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Session Report

Summary:
Test run at: 2017-02-26 17:57:26 GMT
Client Prefix (v4): 208.180.232.x/24
Client AS (v4): 19108 (SUDDENLINK-COMMUNICATIONS)
IPv4 Probes: 104
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 (208.180.232.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
208.180.232.x/24/3119108rewritten
208.180.232.x/24/3019108rewritten
208.180.232.x/24/2919108rewritten
208.180.232.x/24/2819108rewritten
208.180.232.x/24/2719108rewritten
208.180.232.x/24/2619108rewritten
208.180.232.x/24/2519108rewritten
208.180.232.x/24/2419108rewritten
208.180.233.x/24/2319108rewritten
208.180.234.x/24/2219108rewritten
208.180.236.x/24/2119108rewritten
208.180.224.x/24/2019108rewritten
208.180.248.x/24/1919108rewritten
208.180.200.x/24/1819108rewritten
208.180.168.x/24/1719108rewritten
208.180.104.x/24/1619108rewritten
208.181.232.x/24/15852rewritten
208.182.232.x/24/1419957rewritten
208.176.232.x/24/132828rewritten
208.188.232.x/24/127018rewritten
208.164.232.x/24/113561rewritten
208.148.232.x/24/103561rewritten
208.244.232.x/24/9701rewritten
208.52.232.x/24/8UNROUTEDrewritten

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 2 IP hop(s).
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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