Session Report

| Spoofer Project Page Download Client Software FAQ API Notifications |

| Data: Stats Summary Recent Tests Remediation Results by AS Results by Country Results by Provider |

Summary:

Test run at: 2024-11-01 09:13:09 GMT
Client Prefix (v4): 45.83.205.x/24
Client AS (v4): 211588
IPv4 Probes: 69
Client Prefix (v6): 2a07:e345:ffxx::/40
Client AS (v6): 211588
IPv6 Probes: 68

Outbound spoofing summary (from the client to our server)

Source address type IPv4 IPv6

Private - RFC1918 or ULA unknown received

Routable unknown received

Largest spoofable neighbor prefix length none /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.

Outbound spoofing summary (from the client to our server)
Source address type	IPv4	IPv6
Private - RFC1918 or ULA	unknown	received
Routable	unknown	received
Largest spoofable neighbor prefix length	none	/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 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 (45.83.205.x/24) can spoof 0 neighboring addresses

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

45.83.205.x/24 /31 211588 natblock

45.83.205.x/24 /30 211588 natblock

45.83.205.x/24 /29 211588 natblock

45.83.205.x/24 /28 211588 natblock

45.83.205.x/24 /27 211588 natblock

45.83.205.x/24 /26 211588 natblock

45.83.205.x/24 /25 211588 natblock

45.83.205.x/24 /24 211588 natblock

45.83.204.x/24 /23 30848 natblock

45.83.207.x/24 /22 142299 natblock

45.83.201.x/24 /21 42831 natblock

45.83.197.x/24 /20 UNROUTED natblock

45.83.221.x/24 /19 39351 natblock

45.83.237.x/24 /18 134835 natblock

45.83.141.x/24 /17 44477 natblock

45.83.77.x/24 /16 5413 natblock

45.82.205.x/24 /15 57878 natblock

45.81.205.x/24 /14 60456 natblock

45.87.205.x/24 /13 209196 natblock

45.91.205.x/24 /12 208608 natblock

45.67.205.x/24 /11 207364 natblock

45.115.205.x/24 /10 397332 natblock

45.19.205.x/24 /9 7018 natblock

45.211.205.x/24 /8 UNROUTED natblock

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.

Spoofed source address (anon)	Prefix Length	ASN of spoofed source address	Received
45.83.205.x/24	/31	211588	natblock
45.83.205.x/24	/30	211588	natblock
45.83.205.x/24	/29	211588	natblock
45.83.205.x/24	/28	211588	natblock
45.83.205.x/24	/27	211588	natblock
45.83.205.x/24	/26	211588	natblock
45.83.205.x/24	/25	211588	natblock
45.83.205.x/24	/24	211588	natblock
45.83.204.x/24	/23	30848	natblock
45.83.207.x/24	/22	142299	natblock
45.83.201.x/24	/21	42831	natblock
45.83.197.x/24	/20	UNROUTED	natblock
45.83.221.x/24	/19	39351	natblock
45.83.237.x/24	/18	134835	natblock
45.83.141.x/24	/17	44477	natblock
45.83.77.x/24	/16	5413	natblock
45.82.205.x/24	/15	57878	natblock
45.81.205.x/24	/14	60456	natblock
45.87.205.x/24	/13	209196	natblock
45.91.205.x/24	/12	208608	natblock
45.67.205.x/24	/11	207364	natblock
45.115.205.x/24	/10	397332	natblock
45.19.205.x/24	/9	7018	natblock
45.211.205.x/24	/8	UNROUTED	natblock

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 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 2001:770:1c: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
2001:48d0:101:501::159 2607:8400:2880:4::80df:9d0d yes
2001:4978:1fb:6400::d2 2607:8400:2880:4::80df:9d0d yes
2001:49aa:111:aa00::11 2607:8400:2880:4::80df:9d0d yes
fd11:1111:1111::1111 2607:8400:2880:4::80df:9d0d no
2001:48d0:101:501::159 2607:f278:2:13:da3a:ddff:fe30:ce14 yes
2001:4978:1fb:6400::d2 2607:f278:2:13:da3a:ddff:fe30:ce14 yes
2001:49aa:111:aa00::11 2607:f278:2:13:da3a:ddff:fe30:ce14 yes
fd11:1111:1111::1111 2607:f278:2:13:da3a:ddff:fe30:ce14 yes

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	2001:770:1c: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
2001:48d0:101:501::159	2607:8400:2880:4::80df:9d0d	yes
2001:4978:1fb:6400::d2	2607:8400:2880:4::80df:9d0d	yes
2001:49aa:111:aa00::11	2607:8400:2880:4::80df:9d0d	yes
fd11:1111:1111::1111	2607:8400:2880:4::80df:9d0d	no
2001:48d0:101:501::159	2607:f278:2:13:da3a:ddff:fe30:ce14	yes
2001:4978:1fb:6400::d2	2607:f278:2:13:da3a:ddff:fe30:ce14	yes
2001:49aa:111:aa00::11	2607:f278:2:13:da3a:ddff:fe30:ce14	yes
fd11:1111:1111::1111	2607:f278:2:13:da3a:ddff:fe30:ce14	yes

IPv6 Adjacent Netblock Testing:

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

2a07:e345:ffxx::/40 /120 211588 yes

2a07:e345:ffxx::/40 /112 211588 yes

2a07:e345:ffxx::/40 /104 211588 yes

2a07:e345:ffxx::/40 /96 211588 yes

2a07:e345:ffxx::/40 /88 211588 yes

2a07:e345:ffxx::/40 /80 211588 yes

2a07:e345:ffxx::/40 /72 211588 yes

2a07:e345:ffxx::/40 /64 211588 yes

2a07:e345:ffxx::/40 /56 211588 yes

2a07:e345:ffxx::/40 /48 211588 yes

2a07:e345:ffxx::/40 /40 UNROUTED yes

2a07:e345:7fxx::/40 /32 UNROUTED yes

2a07:e3c5:ffxx::/40 /24 UNROUTED yes

2a07:6345:ffxx::/40 /16 UNROUTED yes

Meaning of status in Received column:

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
2a07:e345:ffxx::/40	/120	211588	yes
2a07:e345:ffxx::/40	/112	211588	yes
2a07:e345:ffxx::/40	/104	211588	yes
2a07:e345:ffxx::/40	/96	211588	yes
2a07:e345:ffxx::/40	/88	211588	yes
2a07:e345:ffxx::/40	/80	211588	yes
2a07:e345:ffxx::/40	/72	211588	yes
2a07:e345:ffxx::/40	/64	211588	yes
2a07:e345:ffxx::/40	/56	211588	yes
2a07:e345:ffxx::/40	/48	211588	yes
2a07:e345:ffxx::/40	/40	UNROUTED	yes
2a07:e345:7fxx::/40	/32	UNROUTED	yes
2a07:e3c5:ffxx::/40	/24	UNROUTED	yes
2a07:6345:ffxx::/40	/16	UNROUTED	yes

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.