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

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ibping error: “can't serve class 50 on this port”

I try to run an ibping server on a machine with an infiniband card: ibping -S I get this error message: ibping: iberror: failed: can't serve class 50 on this port Any idea to solve the problem? ...
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10 views

Cant Ping Website but can access to browser [migrated]

I'am trying to ping onlinejobs.ph but i can'ping it admins-MacBook-Air-6:admin$ ping onlinejobs.ph PING onlinejobs.ph (184.72.40.136): 56 data bytes Request timeout for icmp_seq 0 ...
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1answer
44 views

Router configuring without NAT

i just addes a fw to my network. it manages 2 WAN using load balancing.enter image description here a router i reached to configure, while the other no. in my netgear router i reset all settings, ...
2
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1answer
55 views

A non-recoverable error occurred during a database lookup

Short version: Why does Test-Connection report "A non-recoverable error occurred during a database lookup" for an offline host on a different subnet? I'm using PowerShell to ping a remote host with ...
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1answer
28 views

Finding ip address from mac addess

I have router in bridge mode which is installed Openwrt and I want to find IP address of devices which are connected to the router. Since router is in bridge mode, I can not find IP from DHCP leases, ...
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16 views

Unable to Ping over wifi [duplicate]

We have 2 PCs and 4 laptops in the office, and we use D-Link 2750U to connect to internet. All the computers can connect to the internet successfully. One thing that I noticed recently, is that PCs ...
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24 views

ping to windows embedded standard 7 not work

In network we have 2 computer. From pc1 we run ping command to pc2 - no pong(response), but vice versa ping is ok. We unplugged pc2 from switch and connected other pc - ping worked in two directions. ...
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1answer
46 views

what is the use of -U option in ping command?

I was learning ping command and their options. In ping -U option is used for full user to user latency. There is no difference for ping and ping -U option in output. $ ping google.com PING ...
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1answer
46 views

fast ping response, latency on traceroute

I have a very strange problem. In short pings to my wireless AP are low (around 1ms), however, once I do a traceroute, the latency to the AP (1st hop) suddenly jumps to ~1000ms. Any ideas what may be ...
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21 views

Proper packet size for ping test

I have been seeing an increase in network related issues lately and have started running some ping tests to different offices in the company to try and get a baseline. I want to run continuous pings ...
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1answer
33 views

my website can get ping but status always “Waiting” when visiting via browser

When i tried to use CMD.exe and then typed : ping fgroupindonesia.com it returns a true respond such as : C:\Users\admin>ping fgroupindonesia.com Pinging fgroupindonesia.com [219.83.68.83] ...
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1answer
14 views

SafeNet Sentinel RMS server needs to be pinged before it works (routed across VLANs)

I have 2 separate CAD programs that use the Safenet Sentinel RMS Server (Aladdin) to check the license. After boot, they cannot find the license server. The license server is configured using its ip ...
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1answer
66 views

can not ping any hostname

I recently got a server from a company for new mail service configuration but now i have a amazing problem! "ping google.com" not working and returned "ping: unknown host google.com" , but ping ...
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20 views

Delayed Ping of a link-local address with Windows 7/Server 2008 R2/Server 2012 R2

I have a strange effect here, which I do not understand. PS C:\Users\user1> ping fe80::219:bbff:fe0e:c600%16 -t Ping wird ausgeführt für fe80::219:bbff:fe0e:c600%16 mit 32 Bytes Daten: Zielhost ...
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47 views

Ping problems with two interfaces, same subnet, direct connections to two separate hosts

I have a configuration of a client machine (Ubuntu 14.04.2 LTS) that directly connects to two server machines. The server machines--while on the same subnet--cannot route to each other. Packets must ...
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2answers
70 views

When rebooting a linux client, DNS doesnt work for some time

I have a linux client that when i restart it doesnt answer my ping requests on its DNS name, but it does on its IP. Say that i have a hostname of "Linux" with ip "192.168.1.100" .. My router is ...
1
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1answer
53 views

Cannot ping through one of the network interfaces

Setup ubuntu linux VM ( virtual-box) is configured with two interfaces, eth0 and eth1. eth0 is on a bridged network and directly connected to external network. eth1 is on "nat network", which is ...
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2answers
66 views

