Logo

Session Report

Summary:
Test run at: 2019-07-08 15:10:21 GMT
Client Prefix (v4): 128.91.19.x/24
Client AS (v4): 55 (UPENN)
Client Prefix (v6): 2607:f470:xx::/40
Client AS (v6): 55 (UPENN)
IPv6 Probes: 84
Outbound spoofing summary (from the client to our server)
Source address type IPv6
Private - ULA unknown
Routable unknown
Largest spoofable neighbor prefix length none
Spoof status key
receivedSpoofed packet was received.Pattern of tests from this IP block indicates a switch from allowing spoofing to blocking it.
rewrittenSpoofed packet was received, but the source address was changed en route.
blockedSpoofed packet was not received, but unspoofed packet was.
unknownNeither spoofed nor unspoofed packet was received.

Warnings:

IPv6 Adjacent Netblock Testing:

Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
2607:f470:xx::/40/12055no
2607:f470:xx::/40/11255no
2607:f470:xx::/40/10455no
2607:f470:xx::/40/9655no
2607:f470:xx::/40/8855no
2607:f470:xx::/40/8055no
2607:f470:xx::/40/7255no
2607:f470:xx::/40/6455no
2607:f470:xx::/40/5655no
2607:f470:xx::/40/4855no
2607:f470:xx::/40/4055no
2607:f470:80xx::/40/3255no
2607:f4f0:xx::/40/2440581no
2607:7470:xx::/40/16UNROUTEDno

Meaning of status in Received column:

noPackets spoofed from adjacent netblock were not received, probably due to blocking
Summary:
The results from all tests are aggregated to produce a summary "State of IP Spoofing" report.
Feedback:
We welcome questions and feedback to the Spoofer Information Mailing List and invite users to join the Spoofer Users Mailing List for discussion and announcements.
Last Modified