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

learn more… | top users | synonyms

1
vote
1answer
735 views

Ping6 fail on linux

I have 2 linux box configured with IPv4. I have tried adding IPv6 to them. I have issued this commands on box1: ip -6 addr add fd32:2d7f:f3c1::1/48 dev eth0 And I get this: inet6 addr: ...
1
vote
2answers
116 views

Ping don't resolve www.domain.gob.sv but it does resolve domain.gob.sv on server

I've been with this WEIRD problem on my server. I've been setup a DNS server (BIND) for two domains, but somehow in one of them do not resolve with www. I tried with CNAME an A record with no luck. ...
1
vote
3answers
748 views

DNS issue? I cannot ping FQDN, yet I can ping alias (CNAME)

I'm experencing weird DNS issue and I was wondering if someone has any ideas: # ping -c1 test.XXX.local ping: unknown host test.XXX.local # ping -c1 test PING test.XXX.local (10.52.223.41) 56(84) ...
1
vote
2answers
586 views

ping and identify Cisco model without physical access or login?

There are several Cisco devices on my network which I can find with ping or nmap but I have no idea what the type (e.g. switches, routers) or specific model is. Is there some way to find this out ...
1
vote
2answers
665 views

Ping size limit - FreeBSD

In the man page for FreeBSD ping: -s packetsize Specify the number of data bytes to be sent. The default is 56, which translates into 64 ICMP data bytes when combined with the 8 ...
1
vote
2answers
4k views

Monitoring: What does mysqladmin ping report?

I'm trying to monitor whether our mysql server is up. The command I'm using for this is: mysqladmin ping It will return the following: mysqld is alive Does this just check whether the process is ...
1
vote
1answer
147 views

Issues connecting to SQL Server

I'm trying to boot up a sitecore application. Got the source code, set up my local IIS, but for some reason I'm getting the following error: A network-related or instance-specific error occurred ...
1
vote
1answer
298 views

Unable to connect to device across subnet

I have a network printer (Sharp copier) that I am unable to contact from a different subnet . I am on 192.168.100.x. The printer is on 192.168.200.x. I can ping (or remotely connect to) every other ...
1
vote
2answers
79 views

Experienced Lagging Issue on 2 x 2 MBps E1 link

From client pc to server (Windows Server 2008), the WAN connection is using 2 x 2 MBps E1 link. 1 <1ms <1ms <1ms 10.101.7.254 2 4ms 15ms 4ms ...
1
vote
2answers
101 views

Relating ping to perceived browser GUI response

We periodically get complaints of poor GUI (browser page) response that we need to explore. I am looking for a quick and cheap first check to see if the issue is network latency, or server ...
1
vote
2answers
3k views

Amazon EC2, still cant ping or “http” it

I am new at Amazon Cloud technologies. I ve set up an Amazon Linux instance created my keys and assigned elastic IP. Also, I opened all TCP, UDP, ICMP ports(ok, it's very dangerous, but I am using it ...
1
vote
2answers
710 views

The ping response time doesn't reflect the real network response time

I encountered a weird problem that the response time returned by ping is almost fixed at 98ms. Either I ping the gateway, or I ping a local host or a internet host. The response time is always ...
1
vote
2answers
4k views

DELL 6224 switch strange behaviour

I'm having a hard time with my DELL 6224 switch. This switch is the center node of my network, trunking between other switches, VLANs and routing packets. The network traffic that it's been handled ...
1
vote
2answers
208 views

measure server speed and deduct the network latency

I want to measure the login via htaccess to some servers (how fast is processed by the server) and I want to ignore the time lost on the newtork. So should i deduct the ping latency once or twice? Or ...
1
vote
1answer
1k views

I can't ping from my server to google.com, how can I diagnose issue?

