Logo

Session Report

Summary:
Test run at: 2020-10-21 22:11:17 GMT
Client Prefix (v4): 128.90.101.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 (128.90.101.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
128.90.101.x/24/3122363natblock
128.90.101.x/24/3022363natblock
128.90.101.x/24/2922363natblock
128.90.101.x/24/2822363natblock
128.90.101.x/24/2722363natblock
128.90.101.x/24/2622363natblock
128.90.101.x/24/2522363natblock
128.90.101.x/24/2422363natblock
128.90.100.x/24/2322363natblock
128.90.103.x/24/2222363natblock
128.90.97.x/24/2122363natblock
128.90.109.x/24/2022363natblock
128.90.117.x/24/1922363natblock
128.90.69.x/24/1822363natblock
128.90.37.x/24/17UNROUTEDnatblock
128.90.229.x/24/16UNROUTEDnatblock
128.91.101.x/24/1555natblock
128.88.101.x/24/147430natblock
128.94.101.x/24/138075natblock
128.82.101.x/24/121201natblock
128.74.101.x/24/118402natblock
128.122.101.x/24/1012natblock
128.26.101.x/24/9UNROUTEDnatblock
128.218.101.x/24/85653natblock

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