A utility available on all operating systems that helps test network connectivity.

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Mac OS X Mountain Lion can't ping/telnet localhost. Point to a wrong public IP

I've been developing Node.js apps on my localhost on port 1337 for last two years with no problem as shown below. $ node app App started on port 1337 Today I wanted to test how things go with ...
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1answer
71 views

Connection/pinging from/to WLAN

Sorry for the vague title, I'm finding it hard to describe the problem accurately in a few words (but that's probably because of me, English is not my native language). I'm trying to send a file from ...
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2answers
826 views

DNS does not resolve after VPN

connected remote vpn(random vpn provider) --OK Internet access add to route tables 10.0.0.0/8(lan) to go trough local network gateway ping localnetworkcomputer with ip (10.10.74.48) --OK ...
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775 views

No PING response from host but detecting IP address

I am using a 3G USB device (PTCL EVO Nitro) to connect to the Internet on Windows 8. When I tried to open yahoo.com in IE, FF, and Chrome, none of the browsers display the page. When I try to ping ...
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3answers
210 views

Can I measure PING time between two other computers?

I am investigating a perf issue in the field. Typically, there just isn't enough bandwidth for my app to be speedy. Typically the way it works, is that I ask to Terminal (via VNC or WebEx) into the ...
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181 views

Request Timed Out if pinging some websites

I am puzzled in this situation. My computer is able to open some websites but not everyone. For example it is able to open Google and Facebook but not Yahoo and Microsoft. I tried to ping Yahoo.com ...
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4k views

not able to ping server or but can RDP

Im on Windows Server 2012 and earlier today I stopped being able to connect to my website. I tried to connect to RDP to check the error log. I could connect and login, but the error log was empty. I ...
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659 views

Ping to wireless router works in bursts

The internet connection in my new apartment is very slow. A quick ping analysis revealed that the connection to the local wireless router times out for most of the time, and then suddenly a burst of ...
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198 views

Is it possible to read ping command's message on the address you send the command to?

If let's say I use ping command in the form of ping -p 'xyz' 1.1.1.1 can I read the pattern xyz on 1.1.1.1? Are there more ways in which you transmit data using ping command?
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1k views

High speed, but longer ping times?

Running an internet speed test on my mobile phone indicates that I get a much faster download speed than my ISP broadband connection (yes, that's how bad my "broadband" is). However the ping is far ...
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2k views

OpenVPN client inside network can't ping with eachother

Everything looks configured well. From any client I can ping with 10.8.0.1(server), but can't reach other clients. Here is my server.ovpn port 1200 proto udp dev tun ca "C:\\Program Files ...
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81 views

Windows ping - 'ignores' ping replies

I'm using Window's built-in ping command to test connectivity with my Ethernet device ( a enc28j60 Ethernet controller and an avr atmega), but Windows ignores replies. Screenshots :- ...
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1k views

Get Windows ping and ipconfig tools

For some reason, my Windows 7 computer does not recognise the cmd.exe tools ping and ipconfig. I have tried to download them from the web, but I can only find tools that do similar stuff; not the ...
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2k views

How can I find the source of packet loss in a traceroute?

Whenever I ping my website, I get 5% packet loss consistently. However, pinging other sites such as google produce no packet loss. I'm really not fond of my webserver dropping packets, but I'm not ...
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4answers
22k views

“destination host unreachable” while ping attempt between 2 pc on 1 network

I have 2 computers in my network ones ip address is 192.168.2.31(PC-A) and the others is 192.168.2.33(PC-B). When I'm trying to ping from PC-B to PC-A it says: Pinging 192.168.2.33 with 32 bytes ...
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664 views

Firewall blocks ICMP even with Allow rules, even when disbled

Sometime early October (right after update Tuesday???). My Window 7 home machine stopped responding to anything incoming. Effectively breaking iTunes, Sonos, TiVo Desktop, RDP etc. But all those ...
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331 views

