Session Report
Summary:
Test run at: 2020-03-31 09:07:33 GMT
Client Prefix (v4): 104.37.175.x/24
Client AS (v4): 396073 (MAJESTIC-HOSTING-01)
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 |
/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 (104.37.175.x/24) can spoof 1023 neighboring addresses (within your /22 prefix)
| Spoofed source address (anon) | Prefix
Length | ASN of spoofed
source address | Received |
|---|
| 104.37.175.x/24 | /31 | 396073 | yes |
| 104.37.175.x/24 | /30 | 396073 | yes |
| 104.37.175.x/24 | /29 | 396073 | yes |
| 104.37.175.x/24 | /28 | 396073 | yes |
| 104.37.175.x/24 | /27 | 396073 | yes |
| 104.37.175.x/24 | /26 | 396073 | yes |
| 104.37.175.x/24 | /25 | 396073 | yes |
| 104.37.175.x/24 | /24 | 396073 | yes |
| 104.37.174.x/24 | /23 | 396073 | yes |
| 104.37.173.x/24 | /22 | 396073 | yes |
| 104.37.171.x/24 | /21 | 62838 | no |
| 104.37.167.x/24 | /20 | 393442 | no |
| 104.37.191.x/24 | /19 | 19318 | no |
| 104.37.143.x/24 | /18 | 53282 | no |
| 104.37.239.x/24 | /17 | 21748 | no |
| 104.37.47.x/24 | /16 | 16628 | no |
| 104.36.175.x/24 | /15 | 397545 | no |
| 104.39.175.x/24 | /14 | 3999 | no |
| 104.33.175.x/24 | /13 | 20001 | no |
| 104.45.175.x/24 | /12 | 8075 | no |
| 104.53.175.x/24 | /11 | 7018 | no |
| 104.5.175.x/24 | /10 | 7018 | no |
| 104.101.175.x/24 | /9 | UNROUTED | no |
| 104.165.175.x/24 | /8 | 18779 | 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
able to spoof routable, non-adjacent source addresses through the
first 1 IP hop(s).
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.
