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Session Report

Summary:
Test run at: 2023-11-11 18:10:56 GMT
Client Prefix (v4): 103.219.169.x/24
Client AS (v4): 396356 (MAXIHOST)
IPv4 Probes: 69
Client Prefix (v6): 2605:6440:e0xx::/40
Client AS (v6): 396356 (MAXIHOST)
IPv6 Probes: 60
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 /24/64
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 (103.219.169.x/24) can spoof 255 neighboring addresses (within your /24 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
103.219.169.x/24/31396356yes
103.219.169.x/24/30396356yes
103.219.169.x/24/29396356yes
103.219.169.x/24/28396356yes
103.219.169.x/24/27396356yes
103.219.169.x/24/26396356yes
103.219.169.x/24/25396356yes
103.219.169.x/24/24396356yes
103.219.168.x/24/23396356no
103.219.171.x/24/22396356no
103.219.173.x/24/2141477no
103.219.161.x/24/2038203no
103.219.185.x/24/194847no
103.219.137.x/24/1817882no
103.219.233.x/24/17135494no
103.219.41.x/24/16136334no
103.218.169.x/24/1523860no
103.217.169.x/24/14UNROUTEDno
103.223.169.x/24/13UNROUTEDno
103.211.169.x/24/12151114no
103.203.169.x/24/11UNROUTEDno
103.251.169.x/24/10151087no
103.155.169.x/24/9141065no
103.91.169.x/24/8UNROUTEDno

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 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
2605:6440:e0xx::/40/120396356yes
2605:6440:e0xx::/40/112396356yes
2605:6440:e0xx::/40/104396356yes
2605:6440:e0xx::/40/96396356yes
2605:6440:e0xx::/40/88396356yes
2605:6440:e0xx::/40/80396356yes
2605:6440:e0xx::/40/72396356yes
2605:6440:e0xx::/40/64396356yes
2605:6440:e0xx::/40/56396356no
2605:6440:e0xx::/40/48396356no
2605:6440:e0xx::/40/40396356no
2605:6440:60xx::/40/32396356no
2605:64c0:e0xx::/40/2463294no
2605:e440:e0xx::/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.
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