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Session Report

Summary:
Test run at: 2024-01-05 07:27:57 GMT
Client Prefix (v4): 110.225.211.x/24
Client AS (v4): 24560 (AIRTELBROADBAND-AS-AP)
IPv4 Probes: 69
Client Prefix (v6): 2401:4900:1cxx::/40
Client AS (v6): 24560 (AIRTELBROADBAND-AS-AP)
IPv6 Probes: 60
Outbound spoofing summary (from the client to our server)
Source address type IPv4IPv6
Private - RFC1918 or ULA rewrittenreceived
Routable receivedreceived
Largest spoofable neighbor prefix length none/16
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.

Warnings:

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 (110.225.211.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
110.225.211.x/24/3124560rewritten
110.225.211.x/24/3024560rewritten
110.225.211.x/24/2924560rewritten
110.225.211.x/24/2824560rewritten
110.225.211.x/24/2724560rewritten
110.225.211.x/24/2624560rewritten
110.225.211.x/24/2524560rewritten
110.225.211.x/24/2424560rewritten
110.225.210.x/24/2324560rewritten
110.225.209.x/24/2224560rewritten
110.225.215.x/24/2124560rewritten
110.225.219.x/24/2024560rewritten
110.225.195.x/24/1924560rewritten
110.225.243.x/24/1824560rewritten
110.225.147.x/24/1724560rewritten
110.225.83.x/24/1645609rewritten
110.224.211.x/24/1524560rewritten
110.227.211.x/24/1424560rewritten
110.229.211.x/24/134837rewritten
110.233.211.x/24/122518rewritten
110.241.211.x/24/114837rewritten
110.193.211.x/24/109394rewritten
110.161.211.x/24/99605rewritten
110.97.211.x/24/89394rewritten

Meaning of status in Received column:

rewrittenThe source address of the probe packets we received differs from the spoofed address. It appears that an intermediate device is rewriting your packet headers.

IPv4 Outbound Filtering Depth:

The tracefilter test found your host able to spoof routable, non-adjacent source addresses through the first 10 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::242yes
2001:4978:1fb:6400::d22001:48d0:101:501::242yes
2001:49aa:111:aa00::112001:48d0:101:501::242yes
fd11:1111:1111::11112001:48d0:101:501::242yes
2001:48d0:101:501::1592001:48d0:101:501::247yes
2001:4978:1fb:6400::d22001:48d0:101:501::247yes
2001:49aa:111:aa00::112001:48d0:101:501::247yes
fd11:1111:1111::11112001:48d0:101:501::247yes
2001:48d0:101:501::1592001:610:510:115:192:42:115:98yes
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:45a6yes
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:acb4yes
2001:4978:1fb:6400::d22001:770:1c:7:225:90ff:fe0c:acb4yes
2001:49aa:111:aa00::112001:770:1c:7:225:90ff:fe0c:acb4yes
fd11:1111:1111::11112001:770:1c:7:225:90ff:fe0c:acb4yes
IPv6 Adjacent Netblock Testing:
Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
2401:4900:1cxx::/40/12024560yes
2401:4900:1cxx::/40/11224560yes
2401:4900:1cxx::/40/10424560yes
2401:4900:1cxx::/40/9624560yes
2401:4900:1cxx::/40/8824560yes
2401:4900:1cxx::/40/8024560yes
2401:4900:1cxx::/40/7224560yes
2401:4900:1cxx::/40/6424560yes
2401:4900:1cxx::/40/5624560yes
2401:4900:1cxx::/40/4824560yes
2401:4900:1cxx::/40/4024560yes
2401:4900:9cxx::/40/32UNROUTEDyes
2401:4980:1cxx::/40/24UNROUTEDyes
2401:c900:1cxx::/40/16UNROUTEDyes

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.
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