TESTING YOUR ROUTER FROM THE OUTSIDE
ShieldsUP!! -- Internet Connection Security for Windows Users
by Steve Gibson, Gibson Research Corporation
https://www.grc.com/x/ne.dll?bh0bkyd2
Your use of the Internet security vulnerability profiling
services on this site constitutes your FORMAL PERMISSION for
us to conduct these tests and requests our transmission of
Internet packets to your computer. ShieldsUP!! benignly
probes the target computer at your location. Since these
probings must travel from our server to your computer, you
should be certain to have administrative right-of-way to
conduct probative protocol tests through any and all
equipment located between your computer and the Internet.
DNS Nameserver Spoofability Test
https://www.grc.com/dns/dns.htm
Understanding ICMP and why you shouldn't just block it outright
https://neilalexander.dev/2017/04/16/understanding-icmp.html
You need your External IPv4 address for Nmap Online (below)
https://bgp.he.net
http://test-ipv6.freerangecloud.com
Test Firewall
https://www.grc.com/x/ne.dll?bh0bkyd2
http://www.ipv6scanner.com/cgi-bin/main.py
Test Your Router
https://www.routersecurity.org/testrouter.php
sam.wormley@icloud.com