Logo

Session Report

Summary:
Test run at: 2021-03-30 07:20:23 GMT
Client Prefix (v4): 103.151.43.x/24
Client AS (v4): 136969 (KKNETWROK-AS-AP)
IPv4 Probes: 66
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 rewritten
Routable received
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 (103.151.43.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
103.151.43.x/24/31136969rewritten
103.151.43.x/24/30136969rewritten
103.151.43.x/24/29136969natblock
103.151.43.x/24/28136969rewritten
103.151.43.x/24/27136969rewritten
103.151.43.x/24/26136969rewritten
103.151.43.x/24/25136969rewritten
103.151.43.x/24/24136969rewritten
103.151.42.x/24/23136969rewritten
103.151.41.x/24/22213035rewritten
103.151.47.x/24/21140732rewritten
103.151.35.x/24/20140413rewritten
103.151.59.x/24/19140624rewritten
103.151.11.x/24/18140616rewritten
103.151.107.x/24/17UNROUTEDrewritten
103.151.171.x/24/16140674rewritten
103.150.43.x/24/15138172rewritten
103.149.43.x/24/141221rewritten
103.147.43.x/24/13139925rewritten
103.159.43.x/24/12138245rewritten
103.135.43.x/24/11139291rewritten
103.183.43.x/24/10UNROUTEDrewritten
103.215.43.x/24/955649rewritten
103.23.43.x/24/858923rewritten

Meaning of status in Received column:

natblockSpoofed probe packets appear to be blocked by your local NAT or firewall rather than being rewritten with a public source address.
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 10 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