Ping only works twice

I have created a vm inside a xen host. By following this guide, I have managed to ping www.google.com, but it only ping-pongs twice before getting Destination Host Unreachable. If I restart the vm, I ...
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7 views

Can't connect to the IBM bladcenter switch

I got IBM 8677 bladecenter with hs21 type 8853 & 7995 I connect the Ethernet SM I\O module , configed it in the IMM to same subnet as my host. I dont know why , but I cant telnet it or ping it . ...
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32 views

Ping buffer size and time to respond on Windows HP Blade

I can see different time to respond when using large ping buffer size for one of our HP Blade servers. When using default buffer size, time to respond is the same on all servers. As a first step to ...
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17 views

trouble setting up a small network- Can't Ping BorderGateway

RTR Configuration : http://pastebin.com/Pg4SxG65 Network Topolgy: https://goo.gl/h043A7 BR: its an RV320 if you guys need some info let me know. It's running DHCP to provide ip address to the ...
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42 views

perl smokeping false packet loss (solved)

I'm getting false packet loss from time to time. The period lasts about month, you can see it on graph. We checked it using the same fping command and got no loss at all. So maybe were are hosts limit ...
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2answers
165 views

Does Ping ever uses DNS cache [closed]

I have couple questions. Firstly, this morning I was running ping against google.com and it returned me an address 216.58.220.14. Now what strange happened was, any time after the first ping all ...
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1answer
70 views

Can't browse my site outside of my country

I've hosted an asp.net mvc 4 website on IIS 8 and it's perfectly running from my country. But whenever someone tries to browse from other countries, it's not working. This is my site. I've allowed ...
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64 views

Sending Ping at fixed packet size as jumbo frame is not working in linux

I have to hosts connected each other with ipv4 address each other. I modified the MTU of each one to 9000. Then I want to send a Ping request at fixed packet size +1500 to verify that can send and ...
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1answer
94 views

Default gateway and ARP confusion

I have the following configuration (I'd post a pic but not enough rep for more than 2): PC1 (10.0.2.10/24) and PC2 (10.0.2.137/29) are connected to a hub, which is connected to a router on interface ...
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1answer
123 views

Pinging Hostname results in reply from 2 different IP addresses

I have an odd behaviour on my Windows 2008 R2 server, when I ping a hostname of another system, my first reply has a different IP address then the following replies. For example, if I was to ping ...
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1answer
89 views

First ping (to any destination) fails from switch but not from router

I've got a basic network setup, just doing NAT to a single public address to an internal /24 without any VLAN's or fancy routing. Both my router and switch are running Cisco IOS 12.x. My ...
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2answers
301 views

Cannot ping remote server; how can I debug local networking misconfiguration vs my IP is blocked?

I manage a KVM VPS at 104.143.14.103 that for some reason cannot reach http://pecl.php.net. When I ping the IP address of the PECL server (104.236.228.160), to make sure that it isn't a DNS problem, ...
2
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0answers
80 views

Ubuntu server 15 during ping (DUP!) what does it mean

For some time during ping 192.168.0.2 I have something like this (DUP!) something is wrong with my network card or switch? Image Ubuntu server 15 - *192.168.0.222* Windows server 2012 - ...
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1answer
41 views

How to find the initial values of TTL for your current operating system?

In this answer to a question related to interpreting the values of TTL from a ping operation it is said that the TTL values vary depending on the operating system. I understood more or less the ...
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1answer
50 views

Get request IP from dns lookup

I have been looking to find the IP from a machine that asks my DNS server for a CNAME resolution. For example: User A pings to DNS server 1 on test.myserver.com, this server has a CNAME resolution ...
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1answer
25 views

resolve a previously failing url without editing resolv.conf

I want to ping a some website from my machine. But currently its failing to resolve ubuntu % nslookup somewebsite.in ...
3
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1answer
78 views

Can't Ping other local ips on l2tp vpn connection, getting: ping: sendmsg: No such device

