Session Report
Summary:
Test run at: 2017-08-07 13:43:39 GMT
Client Prefix (v4): 211.200.52.x/24
Client AS (v4): 9318 (SKB-AS)
IPv4 Probes: 120
Outbound spoofing summary (from the client to our server) |
Source address type |
IPv4 |
Private -
RFC1918 |
blocked |
Routable |
blocked |
Largest spoofable neighbor prefix length |
/23 |
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 (211.200.52.x/24) can spoof 511 neighboring addresses (within your /23 prefix)
Spoofed source address (anon) | Prefix Length | ASN of spoofed source address | Received |
211.200.52.x/24 | /31 | 9318 | yes |
211.200.52.x/24 | /30 | 9318 | yes |
211.200.52.x/24 | /29 | 9318 | yes |
211.200.52.x/24 | /28 | 9318 | yes |
211.200.52.x/24 | /27 | 9318 | yes |
211.200.52.x/24 | /26 | 9318 | yes |
211.200.52.x/24 | /25 | 9318 | yes |
211.200.52.x/24 | /24 | 9318 | no |
211.200.53.x/24 | /23 | 9318 | yes |
211.200.54.x/24 | /22 | 9318 | no |
211.200.48.x/24 | /21 | 9318 | no |
211.200.60.x/24 | /20 | 9318 | no |
211.200.36.x/24 | /19 | 9318 | no |
211.200.20.x/24 | /18 | 9318 | no |
211.200.116.x/24 | /17 | 9318 | no |
211.200.180.x/24 | /16 | 9318 | no |
211.201.52.x/24 | /15 | 9318 | no |
211.202.52.x/24 | /14 | 9318 | no |
211.204.52.x/24 | /13 | 9318 | sendto |
211.192.52.x/24 | /12 | 4766 | no |
211.216.52.x/24 | /11 | 4766 | no |
211.232.52.x/24 | /10 | 17877 | no |
211.136.52.x/24 | /9 | 56048 | no |
211.72.52.x/24 | /8 | 3462 | no |
Meaning of status in Received column:
no | Packets spoofed from adjacent netblock were not received, probably due to blocking |
yes | Packets spoofed from adjacent netblock were received (but that netblock is within the source AS) |
sendto | The spoofer client was unable to send spoofed headers due to an operating system restriction. |
IPv4 Outbound Filtering Depth:
The tracefilter test found your host
able to spoof routable, non-adjacent source addresses through the
first 1 IP hop(s).
Summary:
The results from all tests are aggregated to produce a summary
"State of IP Spoofing" report.
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