13	24608	sendto
31.177.100.x/24	/12	UNROUTED	sendto
31.169.100.x/24	/11	62059	sendto
31.153.100.x/24	/10	6866	sendto
31.249.100.x/24	/9	3320	sendto
31.57.100.x/24	/8	31549	sendto

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 2001:48d0:101:501::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 2001:638:902:2000: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	2001:48d0:101:501::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	2001:638:902:2000: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

2a03:b027:xx::/40 /120 41327 sendto
2a03:b027:xx::/40 /112 41327 sendto
2a03:b027:xx::/40 /104 41327 sendto
2a03:b027:xx::/40 /96 41327 sendto
2a03:b027:xx::/40 /88 41327 sendto
2a03:b027:xx::/40 /80 41327 sendto
2a03:b027:xx::/40 /72 41327 sendto
2a03:b027:xx::/40 /64 41327 sendto
2a03:b027:xx::/40 /56 41327 sendto
2a03:b027:xx::/40 /48 41327 sendto
2a03:b027:xx::/40 /40 41327 sendto
2a03:b027:80xx::/40 /32 41327 sendto
2a03:b0a7:xx::/40 /24 UNROUTED sendto
2a03:3027:xx::/40 /16 UNROUTED sendto

Meaning of status in Received column:

sendto The spoofer client was unable to send spoofed headers due to an operating system restriction.

Spoofed source address (anon)	Prefix Length	ASN of spoofed source address	Received
2a03:b027:xx::/40	/120	41327	sendto
2a03:b027:xx::/40	/112	41327	sendto
2a03:b027:xx::/40	/104	41327	sendto
2a03:b027:xx::/40	/96	41327	sendto
2a03:b027:xx::/40	/88	41327	sendto
2a03:b027:xx::/40	/80	41327	sendto
2a03:b027:xx::/40	/72	41327	sendto
2a03:b027:xx::/40	/64	41327	sendto
2a03:b027:xx::/40	/56	41327	sendto
2a03:b027:xx::/40	/48	41327	sendto
2a03:b027:xx::/40	/40	41327	sendto
2a03:b027:80xx::/40	/32	41327	sendto
2a03:b0a7:xx::/40	/24	UNROUTED	sendto
2a03:3027:xx::/40	/16	UNROUTED	sendto

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.

natblock	Spoofed probe packets appear to be blocked by your local NAT or firewall rather than being rewritten with a public source address.
sendto	The spoofer client was unable to send spoofed headers due to an operating system restriction.