Session Report
Summary:
Test run at: 2020-08-25 23:24:04 GMT
Client Prefix (v4): 142.202.48.x/24
Client AS (v4): 63023 (AS-GLOBALTELEHOST)
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 (142.202.48.x/24) can spoof 0 neighboring addresses
| Spoofed source address (anon) | Prefix
Length | ASN of spoofed
source address | Received |
|---|
| 142.202.48.x/24 | /31 | 63023 | natblock |
| 142.202.48.x/24 | /30 | 63023 | natblock |
| 142.202.48.x/24 | /29 | 63023 | natblock |
| 142.202.48.x/24 | /28 | 63023 | natblock |
| 142.202.48.x/24 | /27 | 63023 | natblock |
| 142.202.48.x/24 | /26 | 63023 | natblock |
| 142.202.48.x/24 | /25 | 63023 | natblock |
| 142.202.48.x/24 | /24 | 63023 | natblock |
| 142.202.49.x/24 | /23 | 63023 | natblock |
| 142.202.50.x/24 | /22 | 63023 | natblock |
| 142.202.52.x/24 | /21 | 64227 | natblock |
| 142.202.56.x/24 | /20 | 17004 | natblock |
| 142.202.32.x/24 | /19 | 13911 | natblock |
| 142.202.16.x/24 | /18 | 53831 | natblock |
| 142.202.112.x/24 | /17 | 36511 | natblock |
| 142.202.176.x/24 | /16 | UNROUTED | natblock |
| 142.203.48.x/24 | /15 | UNROUTED | natblock |
| 142.200.48.x/24 | /14 | UNROUTED | natblock |
| 142.206.48.x/24 | /13 | 2665 | natblock |
| 142.194.48.x/24 | /12 | UNROUTED | natblock |
| 142.218.48.x/24 | /11 | UNROUTED | natblock |
| 142.234.48.x/24 | /10 | 7203 | natblock |
| 142.138.48.x/24 | /9 | UNROUTED | natblock |
| 142.74.48.x/24 | /8 | UNROUTED | 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:
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and invite users to join the Spoofer
Users Mailing List for discussion and announcements.
