Logo

Session Report

Summary:
Test run at: 2017-10-11 11:24:33 GMT
Client Prefix (v4): 130.89.92.x/24
Client AS (v4): 1133 (UTWENTE-AS)
IPv4 Probes: 105
Client Prefix (v6): 2001:67c:25xx::/40
Client AS (v6): 1133 (UTWENTE-AS)
IPv6 Probes: 68
Outbound spoofing summary (from the client to our server)
Source address type IPv4IPv6
Private - RFC1918 or ULA blockedblocked
Routable blockedblocked
Largest spoofable neighbor prefix length /16/48
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 (130.89.92.x/24) can spoof 65535 neighboring addresses (within your /16 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
130.89.92.x/24/311133yes
130.89.92.x/24/301133yes
130.89.92.x/24/291133yes
130.89.92.x/24/281133yes
130.89.92.x/24/271133yes
130.89.92.x/24/261133yes
130.89.92.x/24/251133yes
130.89.92.x/24/241133yes
130.89.93.x/24/231133yes
130.89.94.x/24/221133yes
130.89.88.x/24/211133yes
130.89.84.x/24/201133yes
130.89.76.x/24/191133yes
130.89.124.x/24/181133yes
130.89.28.x/24/171133yes
130.89.220.x/24/161133yes

Meaning of status in Received column:

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).
IPv6 probes:
Spoofed source addressDestinationReceived
IPv6 Adjacent Netblock Testing:
Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
2001:67c:25xx::/40/1201133yes
2001:67c:25xx::/40/1121133yes
2001:67c:25xx::/40/1041133yes
2001:67c:25xx::/40/961133yes
2001:67c:25xx::/40/881133yes
2001:67c:25xx::/40/801133yes
2001:67c:25xx::/40/721133yes
2001:67c:25xx::/40/641133yes
2001:67c:25xx::/40/561133yes
2001:67c:25xx::/40/481133yes

Meaning of status in Received column:

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