Session Report
Summary:
Test run at: 2022-08-12 03:02:14 GMT
Client Prefix (v4): 45.42.44.x/24
Client AS (v4): 33696 (NEXTARRAY-ASN-01)
IPv4 Probes: 60
| 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 (45.42.44.x/24) can spoof 0 neighboring addresses
| Spoofed source address (anon) | Prefix
Length | ASN of spoofed
source address | Received |
|---|
| 45.42.44.x/24 | /31 | 33696 | natblock |
| 45.42.44.x/24 | /30 | 33696 | rewritten |
| 45.42.44.x/24 | /29 | 33696 | rewritten |
| 45.42.44.x/24 | /28 | 33696 | rewritten |
| 45.42.44.x/24 | /27 | 33696 | rewritten |
| 45.42.44.x/24 | /26 | 33696 | rewritten |
| 45.42.44.x/24 | /25 | 33696 | rewritten |
| 45.42.44.x/24 | /24 | 33696 | rewritten |
| 45.42.45.x/24 | /23 | 397423 | rewritten |
| 45.42.46.x/24 | /22 | 19437 | natblock |
| 45.42.40.x/24 | /21 | 1239 | natblock |
| 45.42.36.x/24 | /20 | 30466 | rewritten |
| 45.42.60.x/24 | /19 | 33132 | natblock |
| 45.42.12.x/24 | /18 | 395570 | rewritten |
| 45.42.108.x/24 | /17 | 11814 | rewritten |
| 45.42.172.x/24 | /16 | 399141 | rewritten |
| 45.43.44.x/24 | /15 | 21859 | rewritten |
| 45.40.44.x/24 | /14 | UNROUTED | rewritten |
| 45.46.44.x/24 | /13 | 11351 | rewritten |
| 45.34.44.x/24 | /12 | 40676 | natblock |
| 45.58.44.x/24 | /11 | 6364 | rewritten |
| 45.10.44.x/24 | /10 | 198034 | rewritten |
| 45.106.44.x/24 | /9 | 37069 | rewritten |
| 45.170.44.x/24 | /8 | 267756 | rewritten |
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. |
| rewritten | The source address of the probe packets we received differs from the spoofed address. It appears that an intermediate device is rewriting your packet headers. |
IPv4 Outbound Filtering Depth:
The tracefilter test found your host
able to spoof routable, non-adjacent source addresses through the
first 10 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.
