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Session Report

Summary:
Test run at: 2022-02-25 13:37:22 GMT
Client Prefix (v4): 110.44.127.x/24
Client AS (v4): 45650 (VIANET-NP)
IPv4 Probes: 60
Client Prefix (v6): 2404:7c00:xx::/40
Client AS (v6): 45650 (VIANET-NP)
IPv6 Probes: 56
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 /8/16

Meaning of result status in column:

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 (110.44.127.x/24) can spoof 16777215 neighboring addresses (within your /8 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
110.44.127.x/24/3145650yes
110.44.127.x/24/3045650natblock
110.44.127.x/24/2945650yes
110.44.127.x/24/2845650yes
110.44.127.x/24/2745650yes
110.44.127.x/24/2645650yes
110.44.127.x/24/2545650yes
110.44.127.x/24/2445650yes
110.44.126.x/24/2345650yes
110.44.125.x/24/2245650yes
110.44.123.x/24/2145650yes
110.44.119.x/24/2045650yes
110.44.111.x/24/19UNROUTEDyes
110.44.95.x/24/189351yes
110.44.63.x/24/1717878yes
110.44.255.x/24/169845yes
110.45.127.x/24/1510066yes
110.46.127.x/24/149845yes
110.40.127.x/24/13UNROUTEDyes
110.36.127.x/24/1238264yes
110.60.127.x/24/119394yes
110.12.127.x/24/109318yes
110.108.127.x/24/99394yes
110.172.127.x/24/845996yes

Meaning of status in Received column:

yesPackets spoofed from adjacent netblock were received
yesPackets spoofed from adjacent netblock were received (but that netblock is within the source AS)
natblockSpoofed probe packets appear to be blocked by your local NAT or firewall rather than being rewritten with a public source address.

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
2404:7c00:xx::/40/12045650yes
2404:7c00:xx::/40/11245650yes
2404:7c00:xx::/40/10445650yes
2404:7c00:xx::/40/9645650yes
2404:7c00:xx::/40/8845650yes
2404:7c00:xx::/40/8045650yes
2404:7c00:xx::/40/7245650yes
2404:7c00:xx::/40/6445650yes
2404:7c00:xx::/40/5645650yes
2404:7c00:xx::/40/4845650yes
2404:7c00:xx::/40/4045650yes
2404:7c00:80xx::/40/3245650yes
2404:7c80:xx::/40/24133661yes
2404:fc00:xx::/40/1645910yes

Meaning of status in Received column:

yesPackets spoofed from adjacent netblock were received
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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