Logo

Session Report

Summary:
Test run at: 2017-03-23 12:25:28 GMT
Client Prefix (v4): 43.252.35.x/24
Client AS (v4): 58640 (NEXTRA-IN)
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 /12
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 (43.252.35.x/24) can spoof 1048575 neighboring addresses (within your /12 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
43.252.35.x/24/3158640natblock
43.252.35.x/24/3058640natblock
43.252.35.x/24/2958640natblock
43.252.35.x/24/2858640natblock
43.252.35.x/24/2758640natblock
43.252.35.x/24/2658640natblock
43.252.35.x/24/2558640natblock
43.252.35.x/24/2458640natblock
43.252.34.x/24/2358640natblock
43.252.33.x/24/2258640natblock
43.252.39.x/24/21UNROUTEDnatblock
43.252.43.x/24/2038277yes
43.252.51.x/24/19UNROUTEDnatblock
43.252.3.x/24/1845270yes
43.252.99.x/24/17UNROUTEDnatblock
43.252.163.x/24/1659371yes
43.253.35.x/24/1517686yes
43.254.35.x/24/1458659yes
43.248.35.x/24/1345916yes
43.244.35.x/24/1210013yes
43.236.35.x/24/11UNROUTEDnatblock
43.220.35.x/24/10UNROUTEDnatblock
43.188.35.x/24/9UNROUTEDnatblock
43.124.35.x/24/8UNROUTEDnatblock

Meaning of status in Received column:

yesPackets spoofed from adjacent netblock were received
natblockSpoofed probe packets appear to be blocked by your local NAT or firewall rather than being rewritten with a public source address.

IPv4 Outbound Filtering Depth:

The tracefilter test found your host able to spoof routable, non-adjacent source addresses through the first 2 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