Session Report
Summary:
Test run at: 2020-09-07 14:56:57 GMT
Client Prefix (v4): 196.196.19.x/24
Client AS (v4): 63119 (AS-63119)
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 |
|---|
| received | Spoofed packet was received. | ✔ | Pattern of tests from this IP block indicates a switch from allowing spoofing to blocking it. |
| rewritten | Spoofed packet was received, but the source address was changed en route. |
| blocked | Spoofed packet was not received, but unspoofed packet was. |
| unknown | Neither spoofed nor unspoofed packet was received. |
IPv4 Adjacent Netblock Testing:
Your host (196.196.19.x/24) can spoof 0 neighboring addresses
| Spoofed source address (anon) | Prefix
Length | ASN of spoofed
source address | Received |
|---|
| 196.196.19.x/24 | /31 | 63119 | natblock |
| 196.196.19.x/24 | /30 | 63119 | natblock |
| 196.196.19.x/24 | /29 | 63119 | natblock |
| 196.196.19.x/24 | /28 | 63119 | natblock |
| 196.196.19.x/24 | /27 | 63119 | natblock |
| 196.196.19.x/24 | /26 | 63119 | natblock |
| 196.196.19.x/24 | /25 | 63119 | natblock |
| 196.196.19.x/24 | /24 | 63119 | natblock |
| 196.196.18.x/24 | /23 | 57858 | natblock |
| 196.196.17.x/24 | /22 | 37518 | natblock |
| 196.196.23.x/24 | /21 | 57858 | natblock |
| 196.196.27.x/24 | /20 | 41564 | natblock |
| 196.196.3.x/24 | /19 | 57972 | natblock |
| 196.196.51.x/24 | /18 | 41564 | natblock |
| 196.196.83.x/24 | /17 | 57858 | natblock |
| 196.196.147.x/24 | /16 | 58065 | natblock |
| 196.197.19.x/24 | /15 | 37518 | natblock |
| 196.198.19.x/24 | /14 | 37518 | natblock |
| 196.192.19.x/24 | /13 | 28683 | natblock |
| 196.204.19.x/24 | /12 | 24835 | natblock |
| 196.212.19.x/24 | /11 | 3741 | natblock |
| 196.228.19.x/24 | /10 | 37492 | natblock |
| 196.132.19.x/24 | /9 | 36935 | natblock |
| 196.68.19.x/24 | /8 | 6713 | natblock |
Meaning of status in Received column:
| natblock | Spoofed 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:
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and invite users to join the Spoofer
Users Mailing List for discussion and announcements.
