Logo

Session Report

Summary:
Test run at: 2020-10-09 01:43:00 GMT
Client Prefix (v4): 146.247.25.x/24
Client AS (v4): 43128 (DHH-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 (146.247.25.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
146.247.25.x/24/3143128natblock
146.247.25.x/24/3043128natblock
146.247.25.x/24/2943128natblock
146.247.25.x/24/2843128natblock
146.247.25.x/24/2743128natblock
146.247.25.x/24/2643128natblock
146.247.25.x/24/2543128natblock
146.247.25.x/24/2443128natblock
146.247.24.x/24/2343128natblock
146.247.27.x/24/2243128natblock
146.247.29.x/24/21UNROUTEDnatblock
146.247.17.x/24/2050428natblock
146.247.9.x/24/198659natblock
146.247.57.x/24/1824851natblock
146.247.89.x/24/1749961natblock
146.247.153.x/24/1650608natblock
146.246.25.x/24/153562natblock
146.245.25.x/24/1431822natblock
146.243.25.x/24/136527natblock
146.255.25.x/24/12UNROUTEDnatblock
146.231.25.x/24/1137520natblock
146.215.25.x/24/109619natblock
146.183.25.x/24/9UNROUTEDnatblock
146.119.25.x/24/8201991natblock

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.
Last Modified