Logo

Session Report

Summary:
Test run at: 2017-03-21 14:40:17 GMT
Client Prefix (v4): 200.2.133.x/24
Client AS (v4): 27759
IPv4 Probes: 104
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 blocked
Routable blocked
Largest spoofable neighbor prefix length /20
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 (200.2.133.x/24) can spoof 4095 neighboring addresses (within your /20 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
200.2.133.x/24/3127759yes
200.2.133.x/24/3027759yes
200.2.133.x/24/2927759yes
200.2.133.x/24/2827759yes
200.2.133.x/24/2727759yes
200.2.133.x/24/2627759yes
200.2.133.x/24/2527759yes
200.2.133.x/24/2427759yes
200.2.132.x/24/2327759yes
200.2.135.x/24/2227759yes
200.2.129.x/24/2127759yes
200.2.141.x/24/2027759yes
200.2.149.x/24/1927759no
200.2.165.x/24/1827775no
200.2.197.x/24/174995no
200.2.5.x/24/1627676no
200.3.133.x/24/15UNROUTEDno
200.0.133.x/24/14UNROUTEDno
200.6.133.x/24/13264314no
200.10.133.x/24/1261934no
200.18.133.x/24/111916no
200.34.133.x/24/10UNROUTEDno
200.66.133.x/24/98151no
200.130.133.x/24/81916no

Meaning of status in Received column:

noPackets spoofed from adjacent netblock were not received, probably due to blocking
yesPackets spoofed from adjacent netblock were received (but that netblock is within the source AS)

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