Good speedtest results, but web pages don't load

I have strange connection problems. Ping and download times are good - speedtest.net showed ping 65ms and download 2.17Mbps. Torrent is working well, giving me up to 300MBps. Webpages are loading ...
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102 views

Pings TTL networking

Lets say that two computers are connected on the same network through a router (default gateway). If I was to ping the other machine, which had a standard TTL of 64 (*nix host), would I get back a TTL ...
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21 views

Time to travel hops networking

If two machines are on the same network, as in, they both are connected to the same default gateway, does sending out a ping from one machine to the other make the other reply with a TTL value ...
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150 views

Why do TTLs differ in a ping

If I send a ping to a certain machine across the country with a ttl equal to 15, why does the response from the server have a ttl of 51?
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3answers
2k views

How to 'ping' politely

Today minecraft was down at exactly the moment when I wanted to take a break from studying for my finals. A harrowing experience! So I thought I would procrastinate a bit by writing a script that ...
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1answer
296 views

How to read the route table?

Host: win8 ip: 192.168.1.102 Virtual Machina: gentoo ip:192.168.1.108 I type the command route -n to see the route table. The route table is : root@gentoo-jl ~ # route -n Kernel IP routing ...
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296 views

What does this Ping answer mean?

This is the output from an attempt to ping from a Windows 7 computer with an LTE modem plugged in. The LED on the device tells me that the device has a data (IP) connection, but the Windows network ...
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1answer
2k views

How is ICMP unique?

I just read this in Wikipedia: Although ICMP messages are contained within standard IP datagrams, ICMP messages are usually processed as a special case, distinguished from normal IP ...
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57 views

source address of packets in a wifi network is the router and not the pc

I executed ping fron machine A (wireless PC) to machine B (wired PC to the wireless router). When I check the packets in machine B with wireshark they have the source address of the router ...
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1answer
465 views

Manually allow ping.exe through firewall

To improve my feeling of security I recently switched my windows 7 firewall to block all outbound connections. The only thing I can't seem to get to work is ping.exe. I tried by creating custom rules ...
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2answers
784 views

Ping flood attack every 5 seconds [duplicate]

Possible Duplicate: Ping flooding: what to do about it? My router's log, which is a D-Link DIR-600, shows 40 pages (and updating) of entries like: Nov 19 11:17:08 PING-FLOODING ...
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1answer
396 views

Make two virtual machines ping in virtual box

I'm trying to make two virtual machines communicate in Virtual Box, but without any success. Here are the steps I have done: I set both VMs in Internal networking mode (using VBoxManage modifyvm ...
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3answers
2k views

When I ping a server name, how is the domain determined?

On my machine, when I ping a server with fully qualified name, it works fine ping myserver.newcompanyname.com But when I ping the server name by itself, it fails. And it also indicates that it ...
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1answer
751 views

Checking if a computer on local network is a sleep or not without waking it

I would like to check if a computer on a local machine is in a sleep or awake, but without waking it on LAN. If I ping the machine then machine automatically wakes up. I don't want that. I just need ...
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1answer
608 views

Can Network Card cause high ping?

I have windows 7 x64 VoIP Modem. Arris Modem. 12Mb cable internet ASUS P5K motherboard with built in Atheros L1 network card. Few month ago my downloading speed started to slow down from 12mb ...
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2answers
928 views

unable to ping machine on WLAN

I've started accepting remote desktop connections on one of my machines. If i connect the machine to my router using an Ethernet cable i am able to ping it and connect to it remotely (using RDP). ...
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1answer
515 views

Slow response for ping to 127.0.0.1

I have a ping to 127.0.0.1 which varies between 1 and 23 milliseconds. I'm using a VIA Rhine II Fast Ethernet Adapter, and updating to the latest driver version 3.87.0.1 didn't seem to fix the ...
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915 views

Pinging an external server through OpenVPN tunnel doesn’t work

I have an OpenVPN server and a client, and I want to use this tunnel to access not only 10.0.8.0/24 but the whole internet. So far, pinging the server from the client through the tun0 interface works, ...
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270 views

Why my computer is not accessible over internet?

