Logo

Session Report

Summary:
Test run at: 2022-12-16 07:34:52 GMT
Client Prefix (v4): 37.114.53.x/24
Client AS (v4): 44486 (SYNLINQ)
IPv4 Probes: 60
Client Prefix (v6): 2a04:e8c0:xx::/40
Client AS (v6): 44486 (SYNLINQ)
IPv6 Probes: 52
Outbound spoofing summary (from the client to our server)
Source address type IPv4IPv6
Private - RFC1918 or ULA blockedblocked
Routable receivedblocked
Largest spoofable neighbor prefix length /20/48
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 (37.114.53.x/24) can spoof 4095 neighboring addresses (within your /20 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
37.114.53.x/24/3144486yes
37.114.53.x/24/3044486yes
37.114.53.x/24/2944486yes
37.114.53.x/24/2844486yes
37.114.53.x/24/2744486yes
37.114.53.x/24/2644486yes
37.114.53.x/24/2544486yes
37.114.53.x/24/2444486yes
37.114.52.x/24/2360461no
37.114.55.x/24/2260461no
37.114.49.x/24/2160461no
37.114.61.x/24/2048314yes
37.114.37.x/24/19213250no
37.114.21.x/24/1841341no
37.114.117.x/24/1762255no
37.114.181.x/24/1644725no
37.115.53.x/24/1515895no
37.112.53.x/24/1457044no
37.118.53.x/24/1330722no
37.122.53.x/24/1228812no
37.98.53.x/24/11197207no
37.82.53.x/24/103320no
37.50.53.x/24/93320no
37.242.53.x/24/835819no

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
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 unable to spoof routable, non-adjacent source addresses through even the first IP hop.
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
2a04:e8c0:xx::/40/12044486yes
2a04:e8c0:xx::/40/11244486yes
2a04:e8c0:xx::/40/10444486yes
2a04:e8c0:xx::/40/9644486yes
2a04:e8c0:xx::/40/8844486yes
2a04:e8c0:xx::/40/8044486yes
2a04:e8c0:xx::/40/7244486yes
2a04:e8c0:xx::/40/6444486yes
2a04:e8c0:xx::/40/5644486yes
2a04:e8c0:xx::/40/4844486yes
2a04:e8c0:xx::/40/4044486no
2a04:e8c0:80xx::/40/3244486no
2a04:e840:xx::/40/2447704no
2a04:68c0: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