Session Report
Summary:
Test run at: 2017-11-16 20:17:46 GMT
Client Prefix (v4): 192.162.24.x/24
Client AS (v4): 56934 (CRAFTHOSTING-AS)
IPv4 Probes: 105
| Outbound spoofing summary (from the client to our server) |
|---|
| Source address type |
IPv4 |
|---|
| Private -
RFC1918 |
blocked |
| Routable |
blocked |
| Largest spoofable neighbor prefix length |
/22 |
| 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 (192.162.24.x/24) can spoof 1023 neighboring addresses (within your /22 prefix)
| Spoofed source address (anon) | Prefix
Length | ASN of spoofed
source address | Received |
|---|
| 192.162.24.x/24 | /31 | 56934 | yes |
| 192.162.24.x/24 | /30 | 56934 | yes |
| 192.162.24.x/24 | /29 | 56934 | yes |
| 192.162.24.x/24 | /28 | 56934 | yes |
| 192.162.24.x/24 | /27 | 56934 | yes |
| 192.162.24.x/24 | /26 | 56934 | yes |
| 192.162.24.x/24 | /25 | 56934 | yes |
| 192.162.24.x/24 | /24 | 56934 | yes |
| 192.162.25.x/24 | /23 | 56934 | yes |
| 192.162.26.x/24 | /22 | 56934 | yes |
| 192.162.28.x/24 | /21 | 31736 | no |
| 192.162.16.x/24 | /20 | 3233 | no |
| 192.162.8.x/24 | /19 | 35165 | no |
| 192.162.56.x/24 | /18 | 56578 | no |
| 192.162.88.x/24 | /17 | 15370 | no |
| 192.162.152.x/24 | /16 | 56600 | no |
| 192.163.24.x/24 | /15 | 54963 | no |
| 192.160.24.x/24 | /14 | UNROUTED | no |
| 192.166.24.x/24 | /13 | UNROUTED | no |
| 192.170.24.x/24 | /12 | UNROUTED | no |
| 192.178.24.x/24 | /11 | 15169 | no |
| 192.130.24.x/24 | /10 | 1759 | no |
| 192.226.24.x/24 | /9 | UNROUTED | no |
| 192.34.24.x/24 | /8 | 14458 | no |
Meaning of status in Received column:
| no | Packets spoofed from adjacent netblock were not received, probably due to blocking |
| yes | Packets spoofed from adjacent netblock were received (but that netblock is within the source AS) |
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.
