Session Report
Summary:
Test run at: 2020-09-02 15:21:24 GMT
Client Prefix (v4): 174.128.242.x/24
Client AS (v4): 46844 (ST-BGP)
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 (174.128.242.x/24) can spoof 0 neighboring addresses
| Spoofed source address (anon) | Prefix
Length | ASN of spoofed
source address | Received |
|---|
| 174.128.242.x/24 | /31 | 46844 | natblock |
| 174.128.242.x/24 | /30 | 46844 | natblock |
| 174.128.242.x/24 | /29 | 46844 | natblock |
| 174.128.242.x/24 | /28 | 46844 | natblock |
| 174.128.242.x/24 | /27 | 46844 | natblock |
| 174.128.242.x/24 | /26 | 46844 | natblock |
| 174.128.242.x/24 | /25 | 46844 | natblock |
| 174.128.242.x/24 | /24 | 46844 | natblock |
| 174.128.243.x/24 | /23 | 46844 | natblock |
| 174.128.240.x/24 | /22 | 46844 | natblock |
| 174.128.246.x/24 | /21 | 46844 | natblock |
| 174.128.250.x/24 | /20 | 46844 | natblock |
| 174.128.226.x/24 | /19 | 46844 | natblock |
| 174.128.210.x/24 | /18 | 19982 | natblock |
| 174.128.178.x/24 | /17 | 29838 | natblock |
| 174.128.114.x/24 | /16 | UNROUTED | natblock |
| 174.129.242.x/24 | /15 | 14618 | natblock |
| 174.130.242.x/24 | /14 | 7029 | natblock |
| 174.132.242.x/24 | /13 | 36351 | natblock |
| 174.136.242.x/24 | /12 | UNROUTED | natblock |
| 174.144.242.x/24 | /11 | 10507 | natblock |
| 174.160.242.x/24 | /10 | 7922 | natblock |
| 174.192.242.x/24 | /9 | 22394 | natblock |
| 174.0.242.x/24 | /8 | 6327 | 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.
