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Session Report

Summary:
Test run at: 2023-03-26 04:10:31 GMT
Client Prefix (v4): 128.164.13.x/24
Client AS (v4): 11039 (GWU)
IPv4 Probes: 60
Client Prefix (v6): 2606:69c0:51xx::/40
Client AS (v6): 11039 (GWU)
IPv6 Probes: 52
Outbound spoofing summary (from the client to our server)
Source address type IPv4IPv6
Private - RFC1918 or ULA blockedunknown
Routable blockedunknown
Largest spoofable neighbor prefix length /24none
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 (128.164.13.x/24) can spoof 255 neighboring addresses (within your /24 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
128.164.13.x/24/3111039yes
128.164.13.x/24/3011039yes
128.164.13.x/24/2911039yes
128.164.13.x/24/2811039yes
128.164.13.x/24/2711039yes
128.164.13.x/24/2611039yes
128.164.13.x/24/2511039yes
128.164.13.x/24/2411039yes
128.164.12.x/24/2311039no
128.164.15.x/24/2211039no
128.164.9.x/24/2111039no
128.164.5.x/24/2011039no
128.164.29.x/24/1911039no
128.164.45.x/24/1811039no
128.164.77.x/24/1711039no
128.164.141.x/24/1611039no
128.165.13.x/24/1568no
128.166.13.x/24/14UNROUTEDno
128.160.13.x/24/13668no
128.172.13.x/24/1216643no
128.180.13.x/24/116522no
128.132.13.x/24/10668no
128.228.13.x/24/931822no
128.36.13.x/24/829no

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 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 Adjacent Netblock Testing:
Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
2606:69c0:51xx::/40/12011039no
2606:69c0:51xx::/40/11211039no
2606:69c0:51xx::/40/10411039no
2606:69c0:51xx::/40/9611039no
2606:69c0:51xx::/40/8811039no
2606:69c0:51xx::/40/8011039no
2606:69c0:51xx::/40/7211039no
2606:69c0:51xx::/40/6411039no
2606:69c0:51xx::/40/5611039no
2606:69c0:51xx::/40/4811039no
2606:69c0:51xx::/40/4011039no
2606:69c0:d1xx::/40/32UNROUTEDno
2606:6940:51xx::/40/24UNROUTEDno
2606:e9c0:51xx::/40/16UNROUTEDno

Meaning of status in Received column:

noPackets spoofed from adjacent netblock were not received, probably due to blocking
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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