Session Report
Test run at: 2017-10-19 22:18:59 GMT
Client Prefix (v4): 137.164.83.x/24
Client AS (v4): 2152 (CSUNET-NW)
IPv4 Probes: 105
Outbound spoofing summary (from the client to our server) Source address type IPv4 Private - RFC1918 ✔ unknown Routable ✔ unknown 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:
- ⚠️ The spoofer client was unable to send spoofed headers due to an operating system restriction.
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 (137.164.83.x/24) can spoof 0 neighboring addresses
Spoofed source address (anon) Prefix
LengthASN of spoofed
source addressReceived 137.164.83.x/24 /31 2152 sendto 137.164.83.x/24 /30 2152 sendto 137.164.83.x/24 /29 2152 sendto 137.164.83.x/24 /28 2152 sendto 137.164.83.x/24 /27 2152 sendto 137.164.83.x/24 /26 2152 sendto 137.164.83.x/24 /25 2152 sendto 137.164.83.x/24 /24 2152 sendto 137.164.82.x/24 /23 2152 sendto 137.164.81.x/24 /22 2152 sendto 137.164.87.x/24 /21 2152 sendto 137.164.91.x/24 /20 2152 sendto 137.164.67.x/24 /19 2152 sendto 137.164.115.x/24 /18 2152 sendto 137.164.19.x/24 /17 2152 sendto 137.164.211.x/24 /16 2152 sendto 137.165.83.x/24 /15 11399 sendto 137.166.83.x/24 /14 58877 sendto 137.160.83.x/24 /13 3549 sendto 137.172.83.x/24 /12 UNROUTED sendto 137.180.83.x/24 /11 11003 sendto 137.132.83.x/24 /10 7472 sendto 137.228.83.x/24 /9 127 sendto 137.36.83.x/24 /8 11351 sendto Meaning of status in Received column:
sendto The spoofer client was unable to send spoofed headers due to an operating system restriction.
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.