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Session Report

Summary:
Test run at: 2022-08-17 13:12:28 GMT
Client Prefix (v4): 103.153.254.x/24
Client AS (v4): 135905 (VNPT-AS-VN)
IPv4 Probes: 60
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 blocked
Routable blocked
Largest spoofable neighbor prefix length none
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 Adjacent Netblock Testing:

Your host (103.153.254.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
103.153.254.x/24/31135905no
103.153.254.x/24/30135905no
103.153.254.x/24/29135905no
103.153.254.x/24/28135905no
103.153.254.x/24/27135905no
103.153.254.x/24/26135905no
103.153.254.x/24/25135905no
103.153.254.x/24/24135905no
103.153.255.x/24/23135905no
103.153.252.x/24/22136946no
103.153.250.x/24/21136356no
103.153.246.x/24/20140475no
103.153.238.x/24/19140967no
103.153.222.x/24/1845557no
103.153.190.x/24/17140469no
103.153.126.x/24/16140462no
103.152.254.x/24/157590no
103.155.254.x/24/14140757no
103.157.254.x/24/13139108no
103.145.254.x/24/12135905no
103.137.254.x/24/11138833no
103.185.254.x/24/10UNROUTEDno
103.217.254.x/24/9136557no
103.25.254.x/24/858779no

Meaning of status in Received column:

noPackets spoofed from adjacent netblock were not received, probably due to blocking

IPv4 Outbound Filtering Depth:

The tracefilter test found your host unable to spoof routable, non-adjacent source addresses through even the first IP hop.
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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