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: 2023-04-16 00:23:54 GMT
Client Prefix (v4): 185.47.254.x/24
Client AS (v4): 136258 (ONEPROVIDER-AS)
IPv4 Probes: 60

Outbound spoofing summary (from the client to our server)

Source address type IPv4

Private - RFC1918 ✔ received

Routable ✔ received

Largest spoofable neighbor prefix length 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
Private - RFC1918	✔	received
Routable	✔	received
Largest spoofable neighbor prefix length	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.

Warnings:

⚠️ This client appears to be multihomed and although its (IPv4) origin AS is 136258, our data suggest that only AS 7195 is allowing spoofed packets through.

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 (185.47.254.x/24) can spoof 0 neighboring addresses

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

185.47.254.x/24 /31 136258 no

185.47.254.x/24 /30 136258 no

185.47.254.x/24 /29 136258 no

185.47.254.x/24 /28 136258 no

185.47.254.x/24 /27 136258 no

185.47.254.x/24 /26 136258 no

185.47.254.x/24 /25 136258 no

185.47.254.x/24 /24 136258 no

185.47.255.x/24 /23 136258 no

185.47.252.x/24 /22 136258 no

185.47.250.x/24 /21 201596 no

185.47.246.x/24 /20 198066 no

185.47.238.x/24 /19 34756 no

185.47.222.x/24 /18 62099 no

185.47.190.x/24 /17 8661 no

185.47.126.x/24 /16 8823 no

185.46.254.x/24 /15 39093 no

185.45.254.x/24 /14 212976 no

185.43.254.x/24 /13 200845 no

185.39.254.x/24 /12 206063 no

185.63.254.x/24 /11 60064 no

185.15.254.x/24 /10 16246 no

185.111.254.x/24 /9 212866 no

185.175.254.x/24 /8 35444 no

Meaning of status in Received column:

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

Spoofed source address (anon)	Prefix Length	ASN of spoofed source address	Received
185.47.254.x/24	/31	136258	no
185.47.254.x/24	/30	136258	no
185.47.254.x/24	/29	136258	no
185.47.254.x/24	/28	136258	no
185.47.254.x/24	/27	136258	no
185.47.254.x/24	/26	136258	no
185.47.254.x/24	/25	136258	no
185.47.254.x/24	/24	136258	no
185.47.255.x/24	/23	136258	no
185.47.252.x/24	/22	136258	no
185.47.250.x/24	/21	201596	no
185.47.246.x/24	/20	198066	no
185.47.238.x/24	/19	34756	no
185.47.222.x/24	/18	62099	no
185.47.190.x/24	/17	8661	no
185.47.126.x/24	/16	8823	no
185.46.254.x/24	/15	39093	no
185.45.254.x/24	/14	212976	no
185.43.254.x/24	/13	200845	no
185.39.254.x/24	/12	206063	no
185.63.254.x/24	/11	60064	no
185.15.254.x/24	/10	16246	no
185.111.254.x/24	/9	212866	no
185.175.254.x/24	/8	35444	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).

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.