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Session Report

Summary:
Test run at: 2022-07-25 12:47:55 GMT
Client Prefix (v4): 179.111.139.x/24
Client AS (v4): 27699
IPv4 Probes: 60
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 rewritten
Routable rewritten
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.

Warnings:

IPv4 Adjacent Netblock Testing:

Your host (179.111.139.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
179.111.139.x/24/3127699rewritten
179.111.139.x/24/3027699rewritten
179.111.139.x/24/2927699rewritten
179.111.139.x/24/2827699rewritten
179.111.139.x/24/2727699rewritten
179.111.139.x/24/2627699rewritten
179.111.139.x/24/2527699rewritten
179.111.139.x/24/2427699rewritten
179.111.138.x/24/2327699rewritten
179.111.137.x/24/2227699rewritten
179.111.143.x/24/2127699rewritten
179.111.131.x/24/2027699rewritten
179.111.155.x/24/1927699rewritten
179.111.171.x/24/1827699rewritten
179.111.203.x/24/1727699rewritten
179.111.11.x/24/1627699rewritten
179.110.139.x/24/1527699rewritten
179.109.139.x/24/14263585rewritten
179.107.139.x/24/1328171rewritten
179.103.139.x/24/1226599rewritten
179.127.139.x/24/1128146rewritten
179.79.139.x/24/1026615rewritten
179.47.139.x/24/9UNROUTEDrewritten
179.239.139.x/24/87738rewritten

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 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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