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

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Can't ping host from vmware guest using bridged networking

Host is Windows 7 Guest is Ubuntu 11.04 Network adapter is wireless I can ping other computers on the network but not the host. No firewall are involved. Sniffing the traffic with wireshark it ...
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1answer
536 views

High ping everywhere except one PC

I have a network with a really high ping (usually more than 500ms) except for one laptop. And in that laptop the ping is usually 5ms. I've tried: - using same model laptop - compare lan driver ...
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4answers
994 views

How can I establish if a 566ms average response time is any good for my server?

One of my servers averages 566ms response time as measured by Pingdom ( pingdom.com ). Is this a good score? Should I be doing more to optimise it?
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3answers
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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 ...
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3answers
13k views

Ping from specific network adapter on Windows

Hey, I've been troubleshooting network issues on servers with 2 NICs and laptops with wired and wireless cards. How can I force the PING and TELNET to be sent from a specific adapter? I know it's a ...
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2answers
3k views

Bash ping successful program

I'm thinking that this needs to be changed to a while loop because, at the moment, it'll wait untill all 10000 pings are done. I need this to return when the ping is successful. What are your ...
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2answers
923 views

What does this output from HPing mean?

hping command: hping3 -G --rroute $domain -i u1000 Result: len=80 ip=127.0.0.1 ttl=64 DF id=0 sport=0 flags=RA seq=176 win=0 rtt=0.2 ms (same route) len=80 ip=127.0.0.1 ttl=64 DF id=0 sport=0 ...
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1answer
161 views

Restart server if gateway is not responding

I need to restart a windows 2008 server only if the gatwaay is not responding. Is there a way to conditionally ping the gateway and if the gateway is not reachable a restart is triggered? Thank you
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4answers
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How does TCP Ping or Traceroute Work?

How does the tcp ping or traceroute work? Does it take in account just the time it takes to establis the TCP handshake? Also in ICMP ping you can specify the packet size, can this be achieved in TCP ...
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1answer
36k views

How to stop ping output?

I run ping <hostname> command in console and it now outputs hundreds of those rows now (icmp_seq=526 ttl=64 time=0.026 ms), icmp_seq is like 500 or more now. How to stop it? (linux debian) ...
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2answers
2k views

How network devices affect TTL

When I do a ping, I can see the TTL value for each packet. For every router that I insert in between my computer and the router that connects to the internet, the TTL value goes down by one. However, ...
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2answers
330 views

Odd results from ping

When I run this on an Ubuntu box: sudo ping google.com -c 25 -l 25 I get about 1 line back every 2 seconds despite the fact that it should (if I'm reading things correctly) send out all 25 packets ...
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3answers
118 views

I want to be notified when a LAN IP goes live

Is there a tool or something that can notify me whenever a local IP goes live on my network. It could be that it continually ping that IP and display a notification to me whenever that IP return a ...
0
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1answer
401 views

Westell 7500 - unable to reach static IPs from external network

I am trying to troubleshoot a network configuration at a remote site. It's a standard configuration for us, that we use across multiple sites. The only difference here is that this ISP uses PPPoE, ...
0
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1answer
335 views

What can affect a server's ssh console respond time?

I have two servers. The ping respond time of them are both about 210 ms. But the ssh respond time is quite different. One is fast(~200ms) while another is quite slow(~1s). CPU and memory of these ...
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0answers
530 views

Time Capsule giving high ping times for wireless

We've just set up an Apple Time Capsule for our network, and while things run fine in wired mode, with wireless mode ping time fluctuates wildly from 0.5 to 400ms: Ping from a Macbook Pro to ...
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3answers
363 views

Windows Server no longer responds to ping

I've inherited a Windows Server that is used as the backup server for some of our internal machines. One day, seemingly at random, it stopped responding to ping and no longer accepts RDC requests. I ...
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1answer
62 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?
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2answers
876 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 ...
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2answers
7k 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. :) ...
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2answers
5k views

Why doesn't my server respond to ping?

I wonder why my server(s) don't respond to ping? Check this one: klusteranalytics.com $ ping klusteranalytics.com PING klusteranalytics.com (50.17.214.205): 56 data bytes Request timeout for ...
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2answers
1k views

Public hosts for ping

For my firewall scripts to determine whether my ISP is up I need a few reliable, geographically distributed addresses to ping. I could just use some major sites like Google, Akamai, etc. But that ...
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1answer
935 views

Why does ping flooding a domain name freezes and not a direct ip address

I am wondering why, when ping flooding a domain, the ping flood freezes after a couple of seconds then continues and this freeze, unfreeze continues until i stop the ping flood. When i do the same ...
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2answers
396 views

Negative growing ping on win machines

I'm having a WAN with several machines connected from a different country. All machines run win xp and while testing network it appeared that ping shows negative/positive and is constantly growing. ...
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2answers
263 views

How many failed pings are acceptable in a minute for a wireless network?

