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There are many prebuilt IP scanners available, like nmap, or AngryIP, or inenumerable others easily found on google. we don't do software recommendations here on Superuser. Another easy option is to write a script that loops for 256 times, and issues a ping command either using the systems ping, or a langague API. try:for each address in a class-c network. ...


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In my case this happened because my Internet connection had both IPv4 and IPv6 enabled, but I then connected to a VPN that supported only IPv4. So I guess Windows was still trying to connect to that host over IPv6 over the VPN, which failed. The fix was to disable IPv6 in the network adapter properties for my Internet connection.


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Normally the INPUT chain have rule to allow related/established traffic -A INPUT -m state --state RELATED,ESTABLISHED -j ACCEPT When Ubuntu issue ping traffic to XP, the reply from XP is related traffic that accept by above rule.


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It ended up being a routing problem.. All my traffic was being routed through the internal NIC so I couldn't ping any public IPs.


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Please add option "multicast" to all interfaces in zebra.conf because OSPF use multicast, then restart both zebra and ospfd.


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The guy is right. Ping is only a connectivity tool, not a performance test. Basically it's just a machine way of saying "Hello, are you awake". Network devices give ICMP a very low priority. It's one way to prevent Ping of Death. Ping is handled by the router's CPU, which is also handling NAT of your traffic. What those results are telling is just that the ...


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The reality is if pinging a server—in and of itself—would cause noticeable network degradation then there would be worldwide bans on pinging devices. This blog post explains it clearly: A ping is 32 bytes in size, and if transmitted over the internet, is only 84 bytes (due to IP Header involved). Servers/Computers can receive a maximum size of ...


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but I can't ping my own computer. This means that I can't scp a file over to my home computer Not necessarily. The ability to ping your computer neither confirms nor denies the ability to connect via any other protocol. I wouldn't expect you to be able to ping your home computer from an external host. If your computer initiates the SCP file transfer then I ...


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Your problem might have several reasons: A firewall is blocking pings to your PC, this might be the router or a software firewall on your PC Your provider is blocking pings to your address You probably use an wrong address and not the IP your provider has assigned to you, maybe your local IP address (an IP in your LAN which usally starts with 192.168., 10. ...


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One method, which still requires a little bit of programming, would be to create a simple webpage that uses a javascript function to make an ajax get request to the site you want. You capture the time_before, and then time_after on the success event of the ajax. Use the time difference to update the webpage Title... which is used to label the browser ...


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First guess: Your configured DNS servers are very slow, and you haven't installed any local DNS cache that would work system-wide. Meanwhile, some web browsers (at least Firefox and Chromium) have internal DNS caching, so they don't send queries often. Chromium sometimes even tries to do DNS lookups before you even click the link, so you never notice the ...



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