Session Report
Summary:
Test run at: 2020-10-22 01:55:32 GMT
Client Prefix (v4): 176.227.241.x/24
Client AS (v4): 209854 (SURFSHARK)
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 (176.227.241.x/24) can spoof 0 neighboring addresses
| Spoofed source address (anon) | Prefix
Length | ASN of spoofed
source address | Received |
|---|
| 176.227.241.x/24 | /31 | 209854 | natblock |
| 176.227.241.x/24 | /30 | 209854 | natblock |
| 176.227.241.x/24 | /29 | 209854 | natblock |
| 176.227.241.x/24 | /28 | 209854 | natblock |
| 176.227.241.x/24 | /27 | 209854 | natblock |
| 176.227.241.x/24 | /26 | 209854 | natblock |
| 176.227.241.x/24 | /25 | 209854 | natblock |
| 176.227.241.x/24 | /24 | 209854 | natblock |
| 176.227.240.x/24 | /23 | 209854 | natblock |
| 176.227.243.x/24 | /22 | 35913 | natblock |
| 176.227.245.x/24 | /21 | 44443 | natblock |
| 176.227.249.x/24 | /20 | 15425 | natblock |
| 176.227.225.x/24 | /19 | 198336 | natblock |
| 176.227.209.x/24 | /18 | 20860 | natblock |
| 176.227.177.x/24 | /17 | 34352 | natblock |
| 176.227.113.x/24 | /16 | 16135 | natblock |
| 176.226.241.x/24 | /15 | 8369 | natblock |
| 176.225.241.x/24 | /14 | 35819 | natblock |
| 176.231.241.x/24 | /13 | 12400 | natblock |
| 176.235.241.x/24 | /12 | 34984 | natblock |
| 176.243.241.x/24 | /11 | 30722 | natblock |
| 176.195.241.x/24 | /10 | 12714 | natblock |
| 176.163.241.x/24 | /9 | 5410 | natblock |
| 176.99.241.x/24 | /8 | 35598 | 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:
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.
