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Questions tagged [ping]

Ping is a mechanism to see if a remote host is reachable via an IP network

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There is an ARP address but I can not ping it

I have a Server under the Router, you can see the two IP addresses in the snapshot 141 are compatible, but the 140 one is incompatible from my Router because they are in the Server's same Interface. ...
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18 views

Multiple routes from router advertisements

Consider the following simplified setup: All devices are IPv6 enabled. Interfaces are configured in a way that we have 3 networks as shown. Router advertisments are enabled on both routers R1 & ...
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16 views

IPsec: Can ping hosts of other network with the firewall but not with hosts behind the firewall

I have a endian firewall and a established IPsec tunnel. The firewall is in the network 192.168.100.0/24 and has the address 192.168.100.1. The hosts that I try to ping are in the network 10.4.0.0/32 ...
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Pings just stop while concurrently downloading tgz log file bundle and pinging the gateway? [closed]

I was downloading some logs and while that was going on I was also pinging the gateway. All of this from a windows command prompt. The pings were pretty slow what with the excess traffic from ...
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37 views

Ping devices on local network via PC on Azure VPN

I'm trying to ping a device on a PC's NIC (Ethernet) with a static IP of say 192.168.1.1 (This IP is fixed, it cannot be configured or changed unfortunately) that is connected to an Azure SSTP VPN. I ...
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1answer
30 views

Creating a Zabbix item on the zabbix server to ping agentless host machine where vm (with agent) runs on

We're working with Zabbix (2.4.7), i'm going to call this the zabbix server. The zabbix server has many machines which it is monitoring. The machines have zabbix agent installed on them. The machines ...
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1answer
32 views

Not getting ping response on CentOS server hosted with DigitalOcean

I have a CentOS server with DigitalOcean , i am trying to ping "1c-bitrix.ru" , i am getting the following PING 1c-bitrix.ru (46.235.53.93) 56(84) bytes of data. but there is no response. I tried ...
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1answer
31 views

Pinging IP throws Request timed out but successful response is received on pinging the URL. Which n/w component may be responding to the ping on URL

I'm running a performance test on an application hosted on AWS. To check the network latency I tried pinging the URL which worked. But if I try to ping the IP address of the VM on which the ...
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1answer
15 views

Ping : How to differentiate between Host powered off and MTU too long?

I changed the eth0 MTU size to 1550(using : ifconfig eth0 mtu 1550) and ran ping -c 1 -M do -s 1500 -w 5 {some other IP} and The output I see is, --- x.x.x.x ping statistics --- 5 packets ...
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3answers
94 views

Is RTT theoretically the same regardless of ping origination?

Let's say you send a ping from device 1 to device 2. The result would give you the RTT. Theoretically speaking (because many variables are realistically in play), would the RTT be the same by ...
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1answer
73 views

Why Linux continues to use disconnected ethernet interfaces?

I have a Linux system with two ethernet interfaces, eth0 & eth1, which are used on the same subnet. At times, I see that even when one of the interfaces is disconnected (cable unplugged), Linux ...
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15 views

Tool for searching computer in network and alert after connection

I'm looking for some tool where I can schedule ping loop some computers in my network and after response some alert (email or custom command) will be fired. That tool will be working on Windows 7 ...
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20 views

Request timeout issue while pinging remote computer with site to site VPN Connection

I am having site to site vpn configured with sonic wall. Central site is having two subnets 192.168.1.x and 192.168.10.x. Problem is I can ping 192.168.1.x network, but cannot 192.168.10.x from remote ...
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34 views

NFX250 - Device | Unable to Ping Client from other Client in same Network, and with same Vlans

I try to understand, why I can not ping a Client from an other Client in the same Network. I have 2 VNF on my NFX - Device, which are in the same network and have the same Vlan - Id. This 2 can not ...
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1answer
116 views

How did Alibaba find my server and ping my node instence that I just made?

So I just created a new droplet on DigitalOcean and did a http-server in the root directory. 5 minutes later I see this in the logs: GET http://47.99.121.32:39169/Ip/Up?Ip=[my server ip]&Port=...
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1answer
19 views

How to prevent ping from terminating when not initally connected to a network?

