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Session Report

Summary:
Test run at: 2020-09-05 21:36:00 GMT
Client Prefix (v4): 172.98.83.x/24
Client AS (v4): 13213 (UK2NET-AS)
IPv4 Probes: 75
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 (172.98.83.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
172.98.83.x/24/3113213natblock
172.98.83.x/24/3013213natblock
172.98.83.x/24/2913213natblock
172.98.83.x/24/2813213natblock
172.98.83.x/24/2713213natblock
172.98.83.x/24/2613213natblock
172.98.83.x/24/2513213natblock
172.98.83.x/24/2413213natblock
172.98.82.x/24/2346562natblock
172.98.81.x/24/22UNROUTEDnatblock
172.98.87.x/24/2146562natblock
172.98.91.x/24/2046562natblock
172.98.67.x/24/1946562natblock
172.98.115.x/24/1853828natblock
172.98.19.x/24/17UNROUTEDnatblock
172.98.211.x/24/1636024natblock
172.99.83.x/24/1527357natblock
172.96.83.x/24/1464267natblock
172.102.83.x/24/135650natblock
172.106.83.x/24/1240676natblock
172.114.83.x/24/1120001natblock
172.66.83.x/24/10UNROUTEDnatblock
172.34.83.x/24/921928natblock
172.226.83.x/24/8UNROUTEDnatblock

Meaning of status in Received column:

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 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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