Logo

Session Report

Summary:
Test run at: 2022-12-09 13:35:18 GMT
Client Prefix (v4): 124.49.110.x/24
Client AS (v4): 17858 (POWERVIS-AS-KR)
IPv4 Probes: 60
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 blocked
Routable blocked
Largest spoofable neighbor prefix length /17
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 (124.49.110.x/24) can spoof 32767 neighboring addresses (within your /17 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
124.49.110.x/24/3117858sendto
124.49.110.x/24/3017858sendto
124.49.110.x/24/2917858sendto
124.49.110.x/24/2817858sendto
124.49.110.x/24/2717858sendto
124.49.110.x/24/2617858sendto
124.49.110.x/24/2517858sendto
124.49.110.x/24/2417858sendto
124.49.111.x/24/2317858sendto
124.49.108.x/24/2217858sendto
124.49.106.x/24/2117858sendto
124.49.102.x/24/2017858sendto
124.49.126.x/24/1917858sendto
124.49.78.x/24/1817858sendto
124.49.46.x/24/1717858yes
124.49.238.x/24/1617858sendto
124.48.110.x/24/1517858sendto
124.51.110.x/24/1417858sendto
124.53.110.x/24/1317858sendto
124.57.110.x/24/1217858sendto
124.33.110.x/24/1117506sendto
124.17.110.x/24/107497sendto
124.113.110.x/24/94134sendto
124.177.110.x/24/81221sendto

Meaning of status in Received column:

yesPackets spoofed from adjacent netblock were received (but that netblock is within the source AS)
sendtoThe spoofer client was unable to send spoofed headers due to an operating system restriction.

IPv4 Outbound Filtering Depth:

The tracefilter test found your host unable to spoof routable, non-adjacent source addresses through even the first IP hop.
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