Related: How to ping in linux until host is known? On Linux, ping has inconsistent behaviour. If it initially has no network connection, it terminates with the message user@machine:~$ ping 8.8.8.8 ...
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1answer
62 views

Server suddenly cannot ping itself, all other LAN computers can ping it

Today my Ubuntu 17.10 server suddenly lost its ability to connect to its own IP services. It seems to be working perfectly as far as other computers on the network are concerned; for example, other ...
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1answer
28 views

Verifying eth0 still works after adding eth1

I am using the Virtual Machine vmware with ubuntu. I've added a network adapter - eth1 and have assigned an ip address and mac address. but now that I try to connect to the internet, it doesn't work. ...
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0answers
45 views

Failure to ping two devices on the same subnet

Need some help with Routing. I do not understand how to make this work I have 2 Devices configured. One of the devices(somebox1) is configured with 2 interfaces and the Routing table looks similar as ...
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0answers
21 views

Cannot ping specific DVR on network

I have a WatchGuard firewall as our firewall/router, windows server 2008 R2 standard for DHCP, 2 windows 10 machines and a Hikvision DVR. Machine 1 could see the cameras no problem for about a week ...
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24 views

Mininet+ GNS3: pingall fails + dhcp doesn't work

I'm still a beginner, I'm facing some issues and I need your help. 1 I integrated mininet to gns3 successfully, the mininet VM can ping all the routers and other VMs, Also it can get an address ...
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0answers
30 views

Remote Client is unable to connect to TCP Server on VPS (Getting 10060 error)

I have searched all over the internet for the solution. Unfortunately, I could not get any working solution yet. Here is the story. I am running TCP server for small communication application on the ...
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2answers
73 views

How to identify PID of process that is generating lots of ICMP ping requests?

I have a box that is generating lots of outgoing ICMP requests. I am able to see a few happening every second with tcpdump -nni ens192 icmp. However, I don't have anyway of tracing these back to the ...
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1answer
90 views

Hyper-V hosts inconsistent network connectivity

I am having trouble with two of my servers that stopped being able to communicate (in a weird way). Servers are both Microsoft Hyper-V Server 2012 (the ones without GUI). Name: HVS1 Ip Address: 10.0....
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35 views

Why didn't an ubuntu host show up when pinging broadcast?

According to this question, I can ping broadcast and then parse the arp table to detect hosts on the LAN ... except that I have a fresh install of Ubuntu 16.04.4 LTS desktop that doesn't show up when ...
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1answer
117 views

Ping Link Local Address

We have an embedded networking device product which we first develop and test on Windows platform. It was observed that based on given conditions the device got a Link Local address - 169.254.106.235. ...
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0answers
17 views

bridges make ping stall

I had a problem that after connecting to wi-fi ping shows stalling. You can see here intervals of stable ping: I had from 10 to 20 bridges which was produced by docker, I decided to remove all of ...
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0answers
32 views

Sending ARP requests with SmokePing

I have been using SmokePing to monitor my local network for some time now and I'm happy with its graphs and email alerts. I use the fping probe and it works as expected. I found however that, every ...
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1answer
157 views

Connecting using ip address but not using web server name

I am able to access the website of a server (running Linux Mint 18 Sylvia) that uses an http like: http://myserver.house.pckhrest.edu I can not do remote connection to myserver.house.pckhrest.edu ...
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1answer
34 views

Why is this shell command always returning 1?

Here is a shell puzzle I can't answer (bash). This returns exit code 1: ping $HOSTNAME -c2 -W2 2&>1 > /dev/null This returns the correct exit code every time (2, 1 or 0). ping $HOSTNAME -...
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I can ping only some websites. At my wits end

I have a really strage phenomenon in one of our data centers. I can ping facebook.com, yahoo.com, deb.nodesource.com and a few others (DNS resolution works fine). But I can't ping google.com, archive....
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187 views

openvpn connected but can't ping

I'm currently installing an OpenVPN clent+server to have a remote acces to my server files. I've set up both side, generated the keys and now my client can be connected (with the green icon). Once i'm ...
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0answers
489 views

IPv6 Routing: Destination unreachable: Beyond scope of source address

I need a help with IPv6 routing, I have setup a Linux box with a IPv6 interface on eth2, and this interface is bonded with interface bond0 Details as below cat /etc/sysconfig/network-scripts/ifcfg-...
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1answer
193 views

ping to the 4.2.2.2 is not working. what to do?

