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Questions tagged [ping]

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

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Open-vSwitch how to connect two vlans in netns?

I have created networks namespace(netns) using ovs switch(as per diagram). I can ping for same vlan tag i.e., I can ping between old-m and new1 as well as ping between old-r and new2. If I want to ...
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30 views

Cant access servers on network, but I can access them from outside the network

So this is a very strange problem that I have never encountered before. Let me start with a diagram of the network. The problem is I have a few servers that are on my modem. Each server is assigned ...
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How to do Nagios check_ping for secondary IP in server?

I have a CentOS 7 server with two IPs each on interfaces eth0 and eth1. I want to check the ping status with Nagios for both IPs separately because, each IP is used for different purpose and in ...
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1answer
34 views

Who Can See My Ping Requests?

Diagram From my understanding: If a ping request is passed to another computer through the hub, the ping request can be seen by all 5 computers on the network If a ping request is passed to another ...
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Can't ping from Mac host to windows 10 guest in virtual box

Firewalls for both os is disabled. in VM windows network settings 'Attached to: Bridged Adapter' and Name : en0:wi-Fi(AirPort) are set. The virtual box network operations manager says "There are no ...
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How to make openVPN work over windows 8.1 firewall?

I've installed and configured openVPN by following the HOWTO from the official site. From Setting up your own Certificate Authority (CA) and generating certificates and keys for an OpenVPN server and ...
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1answer
89 views

Windows equivalent to nmap

This answer suggests netstat as an equivalent to nmap and also states that nmap for windows does not work. But I use nmap for an specific purpose and that is to see if a port of a network is open or ...
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Why Internet is not working when I connect two Virtual Machine on a network in VirtualBox?

I'm running two Windows Server 2003 on VirtualBox and my host PC is Windows 10 laptop. I created two host-only ethernet adapters to practice router configuration using GNS3 in future. I set the ...
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Linux machine cannot ping6 or ping Windows machine

I am trying to communicate via IPv6 between a Windows 10 machine and a Redhat 7.5 Linux machine. I am testing my connection by trying to ping both machines from each other's terminal. I can ping both ...
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1answer
61 views

What would happen if I increase the ping packet size

I am a newbie to this networking thing and I wonder something that if I increase the ping size to 65.600, how does it affect the internet traffic? ping –1 65500 [IP address]
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1answer
41 views

How does a organization DNS server keep track of hostname => IP address mapping?

Within my organization network, if a machine has computer name(hostname), say, desktop-x, i am able to ping to that machine using just "ping desktop-x". But the ping actually converts desktop-x to ...
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63 views

Ping between computers work randomly

I've decided to create some kind of working subnet. I've connected my main router (that's connected to the internet) to the second one and connected three computers on that one. For those three ...
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Only allow pinging in one direction

How do I allow a ping from the first PC to a second one but block a ping from the second PC to the first one? I created this firewall rule on both Mikrotik routers: add action=accept chain=forward ...
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28 views

Iptables, rerouting all locally generated packets

I am trying to reroute all locally generated packets to a specific IP using the following IPtables rule: iptables -t nat -A OUTPUT -j NETMAP --to 127.0.0.2/32 This seems to work with TCP based ...
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1answer
30 views

Is “General Failure” the intended response after you put your computer to sleep while pinging something?

I'm curious as to what normally happens if you put your computer to sleep while you're pinging something. I get a few lines of "General Failure" immediately after waking the computer up. I assumed ...

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