Logo

Session Report

Summary:
Test run at: 2022-06-17 14:24:22 GMT
Client Prefix (v4): 37.0.9.x/24
Client AS (v4): 213035 (AS-SERVERION)
IPv4 Probes: 60
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 blocked
Routable received
Largest spoofable neighbor prefix length /11
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 (37.0.9.x/24) can spoof 2097151 neighboring addresses (within your /11 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
37.0.9.x/24/31213035yes
37.0.9.x/24/30213035yes
37.0.9.x/24/29213035yes
37.0.9.x/24/28213035yes
37.0.9.x/24/27213035yes
37.0.9.x/24/26213035yes
37.0.9.x/24/25213035yes
37.0.9.x/24/24213035yes
37.0.8.x/24/23211252yes
37.0.11.x/24/22211252yes
37.0.13.x/24/21213035yes
37.0.1.x/24/20198301yes
37.0.25.x/24/1950794no
37.0.41.x/24/1815547no
37.0.73.x/24/1735393no
37.0.137.x/24/161257no
37.1.9.x/24/1534456no
37.2.9.x/24/141257no
37.4.9.x/24/133209no
37.8.9.x/24/1212975no
37.16.9.x/24/1140509yes
37.32.9.x/24/10UNROUTEDno
37.64.9.x/24/915557no
37.128.9.x/24/812741no

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
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 unable to spoof routable, non-adjacent source addresses through even the first IP hop.
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