I have setup an l2tp client using xl2tp to connect to an l2tp vpn server. The server connection requires that the connection be setup WITHOUT ipsec. So I have set up a basic xl2tp connection. The ...
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1answer
37 views

Find best AWS EC2 zone for given IP address

Is there an easy way to determine AWS EC2 region with lowest ping to given public IP address? There is a server hosted by third party. I only know the IP address of the server. Given that I'm looking ...
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2answers
193 views

How does Pinging from a private IP behind NAT to a public IP work

Recently I realized that ICMP does not contain any ports, so I tried to Ping from my wireless connected laptop to public IPs(of course it worked!). In a typical configuration, a local network ...
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1answer
25 views

Why cannot I query DNS with `host -a`, but yes with `host`?

I changed my DNS and I'm having this problem: > host grupoesoc.es grupoesoc.es has address 178.62.234.188 grupoesoc.es has IPv6 address 2a03:b0c0:2:d0::127:6001 grupoesoc.es mail is handled by 20 ...
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2answers
82 views

Pinging a host from a router through the selected interface

In a typical Cisco router it's possible to ping a host from the router's OS. When the ping packet leaves router (call it R1) through the fa0/0 interface, the source IP of that packet it set to the IP ...
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64 views

Cannot connect to WebDAV when ICMP (ping) is disabled on a server

I have linux as a Webdav server and Windows 10 as a webdav client. I could successfully connect to the webdav server from Windows using: net use * https://mywebdavserver.com/webdav /USER:user pass ...
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1answer
69 views

OpenVPN can' reach client Lan

I have a question about OpenVPN, I had made a "dev tun" connection between my office network and a VPC on Amazon.But.... in few words: Everething work, except: i c'ant ping the client Lan from the ...
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86 views

My server doesn't respond to ping6

I'm trying to enable ipv6 on my webserver. The server runs FreeBSD 10 and I'd like to enable ipv6 access to my websites. That's the long term goal. The goal here would be at least to have a server ...
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0answers
36 views

CheckPoint UTM-1 Edge does not relay ping reply out of vpn

I have Palo Alto firewall and Checkpoint UTM-1 Edge with established vpn. On Checkpoint UTM-1 device Firewall is off, AntiVirus is off, Security level (low), vpn excluded from firewall. Vpn is ...
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1answer
180 views

What Does “ping -f” Do In The OS X Terminal? [closed]

I've recently read about the command in the OS X terminal, "ping -f (Target IP)". I haven't been able to form an understanding on the command even after looking through numerous online articles. I ...
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1answer
66 views

I can access http, https on server, but can't ping the server behind sonicwall tz500

I am not sure if this is possible or not. I have set up some web servers and ftp servers that are statically NATted behind a sonicwall tz500. I can access all via ftp, http, https. I have included ...
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67 views

802.1q VLAN echo replies do not include VLAN ID

I am running a SLES11, SP4 kernel on 2 systems. I have 2 NICs connected through a Netgear GS724T switch. I have configured VLAN 400 on the switch. On system 1, I create a VLAN 400 on eth0 called ...
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2answers
144 views

Servers can only ping to domain controllers and not to each other

I have made my own test environment and I am having problems with pinging other servers from one server. All servers can ping to domain controllers and they get responded back. When I ping from a ...
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2answers
115 views

allowing ping packets from specific ip in windows firewall

How do i allow ping packets from a specific ip from my internal network in windows firewall. Whenever, i tried to set custom inbound rules in windows. There does not seem to have a way to achieve ...
2
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1answer
102 views

Interpreting PING Results

I am on Windows and LAN using the command line PING in this format: ping -a -n 5 -S <source ip> <destination ip> For the most part, it does what it is supposed to do but I have noticed 3 ...
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4answers
670 views

Why am I getting different results from two servers that located in the same destination network?

There's two servers with the same network IP, and the only difference between them is the last two numbers like: 37.211.15.247 and 37.211.166.178. The Hosting Provider claims that the subnet mask for ...
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20 views

Why do i get different results from two servers that located in the same destination network? [duplicate]

There's two servers with the same network IP, and the only difference between them is the last two numbers like: xx.xx.15.247 and xx.xx.66.178 When i try the command Tracert (Traceroute) to test the ...