Logo

Session Report

Summary:
Test run at: 2020-10-21 22:26:44 GMT
Client Prefix (v4): 31.6.21.x/24
Client AS (v4): 22363 (PHMGMT-AS1)
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 (31.6.21.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
31.6.21.x/24/3122363natblock
31.6.21.x/24/3022363natblock
31.6.21.x/24/2922363natblock
31.6.21.x/24/2822363natblock
31.6.21.x/24/2722363natblock
31.6.21.x/24/2622363natblock
31.6.21.x/24/2522363natblock
31.6.21.x/24/2422363natblock
31.6.20.x/24/23UNROUTEDnatblock
31.6.23.x/24/22UNROUTEDnatblock
31.6.17.x/24/2122363natblock
31.6.29.x/24/20UNROUTEDnatblock
31.6.5.x/24/19UNROUTEDnatblock
31.6.53.x/24/18UNROUTEDnatblock
31.6.85.x/24/1739582natblock
31.6.149.x/24/1621021natblock
31.7.21.x/24/1521366natblock
31.4.21.x/24/1412430natblock
31.2.21.x/24/1321243natblock
31.14.21.x/24/126910natblock
31.22.21.x/24/1156837natblock
31.38.21.x/24/105410natblock
31.70.21.x/24/912576natblock
31.134.21.x/24/856592natblock

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