Logo

Session Report

Summary:
Test run at: 2022-06-14 04:04:01 GMT
Client Prefix (v4): 124.207.82.x/24
Client AS (v4): 4808 (CHINA169-BJ)
IPv4 Probes: 60
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 unknown
Routable unknown
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 (124.207.82.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
124.207.82.x/24/314808natblock
124.207.82.x/24/304808natblock
124.207.82.x/24/294808natblock
124.207.82.x/24/284808natblock
124.207.82.x/24/274808natblock
124.207.82.x/24/264808natblock
124.207.82.x/24/254808natblock
124.207.82.x/24/244808natblock
124.207.83.x/24/234808natblock
124.207.80.x/24/224808natblock
124.207.86.x/24/214808natblock
124.207.90.x/24/204808natblock
124.207.66.x/24/194808natblock
124.207.114.x/24/184808natblock
124.207.18.x/24/174808natblock
124.207.210.x/24/164808natblock
124.206.82.x/24/154808natblock
124.205.82.x/24/144808natblock
124.203.82.x/24/13UNROUTEDnatblock
124.199.82.x/24/124782natblock
124.223.82.x/24/1145090natblock
124.239.82.x/24/104134natblock
124.143.82.x/24/99824natblock
124.79.82.x/24/84812natblock

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