When I moved, I had to go from my old Linksys router to a ISP-supplied Sagemcom 5260 Fast; now when I visit Shields Up! at grc.com, it passes every port test but fails ICMP (ping). I made rules to block it for v4 and v6 in Windows Firewall, but still no joy. Questions:
- Is it the router itself that is responding, and it’s configured that way in the firmware?
- Read through a few articles on the subject, and the consensus seems to be that “In short, blocking ICMP is detrimental to the successful operation of networks. It will break more than just ping; in fact, many protocols will be neutered if ICMP isn’t working.” True? Is this blocking of ping just an old bogeyman?
- Is this a “NAT” router, and it’s going to respond to ping no matter what? No mention of “NAT” anywhere in the manual.
- Shall I leave the new block rules in place and enabled so it can’t get past the Windows software firewall?
- 5. Or….or…
As you can tell, networking is not my subject; my old PC guru tried pulling me through the other side of the firewall a number of times, but it never ‘took’. I have to take a course and set myself again to learn!
Thanks to all in advance!
Win7 Pro SP1 64-bit, Dell Latitude E6330 ("The Tank"), Intel CORE i5 "Ivy Bridge", 12GB RAM, Group "0Patch", Multiple Air-Gapped backup drives in different locations. Linux Mint Newbie
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"The more kinks you put in the plumbing, the easier it is to stop up the pipes." -Scotty