I connect my computer to internet through my airtel mobile (3G). This computer has no firewalls ON at all, neither OS's (XP) firewall nor any Anti-Virus's Firewall. ICMP also enabled. Why can't i ...
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1answer
171 views

Wi-Fi connected but can't go to any site

My Windows 7 laptop can connect to our Wi-Fi signal, I can sign in on Yahoo! Messenger, but I can't go to any site. I can access the Net on other devices. The issue started a few weeks ago, so I've ...
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4answers
6k views

How can I monitor my ISP's connection quality over time?

I've got a very bad ISP and want to monitor the connection quality over a month's time. At the moment I just wrote a script which logs ping requests to Google's DNS server 8.8.8.8. How can I do ...
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3answers
2k views

What is the difference between “could not find host” and “timed out” when pinging fails?

As the title states. I was trying to ping a bunch of servers whose existence I am not sure of. There are 10 servers in all. Two of them got ping timed out while the other eight have could not find ...
300
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4answers
38k views

Why does pinging 192.168.072 (only 2 dots) return a response from 192.168.0.58?

I mistakenly missed the dot off of an IP address and typed in 192.168.072. To my surprise I connected to a machine at 192.168.0.58 If I ping 192.168.072 I get responses from 192.168.0.58. Why is ...
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2answers
70 views

Latency problems at different times of the day [closed]

I'm with Telstra, and basically when it's early in the morning I get 190 ping the average for me, but when it passes 11-12am the ping slowly raises, by 3pm I'm stuck with 300 ping and up, it doesn't ...
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3answers
394 views

How does ping(8) work?

I was learning server/client basics, as part of my networking programming skills development. So basically I write server listening on some port, and client connecting to it and data flow goes on... ...
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2answers
314 views

apt-get works, ping doesn't

I'm using the shell on Ubuntu. $ sudo apt-get install emacs works fine, downloaded the packages and everything. On the other hand : $ ping www.google.com doesn't work : PING www.google.com ...
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1answer
1k views

Server 2008 R2 not responding to ping, RDP, port 80, etc

I have a Windows Server 2008 R2 Domain Controller. I can RDP, ping, and access the webserver while in the local area network on the LAN NIC. But I cannot RDP, ping, or access the webserver while ...
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2answers
1k views

How to suppress “Destination Host Unreachable” when running ping

When I run the ping command, I often do so with the goal in mind to learn when a particular machine has come up, e.g. from rebooting. But recently (read: in the last few years) I have noticed that ...
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1answer
587 views

aDSL dropped packets, but only when more than one computer is connected

I'm having problems connecting my LAN to aDSL. I run a Mac Mini server with a fixed IP address, and my own named, smtpd, httpd, etc. There are two other Ethernet computers, and an Airport Extreme ...
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1answer
626 views

No ping to localhost

Ping to e.g. my router on 192.168.1.1 or to google.com are fine, but ping to either 127.0.0.1, localhost or ::1 results in: C:\>ping 127.0.0.1 Pinging 127.0.0.1 with 32 bytes of data: General ...
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95 views

One sided ping on VM

I have my PC (Windows 7) and a Virtual machine running on it with VM Player (Windows XP). I have a server running Windows 7 and virtual machine with Windows XP and oracle instances. PC - ...
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64 views

Negative ping on OSX? [duplicate]

Possible Duplicate: Negative ping time? Running the ping command for a very long time, I get this result: 384063 packets transmitted, 380228 packets received, 1.0% packet loss round-trip ...
4
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1answer
3k views

Why does a PING reply require an ARP request for the originating hosts MAC?

I have a scenario as depicted below. Here two host machines are connected via a hub: Ok, so host-1 wants to ping host-2 and i have setup wireshark on a 3rd host connected to the same hub. Now ...
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1answer
1k views

Can't ping microsoft.com from a windows computer

I have an Acer Aspire One netbook (A0531h) that cannot access (or even ping) microsoft.com. I can access (and ping) any other site just fine. I just re-installed Windows XP Pro 5 mins ago (second ...