Network connectivity is good. ping to the 4.2.2.2 is not working. I also want to know why we ping to the 4.2.2.2. ping -n 4.2.2.2
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1answer
855 views

Cannot ping 'server' after it reboots, how can I fix this?

The company I work for is using a Dell OptiPlex Micro PC (running Windows 10 Pro) as a server for some intranet resources (MS SQL Server databases and network licenses for some software). It also ...
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46 views

Which other tools to use if PING fails

I have checked this question and I understand the use of traceroute, but I do not understand why I should use ARP if PING fails. Details: I use Linux machine to ping the servers out of which some ...
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0answers
19 views

Ping sending/delivery to remote server is slow

I am facing some weird issue. I am trying to ping one remote server with 1 second interval. ping packet sending/delivery is too slow ( not response time). See below output. I am facing this issue with ...
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1answer
110 views

Reliable way to check server availability

I am using scheduler/API to scan target machines for Vulnerabilities(Using Nessus). But before the scan starts, I want to check if the servers are available or not for scan. I understand from this ...
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0answers
214 views

Unable to ping IP from same broadcast domain/subnet

I can't seem to get my head around this (hopefully) simple problem. I have 1 brocade and a Mikrotik router both connected each other have an IP address from the a /28 Public facing subnet. The brocade ...
0
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1answer
123 views

Ghost ping on a multi-NIC Linux system

I have a Linux system with 3 NICs & all 3 are on the same subnet. I've setup policy routing on the system with ip rules & ip routes using 3 tables. These are the IPs of the 3 NICs. ETH0: 192....
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0answers
59 views

CISCO ASA 5512-X internet traffic drops intermittently for a few seconds on the WAN after adding VLANs to the network

we recently separated our internal network into VLANs for better manageablility over WiFi. All the VLANs were created as sub-interfaces of GE1. The previously connected GE2 and GE3 were disconnected ...
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0answers
234 views

Ping latency between 2 directly connected PCs

I have a lot of experience with PCIe, some with USB, and little with Ethernet, so the following has got me confused: I'm evaluating the performance of a USB-to-Ethernet controller, vs a PCIE-to-...
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0answers
50 views

Printer stops pinging after 3 minutes from IPSEC remote side. Continues from local side

I have a very strange issue that I have come across twice now. It is making me go cross-eyed. We have two sites, one runs our server infrastructure and the other hosts end-users. There is an IPSEC ...
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2answers
289 views

Only one Windows 10 PC cannot ping/access two 2003 R2 servers as of recent

I have two older Win 2003 R2 servers acting as DNS, named DNS1 and DNS2. I have two Windows 10 Pro, hard-wired, same network, latest patches. One is a laptop and one is a desktop. The desktop can ...
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1answer
220 views

Turn off ping probe for openvpn

I have got a VPS with OpenVPN server and a client. The problem is, that it is not possible to ping my IP address (where the client is located) from the VPS because of IPS restrictions, and therefore ...
1
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1answer
61 views

No timestamp on standard error

Using fping and redirecting stout and stderr to the same file. fping -lDf IPlist >IPoutput 2>&1 The "host unreachable" error messages in the file have no timestamps. How do I get ...
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1answer
233 views

How to show unreachable messages when using fping

I am using fping to ping several devices from a text file and export the info into another file. fping -lDf IPlist >IPoutput This works, "Host unreachable messages" however do not get exported ...
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0answers
28 views

PPTPD client cant ping other client on VPN network

HI i have simple VPN network based on debian PPTPD server: enter image description here My problem is: Client can ping VPN server but VPN server cant ping client Client cant ping other VPNs clients ...
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0answers
17 views

Ping latency grouping

I'm currently experiencing a high packet loss, but more important, I'm getting a strange grouping of the ping delays in 3 "bands" when I graph them(using gping or my self-written tool that exports to ...
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0answers
204 views

`host is unreachable` error in fping

I have a list of websites, and I have to check if they are up or down periodically. I'm currently using phpservermon which is an all-in-one solution, but at 79 sites it's staggeringly slow (~3 ...