I'm on my server and I can't ping anything outside. I tried for example google.com. How can I diagnose this issue? I can ping my localhost (ping works) This is my traceroute to google.com: ...
1
vote
6answers
1k views

ping response time

I have two sites hosted on two different data-centres. Recently one site has become very slow. The ping response from application server to DB server is not fast enough. How do I investigate the ...
1
vote
2answers
13k views

Can ping IP address and nslookup hostname but cannot ping hostname

On a windows 2003 server I can nslookup www.google.com which returns Server: localhost Address: 127.0.0.1 Non-authoritative answer: Name: www.l.google.com Addresses: 74.125.79.104, ...
1
vote
3answers
4k views

VMWare/VirtualBox: Ping don't work in Host-Only network adapter from windows host to linux guest

Scenario: Windows host running XP SP3 (Virtual) Ubuntu Server 10.04 (fresh install, only selected "LAMP Package" option during installation. Tested on VMWare Player / VirtualBox I can ping by ip ...
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 ...
1
vote
2answers
96 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 ...
1
vote
1answer
44 views

How to confirm Nginx `deny` is working?

I setup Nginx to deny a specific IP address and would like to confirm that it is working. How can I do this? In principle, I'd like to do something like: ping -from <blocked ip address> <my ...
1
vote
2answers
1k views

Cannot ping centos7 host [closed]

I am doing this for the first time, so I may be missing something very basic. I installed Centos 7 on a new server and have successfully gotten the connectivity working. Now I want to be able to ssh ...
1
vote
2answers
167 views

Why woud ping fail but not traceroute

For a few days now I started making the interesting observation of a machine intermittently not responding to an ICMP ping, while it still responds to an ICMP based traceroute (specifically set via ...
1
vote
1answer
241 views

Did you see similar icmp ever? [closed]

ping ya.ru PING ya.ru (213.180.193.3) 56(84) bytes of data. 64 bytes from www.yandex.ru (213.180.193.3): icmp_req=1 ttl=60 time=97.6 ms 64 bytes from www.yandex.ru (213.180.193.3): icmp_req=2 ttl=60 ...
1
vote
2answers
860 views

Windows XP VMs on ESXis not pinging each other

I'm running a virual environment of this sort. There's a UCS box that has several VMs. I've setup 3 Virtual ESXi VMs and vCenter Server appliance. Using the appliance, I installed 3 WinXP VMs on the ...
1
vote
1answer
575 views

IPv6: ping6 from foreign host works, but cannot ping6 on same host [ubuntu 12.04]

I have a strange issue with ipv6 on Ubuntu 12.04. There are two hosts, directly connected to the internet. Both have assigned a /64 network. They are properly configured with a /128 endpoint each and ...
1
vote
2answers
8k views

Intel 82579LM Gbit Ethernet Controller - magic packet (WOL) right after ping is not working

I am experiencing a very annoying and mysterious behavior when sending magic packets (for Wake On LAN) shortly after pinging an Intel 82579LM GigaBit Ethernet Controller (the onboard ethernet ...
1
vote
2answers
1k views

Is it bad that latency for our internal LAN varies greatly within the 15 - 40 ms range?

I've always thought the "typical" latency for a small office wired Ethernet network would be <5 ms. However, pinging the default gateway yields an average of 14 ms, and any host is around 30 ms. ...
1
vote
2answers
435 views

My server doesn't receive responses from pings

if I SSH into my server, and I try to ping another server, I never see the responses. This seems to happen only on urls. I've been able to ping a couple ip addresses. I first noticed this problem ...
1
vote
2answers
7k views

PING: timed out, host unreachable and succes all at once

Is there any logical explanation for this output? I can understand all of the three different results, but all three in one single run of PING? Could my router be defective? I have no internet ...
1
vote
1answer
3k views

Icinga/Nagios to ping different machine on local network

I have 3 machines, all remote IPs and all of them running nsclient++ with remote and local IP addresses: 46.*.*.1/192.168.1.1 46.*.*.2/192.168.1.2 46.*.*.3/192.168.1.3 I want nagios/icinga to ...
1
vote
1answer
66 views

Measuring latency to a firewalled server

The firewall in front of this server is blocking ping requests. Is is still possible to measure latency to this system? If so, how?
1
vote
2answers
1k views

Pinging same address multiple times

I am just wondering if it is possible to ping the same ip address from the same source multiple times (ie fast enough so they get pipelined) and still get a valid result. By a valid result, I mean ...
1
vote
2answers
8k views

Configuring TMG to allow a connection through the firewall

Here's the basic outline of the problem: I'm trying to ping from 192.168.0.2 to 192.168.10.2, but the ping dies on reaching 192.168.10.1. Obviously TMG is blocking it with the firewall. :) ...
1
vote
2answers
359 views

Enable PC behind router to be pinged

I've got a Windows 7 PC running a webservice accessing the internet through a standard router. I forwarded the required ports in the router accordingly and was able to use the service successfully ...
1
vote
2answers
490 views

XP - ping changes routing table?

