Session Report
Summary:
Test run at: 2017-07-22 09:14:33 GMT
Client Prefix (v4): 211.238.74.x/24
Client AS (v4): 9976 (ICNDP-AS-KR)
IPv4 Probes: 117
Outbound spoofing summary (from the client to our server) |
Source address type |
IPv4 |
Private -
RFC1918 |
received |
Routable |
blocked |
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 (211.238.74.x/24) can spoof 16777215 neighboring addresses (within your /8 prefix)
Spoofed source address (anon) | Prefix Length | ASN of spoofed source address | Received |
211.238.74.x/24 | /31 | 9976 | yes |
211.238.74.x/24 | /30 | 9976 | yes |
211.238.74.x/24 | /29 | 9976 | yes |
211.238.74.x/24 | /28 | 9976 | yes |
211.238.74.x/24 | /27 | 9976 | yes |
211.238.74.x/24 | /26 | 9976 | yes |
211.238.74.x/24 | /25 | 9976 | yes |
211.238.74.x/24 | /24 | 9976 | yes |
211.238.75.x/24 | /23 | 9976 | yes |
211.238.72.x/24 | /22 | 9976 | yes |
211.238.78.x/24 | /21 | 9976 | yes |
211.238.66.x/24 | /20 | 9976 | yes |
211.238.90.x/24 | /19 | 9976 | yes |
211.238.106.x/24 | /18 | 3786 | yes |
211.238.10.x/24 | /17 | 9848 | yes |
211.238.202.x/24 | /16 | 9853 | yes |
211.239.74.x/24 | /15 | 9848 | yes |
211.236.74.x/24 | /14 | 45400 | yes |
211.234.74.x/24 | /13 | 3786 | yes |
211.230.74.x/24 | /12 | 4766 | yes |
211.254.74.x/24 | /11 | 38661 | yes |
211.206.74.x/24 | /10 | 9318 | yes |
211.174.74.x/24 | /9 | 4766 | yes |
211.110.74.x/24 | /8 | 9318 | 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 8 IP hop(s).
Summary:
The results from all tests are aggregated to produce a summary
"State of IP Spoofing" report.
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