Logo

Session Report

Summary:
Test run at: 2022-05-21 10:50:54 GMT
Client Prefix (v4): 42.112.20.x/24
Client AS (v4): 18403 (FPT-AS-AP)
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 /24
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 (42.112.20.x/24) can spoof 255 neighboring addresses (within your /24 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
42.112.20.x/24/3118403yes
42.112.20.x/24/3018403yes
42.112.20.x/24/2918403yes
42.112.20.x/24/2818403yes
42.112.20.x/24/2718403yes
42.112.20.x/24/2618403yes
42.112.20.x/24/2518403yes
42.112.20.x/24/2418403yes
42.112.21.x/24/2318403no
42.112.22.x/24/2218403no
42.112.16.x/24/2118403no
42.112.28.x/24/2018403no
42.112.4.x/24/1918403no
42.112.52.x/24/1818403no
42.112.84.x/24/1718403no
42.112.148.x/24/1618403no
42.113.20.x/24/1518403no
42.114.20.x/24/1418403no
42.116.20.x/24/1318403no
42.120.20.x/24/1237963no
42.96.20.x/24/11UNROUTEDno
42.80.20.x/24/1017638no
42.48.20.x/24/94837no
42.240.20.x/24/8UNROUTEDno

Meaning of status in Received column:

noPackets spoofed from adjacent netblock were not received, probably due to blocking
yesPackets spoofed from adjacent netblock were received (but that netblock is within the source AS)

IPv4 Outbound Filtering Depth:

The tracefilter test found your host able to spoof routable, non-adjacent source addresses through the first 1 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.
Last Modified