Session Report
Summary:
Test run at: 2021-09-10 09:48:52 GMT
Client Prefix (v4): 103.83.159.x/24
Client AS (v4): 17831 (CENTERHOP-SG)
IPv4 Probes: 66
Outbound spoofing summary (from the client to our server) |
Source address type |
IPv4 |
Private -
RFC1918 |
✔ | received |
Routable |
✔ | received |
Largest spoofable neighbor prefix length |
/8 |
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 (103.83.159.x/24) can spoof 16777215 neighboring addresses (within your /8 prefix)
Spoofed source address (anon) | Prefix Length | ASN of spoofed source address | Received |
103.83.159.x/24 | /31 | 17831 | yes |
103.83.159.x/24 | /30 | 17831 | yes |
103.83.159.x/24 | /29 | 17831 | yes |
103.83.159.x/24 | /28 | 17831 | yes |
103.83.159.x/24 | /27 | 17831 | yes |
103.83.159.x/24 | /26 | 17831 | yes |
103.83.159.x/24 | /25 | 17831 | yes |
103.83.159.x/24 | /24 | 17831 | yes |
103.83.158.x/24 | /23 | 17831 | yes |
103.83.157.x/24 | /22 | 17831 | yes |
103.83.155.x/24 | /21 | 58659 | yes |
103.83.151.x/24 | /20 | UNROUTED | yes |
103.83.143.x/24 | /19 | UNROUTED | yes |
103.83.191.x/24 | /18 | 136210 | yes |
103.83.223.x/24 | /17 | 58965 | yes |
103.83.31.x/24 | /16 | UNROUTED | yes |
103.82.159.x/24 | /15 | 135852 | yes |
103.81.159.x/24 | /14 | 135848 | yes |
103.87.159.x/24 | /13 | UNROUTED | yes |
103.91.159.x/24 | /12 | 133929 | yes |
103.67.159.x/24 | /11 | 45245 | yes |
103.115.159.x/24 | /10 | 137842 | yes |
103.19.159.x/24 | /9 | UNROUTED | yes |
103.211.159.x/24 | /8 | UNROUTED | yes |
Meaning of status in Received column:
yes | Packets spoofed from adjacent netblock were received |
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 10 IP hop(s).
Summary:
The results from all tests are aggregated to produce a summary
"State of IP Spoofing" report.
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