Logo

Session Report

Summary:
Test run at: 2022-06-21 01:39:59 GMT
Client Prefix (v4): 162.249.163.x/24
Client AS (v4): 21949 (BEANFIELD)
IPv4 Probes: 60
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 rewritten
Routable rewritten
Largest spoofable neighbor prefix length none
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.

Warnings:

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 (162.249.163.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
162.249.163.x/24/3121949rewritten
162.249.163.x/24/3021949rewritten
162.249.163.x/24/2921949rewritten
162.249.163.x/24/2821949rewritten
162.249.163.x/24/2721949rewritten
162.249.163.x/24/2621949rewritten
162.249.163.x/24/2521949rewritten
162.249.163.x/24/2421949rewritten
162.249.162.x/24/2321949rewritten
162.249.161.x/24/2221949rewritten
162.249.167.x/24/2162874rewritten
162.249.171.x/24/2026548rewritten
162.249.179.x/24/1960725rewritten
162.249.131.x/24/1821744rewritten
162.249.227.x/24/17UNROUTEDrewritten
162.249.35.x/24/1662917rewritten
162.248.163.x/24/1531798rewritten
162.251.163.x/24/1453767rewritten
162.253.163.x/24/13UNROUTEDrewritten
162.241.163.x/24/1246606rewritten
162.233.163.x/24/117018rewritten
162.217.163.x/24/10UNROUTEDrewritten
162.185.163.x/24/921928rewritten
162.121.163.x/24/819708rewritten

Meaning of status in Received column:

rewrittenThe source address of the probe packets we received differs from the spoofed address. It appears that an intermediate device is rewriting your packet headers.

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