Session Report
Summary:
Test run at: 2017-10-04 11:05:13 GMT
Client Prefix (v4): 1.239.204.x/24
Client AS (v4): 9318 (SKB-AS)
IPv4 Probes: 119
Outbound spoofing summary (from the client to our server) |
Source address type |
IPv4 |
Private -
RFC1918 |
blocked |
Routable |
blocked |
Largest spoofable neighbor prefix length |
/24 |
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 (1.239.204.x/24) can spoof 255 neighboring addresses (within your /24 prefix)
Spoofed source address (anon) | Prefix Length | ASN of spoofed source address | Received |
1.239.204.x/24 | /31 | 9318 | yes |
1.239.204.x/24 | /30 | 9318 | yes |
1.239.204.x/24 | /29 | 9318 | yes |
1.239.204.x/24 | /28 | 9318 | yes |
1.239.204.x/24 | /27 | 9318 | yes |
1.239.204.x/24 | /26 | 9318 | yes |
1.239.204.x/24 | /25 | 9318 | yes |
1.239.204.x/24 | /24 | 9318 | yes |
1.239.205.x/24 | /23 | 9318 | no |
1.239.206.x/24 | /22 | 9318 | no |
1.239.200.x/24 | /21 | 9318 | no |
1.239.196.x/24 | /20 | 9318 | no |
1.239.220.x/24 | /19 | 9318 | no |
1.239.236.x/24 | /18 | 9318 | no |
1.239.140.x/24 | /17 | 9318 | no |
1.239.76.x/24 | /16 | 9318 | no |
1.238.204.x/24 | /15 | 9318 | no |
1.237.204.x/24 | /14 | 9318 | no |
1.235.204.x/24 | /13 | 9318 | no |
1.231.204.x/24 | /12 | 9318 | no |
1.255.204.x/24 | /11 | 9318 | no |
1.207.204.x/24 | /10 | 4134 | no |
1.175.204.x/24 | /9 | 3462 | no |
1.111.204.x/24 | /8 | 4766 | 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) |
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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