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Session Report

Summary:
Test run at: 2022-11-30 16:43:17 GMT
Client Prefix (v4): 46.30.64.x/24
Client AS (v4): 28905 (BECOLINK-AS)
IPv4 Probes: 60
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 blocked
Routable blocked
Largest spoofable neighbor prefix length /21
Spoof status key
receivedSpoofed packet was received.Pattern of tests from this IP block indicates a switch from allowing spoofing to blocking it.
rewrittenSpoofed packet was received, but the source address was changed en route.
blockedSpoofed packet was not received, but unspoofed packet was.
unknownNeither 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 (46.30.64.x/24) can spoof 2047 neighboring addresses (within your /21 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
46.30.64.x/24/3128905yes
46.30.64.x/24/3028905yes
46.30.64.x/24/2928905yes
46.30.64.x/24/2828905yes
46.30.64.x/24/2728905yes
46.30.64.x/24/2628905yes
46.30.64.x/24/2528905yes
46.30.64.x/24/2428905yes
46.30.65.x/24/2328905yes
46.30.66.x/24/2228905yes
46.30.68.x/24/2128905yes
46.30.72.x/24/2041431natblock
46.30.80.x/24/1943503natblock
46.30.96.x/24/1856637natblock
46.30.0.x/24/1757667natblock
46.30.192.x/24/1651489natblock
46.31.64.x/24/15209260natblock
46.28.64.x/24/1415626natblock
46.26.64.x/24/1312430natblock
46.22.64.x/24/12UNROUTEDnatblock
46.14.64.x/24/113303natblock
46.62.64.x/24/1042277natblock
46.94.64.x/24/93320natblock
46.158.64.x/24/812389natblock

Meaning of status in Received column:

yesPackets spoofed from adjacent netblock were received (but that netblock is within the source AS)
natblockSpoofed probe packets appear to be blocked by your local NAT or firewall rather than being rewritten with a public source address.

IPv4 Outbound Filtering Depth:

The tracefilter test found your host able to spoof routable, non-adjacent source addresses through the first 5 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.
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