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

learn more… | top users | synonyms

1
vote
1answer
45 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 ...
1
vote
4answers
3k views

Sonicwall NSA2400 - No internet access

We've got a SonicWall NSA2400 configured with a LAN (X0) and a WAN(X1) interface. It was setup and working fine until just recently when a temporary worker changed some settings most likely NAT. We ...
0
votes
4answers
2k views

NSLOOKUP and NBLOOKUP give one IP address; PING finds another

In a Windows Server 2008 domain the on-site domain controller serves as both DNS and WINS server. It is also a DHCP server. One workstation is used as a platform for all admin of the various servers ...
-1
votes
0answers
20 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 ...
-1
votes
0answers
8 views

iperf issue:software caused an connection abort [closed]

I am trying to run iperf from windows pc to ubuntu pc, I am getting an error software caused an connection abort. Where as I am able to ping is going through without any issue
0
votes
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] ...
0
votes
1answer
10 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 ...
0
votes
1answer
65 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 ...
0
votes
1answer
1k views

OpenVPN run script after tunnel is set up

I'm having a hard time figuring out exactly how can I update my A records on my cloudflare account. I have already set up a script that checks for IP changes, and pushes the changes through the ...
1
vote
0answers
17 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 ...
5
votes
1answer
2k views

Ping not working from tap interface attached to bridge interface with ip on same subnet as that of bridge to outside

My requirement is to create a multiple tap interfaces, each with ip address on same subnet. I tried this by creating a bridge br0 (192.168.1.199) ...
2
votes
5answers
8k views

Max ping response time?

I'm wondering what a maximum (practical) ping response time might be. As far as I know, there isn't a max defined anywhere (TTL, but that's hops, not time). As I think about it, I'm not sure I've ...
0
votes
2answers
4k views

Cannot ping linux (RedHat) machine by hostname

For some reason, a linux (RedHat) machine that I have is not ping-able by hostname! It is ping-able by IP address though. I have the same network configurations as another linux (RedHat) machine ...
4
votes
2answers
1k views

what does `pipe <number>` mean in `ping` output?

While running a test to diagnose some alleged network problem, I got this output from ping: --- r01c01b11n02 ping statistics --- 30000 packets transmitted, 29995 received, 0% packet loss, time 6309ms ...
1
vote
1answer
3k views

Cannot ping my domain-joined server - Can only ping domain controller - host unreachable

I have a HyperV Server hosting a Domain Controller VM (192.168.1.50) and another VM (192.168.1.51) joined to this domain. I have: domain controller as DNS server forward lookup zone for the domain ...
18
votes
11answers
84k views

Is there any way to ARP ping on Windows?

On Linux and other systems, there is an utility called arping which can be used to send ARP requests ("pings") and show the answers, much like the "ping" utility but using ARP instead of ICMP. Is ...
7
votes
3answers
9k views

Why can't I ssh or ping my brand new Amazon EC2 instance?

I just created a free EC2 instance with all the defaults. It says it's running in the AWS Management Console. On the "Instance Actions" menu, I click "Connect". I copy the DNS name provided (looks ...
1
vote
0answers
39 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 ...
0
votes
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
vote
1answer
41 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 ...
1
vote
0answers
34 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 ...
2
votes
2answers
64 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 ...
0
votes
0answers
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 . ...
4
votes
2answers
4k views

VirtualBox bridged adapter can ping but can't curl

There is a delicate server running Ubuntu Server 12.04.2. There are 4 useable IPs for this server: A, B, C, D. The server itself takes A. The server is now running two VirtualBox guests, both with ...
8
votes
9answers
16k views

OS X: Can't Resolve Windows Machine Names [closed]

I'm running a mixed environment at home and at work. My server machines are Win Vista, and I have a Unibody Macbook Pro running 10.5.7 On my mac, I can ping some home windows by name (If I use the ...
1
vote
0answers
25 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 ...
4
votes
7answers
3k views

Scan for connected, powered on computers on a network?

I want to scan for powered on computers on my LAN and gather logs about that. I tried nmap but it didn't work very well (a lot of switched on computers are not getting detected). nmap -sP ...
1
vote
0answers
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 ...
0
votes
1answer
65 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 ...
-2
votes
2answers
131 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 ...
1
vote
0answers
50 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 ...
-1
votes
1answer
73 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 ...
2
votes
1answer
112 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 ...
0
votes
1answer
73 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 ...
15
votes
10answers
53k views

How can I set a short timeout with the ping command?

I am trying to write a script that lists all the hosts on my LAN (there a about 20 of them) and writes the ping status next to each host. I have the DHCP leases file, so I have all the IPs (say, ...
2
votes
2answers
292 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, ...
-3
votes
3answers
69 views

Server monitoring reports ping failed

i run a dedicated server and my hosting provider sent me an email reporting this and in 20 mins the service is recovering. i am running centos with softlayer Service Issue: SERVICE PING failed for ...
2
votes
0answers
65 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 - ...
1
vote
1answer
33 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 ...
-3
votes
1answer
49 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 ...
308
votes
18answers
767k views

Ping a Specific Port

Just a quick sanity check here. Can you ping a specific port of a machine, and if so, can you provide an example? I'm looking for something like ping ip address portNum.
2
votes
3answers
12k views

Ping returns different results if asked ip address or hostname

Alright, I've got an irritating problem. When I ping one of the servers in my company with ping 192.168.1.62 I get my box ldmmit1 as the result. But when I use this line ping ldmmit1 I ...
0
votes
2answers
1k views

Cannot ping gateway

I replaced my aging fileserver with a new server running ESXi 5.1 and migrated my fileserver in a virtual machine running on it. Now I have the following problem with this VM: I'm getting the ...
-1
votes
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
votes
1answer
74 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 ...
0
votes
1answer
36 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 ...
1
vote
2answers
139 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 ...
1
vote
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 ...
4
votes
5answers
6k views

Ping Equivalent For Checking If A Port Is Open

How do I check if a port is consistently alive? For example, I could use ping 192.168.1.1 -t > results.txt This will ping 192.168.1.1 continuously so that I could monitor it. Is there an ...
0
votes
3answers
7k views

pptp on Ubuntu server can't ping other machines on the LAN

We have a simple pptp setup on our windows 2k3 server. So far all clients can connect just fine, mac and windows. However I tried connecting an ubuntu server using pptp and the connection is fine I ...