Session Report
Summary:
Test run at: 2020-10-04 15:44:47 GMT
Client Prefix (v4): 181.119.30.x/24
Client AS (v4): 18747 (IFX18747)
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 (181.119.30.x/24) can spoof 0 neighboring addresses
Spoofed source address (anon) | Prefix Length | ASN of spoofed source address | Received |
181.119.30.x/24 | /31 | 18747 | natblock |
181.119.30.x/24 | /30 | 18747 | natblock |
181.119.30.x/24 | /29 | 18747 | natblock |
181.119.30.x/24 | /28 | 18747 | natblock |
181.119.30.x/24 | /27 | 18747 | natblock |
181.119.30.x/24 | /26 | 18747 | natblock |
181.119.30.x/24 | /25 | 18747 | natblock |
181.119.30.x/24 | /24 | 18747 | natblock |
181.119.31.x/24 | /23 | 18747 | natblock |
181.119.28.x/24 | /22 | 18747 | natblock |
181.119.26.x/24 | /21 | 18747 | natblock |
181.119.22.x/24 | /20 | 18747 | natblock |
181.119.14.x/24 | /19 | 18747 | natblock |
181.119.62.x/24 | /18 | 18747 | natblock |
181.119.94.x/24 | /17 | 18747 | natblock |
181.119.158.x/24 | /16 | 266725 | natblock |
181.118.30.x/24 | /15 | 28114 | natblock |
181.117.30.x/24 | /14 | 19037 | natblock |
181.115.30.x/24 | /13 | 14754 | natblock |
181.127.30.x/24 | /12 | 23201 | natblock |
181.103.30.x/24 | /11 | UNROUTED | natblock |
181.87.30.x/24 | /10 | UNROUTED | natblock |
181.55.30.x/24 | /9 | 10620 | natblock |
181.247.30.x/24 | /8 | 26611 | 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.
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