Session Report
Summary:
Test run at: 2020-09-08 18:23:20 GMT
Client Prefix (v4): 178.162.197.x/24
Client AS (v4): 28753 (LEASEWEB-DE-FRA-10)
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 |
/26 |
| 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 (178.162.197.x/24) can spoof 63 neighboring addresses (within your /26 prefix)
| Spoofed source address (anon) | Prefix
Length | ASN of spoofed
source address | Received |
|---|
| 178.162.197.x/24 | /31 | 28753 | yes |
| 178.162.197.x/24 | /30 | 28753 | yes |
| 178.162.197.x/24 | /29 | 28753 | yes |
| 178.162.197.x/24 | /28 | 28753 | yes |
| 178.162.197.x/24 | /27 | 28753 | yes |
| 178.162.197.x/24 | /26 | 28753 | yes |
| 178.162.197.x/24 | /25 | 28753 | natblock |
| 178.162.197.x/24 | /24 | 28753 | natblock |
| 178.162.196.x/24 | /23 | 28753 | natblock |
| 178.162.199.x/24 | /22 | 28753 | natblock |
| 178.162.193.x/24 | /21 | 28753 | natblock |
| 178.162.205.x/24 | /20 | 28753 | natblock |
| 178.162.213.x/24 | /19 | 28753 | natblock |
| 178.162.229.x/24 | /18 | 28753 | natblock |
| 178.162.133.x/24 | /17 | 60781 | natblock |
| 178.162.69.x/24 | /16 | 20807 | natblock |
| 178.163.197.x/24 | /15 | 42772 | natblock |
| 178.160.197.x/24 | /14 | 12297 | natblock |
| 178.166.197.x/24 | /13 | 12389 | natblock |
| 178.170.197.x/24 | /12 | UNROUTED | natblock |
| 178.178.197.x/24 | /11 | 31133 | natblock |
| 178.130.197.x/24 | /10 | UNROUTED | natblock |
| 178.226.197.x/24 | /9 | 31615 | natblock |
| 178.34.197.x/24 | /8 | 12389 | natblock |
Meaning of status in Received column:
| yes | Packets spoofed from adjacent netblock were received (but that netblock is within the source AS) |
| 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
able to spoof routable, non-adjacent source addresses through the
first 2 IP hop(s).
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.
