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Session Report

Summary:
Test run at: 2021-10-18 13:43:31 GMT
Client Prefix (v4): 103.160.62.x/24
Client AS (v4): 140443 (IDNIC-HERZA-AS-ID)
IPv4 Probes: 66
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 (103.160.62.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
103.160.62.x/24/31140443sendto
103.160.62.x/24/30140443sendto
103.160.62.x/24/29140443sendto
103.160.62.x/24/28140443sendto
103.160.62.x/24/27140443sendto
103.160.62.x/24/26140443sendto
103.160.62.x/24/25140443sendto
103.160.62.x/24/24140443sendto
103.160.63.x/24/23140443sendto
103.160.60.x/24/22134456sendto
103.160.58.x/24/2159253sendto
103.160.54.x/24/20141582sendto
103.160.46.x/24/19136360sendto
103.160.30.x/24/18UNROUTEDsendto
103.160.126.x/24/17UNROUTEDsendto
103.160.190.x/24/16141476sendto
103.161.62.x/24/1538156sendto
103.162.62.x/24/14141642sendto
103.164.62.x/24/13142032sendto
103.168.62.x/24/1258678sendto
103.176.62.x/24/11UNROUTEDsendto
103.128.62.x/24/10UNROUTEDsendto
103.224.62.x/24/9UNROUTEDsendto
103.32.62.x/24/8UNROUTEDrewritten

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.
sendtoThe 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.
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