Logo

Session Report

Summary:
Test run at: 2018-07-13 20:56:32 GMT
Client Prefix (v4): 175.41.44.x/24
Client AS (v4): 135654 (IHL-AS-AP)
IPv4 Probes: 99
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 received
Routable received
Largest spoofable neighbor prefix length /8
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 (175.41.44.x/24) can spoof 16777215 neighboring addresses (within your /8 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
175.41.44.x/24/31135654yes
175.41.44.x/24/30135654yes
175.41.44.x/24/29135654yes
175.41.44.x/24/28135654natblock
175.41.44.x/24/27135654yes
175.41.44.x/24/26135654yes
175.41.44.x/24/25135654yes
175.41.44.x/24/24135654natblock
175.41.45.x/24/23135654yes
175.41.46.x/24/22135654yes
175.41.40.x/24/2155449yes
175.41.36.x/24/2010001yes
175.41.60.x/24/199505yes
175.41.12.x/24/18UNROUTEDnatblock
175.41.108.x/24/174721yes
175.41.172.x/24/1638895yes
175.40.44.x/24/15UNROUTEDnatblock
175.43.44.x/24/144837yes
175.45.44.x/24/139381yes
175.33.44.x/24/124804yes
175.57.44.x/24/119394yes
175.9.44.x/24/104134yes
175.105.44.x/24/910013yes
175.169.44.x/24/84837yes

Meaning of status in Received column:

yesPackets spoofed from adjacent netblock were received
yesPackets spoofed from adjacent netblock were received (but that netblock is within the source AS)
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 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