I have got a real strange behaviour with one of my XP-Sp3 machines. Setup: A Server in the lan (192.168.5.0) proviedes access to all roadwarriors in 10.8.0.0 The DCHP has a static route for all ...
1
vote
2answers
231 views

Win 7 Netbook refuses to ping JetDirect card (all other PCs work)

I have an odd thing occuring here. From a Windows 7 netbook, I cannot ping an HP printer on the network, while all other machines (Win7/Vista) can. And the netbook can also ping everything else on the ...
1
vote
6answers
1k views

Client A can ping server S, but client B cannot

I moved the question to here from stackoverflow.com http://stackoverflow.com/questions/2917569/unable-to-ping-server-from-client-b-but-able-to-ping-from-client-a-please-help I am trying to configure ...
1
vote
1answer
627 views

Weird response from ping

I have a server called "Otto" This has an internal IP address of 10.0.10.210 We have had a power failure today, and, although the server room is protected by UPS, things haven't worked properly ...
1
vote
3answers
35k views

Can't ping certain IP's on same subnet?

Firstly all devices are ON and have an active/working network connection. Secondly the device I'm trying to ping from is pingable from the devices I'm trying to ping! Right, we have a secure VPN ...
1
vote
3answers
2k views

Light packet loss through router

I just recently got a fiber line installed into my office, and with the exception of an odd bit of trouble that we're having, things are working good, and the network response is really amazing. The ...
1
vote
2answers
10k views

Issues with Mac OS X pinging

I am trying to ping to IP's and host addresses, and this is the result, I am not sure this is a error but I am attempting to use a vpn and I can't get it to work. Pinging the IP should be working but ...
1
vote
2answers
610 views

Packet Loss with Cisco 2621 Router

I'm working with a Cisco 2621 and NAT to map ip addresses to machines in my cluster. Starting yesterday, I noticed heavy packet loss (60% loss reported by ping) to one ip address mapped to three ...
1
vote
2answers
2k views

Juniper firewall - large pings for testing

Is there an way to permit ping packets larger than 1472 through a Juniper SSG520M firewall? "Ping of Death" and "Large Size ICMP Packet" protection has already been disabled under the 'Screening' ...
1
vote
3answers
425 views

VPN failure between two remote offices

I have three offices all with broadband routers feeding into Server 2003 running Routing and Remote Access that provides the clients with internet access. I have setup VPN connection between site1 ...
1
vote
1answer
60 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 ...
1
vote
1answer
42 views

Possible route, but denied?

If ISP (A) can be routed to ISP (B), and ISP (B) can be routed to ISP (C) and vice versa, then why ISP (A) and ISP (C) can't be routed through ISP (B) to each other? The packets are routed like this ...
1
vote
2answers
246 views

Arp request for a non-existing host in a local network

I'm wondering why I get the following result : if I try to access a non-existing host on my local network, for instance using the command ping, I see with the tcpdump arp command that there is every ...
1
vote
1answer
441 views

ping -a not resolving hostname for one host on Windows 7 client

ping -a 192.168.99.3 does not resolve hostname for vcl.nailit.lab, but does for other hosts on network like pfsense.nailit.lab. nslookup vcl.nailit.lab and ping vcl.nailit.lab work correctly. See ...
1
vote
3answers
8k views

Can access website, but can't ping it, nor access via FTP

I'm having a problem connecting to a server by other way than HTTP. Connecting via FTP ends with timeout, as well as pinging: C:\Users\folmert>ping wroclaw-elektryk.pl Pinging ...