Session Report
Summary:
Test run at: 2020-08-31 16:51:16 GMT
Client Prefix (v4): 5.206.231.x/24
Client AS (v4): 47674 (NETSOLUTIONS)
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 (5.206.231.x/24) can spoof 0 neighboring addresses
Spoofed source address (anon) | Prefix Length | ASN of spoofed source address | Received |
5.206.231.x/24 | /31 | 47674 | natblock |
5.206.231.x/24 | /30 | 47674 | natblock |
5.206.231.x/24 | /29 | 47674 | natblock |
5.206.231.x/24 | /28 | 47674 | natblock |
5.206.231.x/24 | /27 | 47674 | natblock |
5.206.231.x/24 | /26 | 47674 | natblock |
5.206.231.x/24 | /25 | 47674 | natblock |
5.206.231.x/24 | /24 | 47674 | natblock |
5.206.230.x/24 | /23 | 47674 | natblock |
5.206.229.x/24 | /22 | UNROUTED | natblock |
5.206.227.x/24 | /21 | 49349 | natblock |
5.206.239.x/24 | /20 | 206262 | natblock |
5.206.247.x/24 | /19 | 57332 | natblock |
5.206.199.x/24 | /18 | 39642 | natblock |
5.206.167.x/24 | /17 | 21334 | natblock |
5.206.103.x/24 | /16 | 8369 | natblock |
5.207.231.x/24 | /15 | 21497 | natblock |
5.204.231.x/24 | /14 | 8448 | natblock |
5.202.231.x/24 | /13 | 49100 | natblock |
5.198.231.x/24 | /12 | 13113 | natblock |
5.222.231.x/24 | /11 | UNROUTED | natblock |
5.238.231.x/24 | /10 | 58224 | natblock |
5.142.231.x/24 | /9 | 12389 | natblock |
5.78.231.x/24 | /8 | 16322 | 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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