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11 votes
Accepted

unable to ping my router from outside

Your IP-address starts with 100.79. That indicates your ISP uses Carrier Grade NAT and is NOT supplying you with a public ip-address. Many ISP's do this, because ip-addresses are getting scarce and ...
Tonny's user avatar
  • 32k
6 votes
Accepted

Why does a running ping process keep working during an internet outage, but restarting ping doesn't?

How is this possible? It apparently seems like "active ping sessions" aren't affected by my outage. But with ping using ICMP on layer 3, I don't get why there is a difference between keeping ...
grawity_u1686's user avatar
5 votes
Accepted

On my Mac, I can "nsloookup hostname" but I can't ping it?

After wasting hours on this problem, I finally found the fix. My DHCP server hands out an internal DNS first, then an external as a secondary. That external points to Google's 8.8.8.8. e.g.: 10.0.1....
Clayton Dukes's user avatar
3 votes

Cannot ping a Windows 11 machine

Run the following commands in an administrative shell to allow pings through the Windows Firewall. IPv4: netsh advfirewall firewall add rule name="ICMPv4 Allow Ping Requests" protocol=icmpv4:...
Olivier Lasne's user avatar
2 votes

Why do i need a default gateway in both ends?

why Pc1 is dropping the ICMP packet ? In most cases it's not dropping the packet; it's successfully receiving the packet but unable to respond to it (i.e. it's dropping the response that it generated ...
grawity_u1686's user avatar
2 votes
Accepted

Windows `ping IP` (not `ping domain`) uses wrong IP address

As mentioned in the comment, it's the routing table that ultimately decides whether the OS will directly ARP for the destination MAC address or whether it will ARP for a gateway MAC address. (In other ...
grawity_u1686's user avatar
2 votes

4g vs 5g ping in india

Why does it has almost the same ping when I am using the upgraded version of 4g (5g) as well. I know that the distance between the device and server cannot be changed, but as its 5g it must travel ...
grawity_u1686's user avatar
1 vote
Accepted

How do I detect a continuous ping connection in Windows 10 using native or Windows-maintained tools?

There are more ways to accomplish this, but the method I'm comfortable with is the following: The command tracert hostname/ipaddress can be used to see the route that is being taken from your ...
LPChip's user avatar
  • 62k
1 vote

Define route for some protocols

You can't do quite what you're asking. Most ICMP messages (such as "destination unreachable" messages unrelated to ping) are generated by the routers and servers that you're talking to (or ...
Spiff's user avatar
  • 105k
1 vote
Accepted

Destination Port Unreachable on local network

Technically what you need in addition would be just: ip route add 10.42.0.0/24 via 192.168.1.180 on A, assuming the firewall (iptables and/or nftables) on B (and the firewall on C) does not by any ...
Tom Yan's user avatar
  • 9,942
1 vote

PowerShell: Export Ping Results to CSV

Try using powershell's Test-Connection instead, which outputs handy objects: $targets = Get-Content -Path C:\Users\Chad\Desktop\IPs.txt # Loop through each target and ping it # I use -AsJob to force ...
Cpt.Whale's user avatar
  • 8,047
1 vote
Accepted

Pinging a windows machine on a network without a router/server

Responding to ping does not need a special server; it's built-in functionality in every OS – it's just blocked by Windows' default firewall settings. You need to run wf.msc, then enable the two "...
grawity_u1686's user avatar
1 vote
Accepted

Misconfigured files on an emulated SSH server and now ping, traceroute, and Docker are not working on my host VM. (SSH, apt and browser still work.)

This question has been resolved, and is up for personal posterity. The host VM was never configured to properly run ping, which I didn't consider because I was busy attempting different ...
pieris_rapae1999's user avatar
1 vote

Traceroute using UDP instead of ICMP?

Traceroute probes do not require the server to have anything open, as their purpose is to trigger replies from the intermediate routers, not from the final host; they never actually reach the final ...
grawity_u1686's user avatar
1 vote
Accepted

ping: Name or service not known

The problem is caused by the difference between the ANSWER and QUESTION sections. The following modification is required to be used with CoreDNS: https://github.com/coredns/coredns/discussions/6460 ...
Neurobion's user avatar
1 vote
Accepted

Can reach VPN peer only after ping from this peer

There are two likely explanations: The firewall at B wasn't configured to allow incoming WireGuard UDP packets through. When the 'Server' sends a packet to B, it's rejected as unrecognized. Once B ...
grawity_u1686's user avatar
1 vote

Server dropping every other ping packet

This issue turned out to be caused by a misconfigured bond interface on the network path. Originally, the two routers were connected a set of two cables for redundancy, but eventually when more ports ...
Keno Fischer's user avatar
1 vote
Accepted

CVE-2023-23415 doesn't work on my Windows 10

According to Internet Control Message Protocol (ICMP) Remote Code Execution Vulnerability at Microsoft the vulnerability was disclosed in March 2023 and then patched in the March monthly roll up ...
Mokubai's user avatar
  • 93.6k
1 vote
Accepted

VMWare ESXi VM's pinging

That's completely normal – that's the whole purpose of VLANs; they exist to isolate ports from each other. Direct "same subnet" access is only possible between ports (VMs) that are in the ...
grawity_u1686's user avatar
1 vote

Internet slows down to unusable speed after opening any game

This behavior is indicative of "Buffer Bloat" -- where your router queues packets for transmission, creating a long queue, which is why packets have such high latency to get through the ...
user165568's user avatar
1 vote

Lag on internet connection in terminal programs

The question is how can I diagnose the problem? First I would suggest to un-disable everything that you tried disabling. Diagnose the problem when the system is in its normal state. Since this looks ...
grawity_u1686's user avatar
1 vote

Identify latency problems to gaming server

Your traceroute shows that not only is the large increase in ping times well outside your control, between asianet & gcore, but also that those two locations are many thousands of miles apart - ...
Tetsujin's user avatar
  • 49.9k
1 vote

Why I can't ping external IP and resolve DNS from this Linux Ubuntu machine?

You need to enable "Replicate physical network connection state" in Vmware network's bridge mode:
Reza Mohammadi's user avatar
1 vote
Accepted

Windows - get a sound alert when site is back up

while ($true) {if (Test-Connection -quiet 8.8.8.8) { [console]::beep() }} EDIT: Sorry that was assuming that whole host down and that you had ping response from same host when up. If you don't need ...
Chalky's user avatar
  • 324

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