Logo

Session Report

Summary:
Test run at: 2022-05-31 12:44:37 GMT
Client Prefix (v4): 178.249.217.x/24
Client AS (v4): 44219 (ICCOM-AS)
IPv4 Probes: 60
Client Prefix (v6): 2a00:1cb0:xx::/40
Client AS (v6): 0
IPv6 Probes: 56
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 /21/32
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 (178.249.217.x/24) can spoof 2047 neighboring addresses (within your /21 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
178.249.217.x/24/3144219yes
178.249.217.x/24/3044219yes
178.249.217.x/24/2944219yes
178.249.217.x/24/2844219yes
178.249.217.x/24/2744219yes
178.249.217.x/24/2644219yes
178.249.217.x/24/2544219yes
178.249.217.x/24/2444219yes
178.249.216.x/24/2344219yes
178.249.219.x/24/2244219yes
178.249.221.x/24/2144219yes
178.249.209.x/24/20212238no
178.249.201.x/24/1912874no
178.249.249.x/24/1851097no
178.249.153.x/24/1751088no
178.249.89.x/24/1658321no
178.248.217.x/24/1529037no
178.251.217.x/24/1412714no
178.253.217.x/24/139125no
178.241.217.x/24/12UNROUTEDno
178.233.217.x/24/1147524no
178.217.217.x/24/10197181no
178.185.217.x/24/912389no
178.121.217.x/24/86697no

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).
IPv6 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.

  

  
IPv6 probes:
Spoofed source addressDestinationReceived
2001:48d0:101:501::1592001:48d0:101:501::242no
2001:4978:1fb:6400::d22001:48d0:101:501::242no
2001:49aa:111:aa00::112001:48d0:101:501::242no
fd11:1111:1111::11112001:48d0:101:501::242no
2001:48d0:101:501::1592001:48d0:101:501::247no
2001:4978:1fb:6400::d22001:48d0:101:501::247no
2001:49aa:111:aa00::112001:48d0:101:501::247no
fd11:1111:1111::11112001:48d0:101:501::247no
2001:48d0:101:501::1592001:610:510:115:192:42:115:98no
2001:4978:1fb:6400::d22001:610:510:115:192:42:115:98no
2001:49aa:111:aa00::112001:610:510:115:192:42:115:98no
fd11:1111:1111::11112001:610:510:115:192:42:115:98no
2001:48d0:101:501::1592001:630:212:225:225:90ff:fe0c:45a6no
2001:4978:1fb:6400::d22001:630:212:225:225:90ff:fe0c:45a6no
2001:49aa:111:aa00::112001:630:212:225:225:90ff:fe0c:45a6no
fd11:1111:1111::11112001:630:212:225:225:90ff:fe0c:45a6no
2001:48d0:101:501::1592001:770:1c:7:225:90ff:fe0c:acb4no
2001:4978:1fb:6400::d22001:770:1c:7:225:90ff:fe0c:acb4no
2001:49aa:111:aa00::112001:770:1c:7:225:90ff:fe0c:acb4no
fd11:1111:1111::11112001:770:1c:7:225:90ff:fe0c:acb4no
IPv6 Adjacent Netblock Testing:
Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
2a00:1cb0:xx::/40/120UNROUTEDyes
2a00:1cb0:xx::/40/112UNROUTEDyes
2a00:1cb0:xx::/40/104UNROUTEDyes
2a00:1cb0:xx::/40/96UNROUTEDyes
2a00:1cb0:xx::/40/88UNROUTEDyes
2a00:1cb0:xx::/40/80UNROUTEDyes
2a00:1cb0:xx::/40/72UNROUTEDyes
2a00:1cb0:xx::/40/64UNROUTEDyes
2a00:1cb0:xx::/40/56UNROUTEDyes
2a00:1cb0:xx::/40/48UNROUTEDyes
2a00:1cb0:xx::/40/40UNROUTEDyes
2a00:1cb0:80xx::/40/32UNROUTEDyes
2a00:1c30:xx::/40/2412659no
2a00:9cb0:xx::/40/16UNROUTEDno

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)
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