Quick question for you wireless gurus. If you ping a machine over a wireless network every .2 seconds, how many failed pings would be acceptable and "reliable" within a minute? This is an XP machine ...
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3answers
2k views

Is it possible for me to 'see' an incoming ping?

If I ping one of my servers from another server, is there any log or anything, a way to 'see' the ping from the other server on the target machine and identify it's source IP or something?
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2answers
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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 ...
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2answers
1k views

Wireless Access Point - Can't ping other machines on the wireless network

I have a wireless access point (Netgear), and I have it setup so that it has an IP address in the current subnet (let's say 192.168.2.0, subnet mask of 255.255.255.0). The machine that it is ...
0
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1answer
180 views

can't ping NT Server running on 2003 server

I have a Windows NT Server running on Virtual Machine on Windows Server 2003. Until this morning, all worked fine - I could connect to the virtual server through my program and all was well. This ...
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3answers
173 views

Network issues - Windows Server 2003

I am having network issues on my Windows Server 2003. I am running this test: I am pinging my server from remote location constantly (ping -t) I am pinging a stable web site from my server ...
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0answers
2k views

Ping fail between two servers on same subnet when other devices on subnet can ping the servers just fine

I have two Dell servers running Server 2008 R2 Datacenter Service Pack 1 with Hyper-V. For some reason, these two servers cannot ping each other (nor can the VM's on each respective server ping VM's ...
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2answers
4k views

Nagios check_host_alive and check_ping not showing host as down

I am using the check_host_alive command to send 5 packets every minute to all my routers at remote locations. I noticed today I received a notification from The AT&T Global Client Support Center ...
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2answers
2k views

Can anyone recommend utilities to measure response time of a Windows Terminal Server?

Users are currently experiencing performance problems when using RDP to connect to Windows Terminal Servers. Even users connected to the data centre directly on fibre link are experiencing problems, ...
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3answers
1k views

Cant ping ip on LAN. Port forward works fine though

I have a Solaris 11 machine running inside the LAN. It is a default install. I can access the machine and ping it if I ssh into my router (if it matters, it is running dd-wrt). I cannot ping the ...
0
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1answer
152 views

Windows Server 2008 ignores any change made to firewall

I have been trying for the last 2 hours to make my Windows Server 2008 answer ping. I have tried almost every single solution I have found on the web, so far nothing work. My current setup: 2 NIC ...
3
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3answers
6k views

Change how Nagios determines if server is offline?

I'm new to nagios and my server is on a network which does not allow the server to be pinged. Is it possible for me to check if the server is up another way? e.g via SSH or HTTP? How would I do this ...
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4answers
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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
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1answer
1k views

Sonicwall NSA 240, Configured for LAN and DMZ, X0 and X2 on same switch - ping issues

Our Sonicwall vendor supplied and networked the NSA240 when we required a DMZ in our infrastructure. This was configured and appeared correct although VPN users periodically dropped DNS and Terminal ...
0
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1answer
278 views

OpenVZ veth interface error

I'm trying to setup my openvz containers to use a veth interface. I have veth1.0 on the host node and I see eth0 in the vz. but when I do: ip -6 route add 2001:249a:aaa1:0000:0000:0000:0001:0001/112 ...
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4answers
5k views

Is it possible to ping through a NAT?

It it possible for a PC behind a NAT ping to a device that is on the outside of the NAT and get a successful response? (assuming the firewall permits it) This is a Cisco RV 120W router
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1answer
4k views

unable to ping hostname, but \\hostname\c$ works?

I'm having a strange issue on my initial lab setup. Situation: Host with OS Server 2008 R2 64bit, on this host a Virtual Machine in Hyper-V with OS Server 2008 SP1 32bit. The virtual machine has a ...
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3answers
452 views

Junior admin - how to discover/map the network to increase understanding?

I am a junior admin and have been tasked with gaining an understanding of the network. I know and use some of the servers on the network, so am able to tracert/ping them to see the names/addresses of ...
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2answers
321 views

DNS lookup working but nothing pinging

I have three forward lookup zones in my DNS server. When I try pinging a server that's part of lookup zone A from a computer that's part of that same zone, I get a response. If I try pinging a ...
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2answers
8k views

How much packet loss is normal?

I started monitoring our network using SmokePing. Users occasionally complain about bad network connections, but the problems went away after some minutes usually. I now wanted to get some more ...
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1answer
469 views

ping/ssh networking problem with server from 1 particular windows xp laptop

I am experiencing an odd problem with one specific server at my data centre connecting from my laptop. Basically the server is accessible from other machines in my house, but not from 1 particular ...
0
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1answer
336 views

Exclude pings from apache error logs (ran from PHP exec)

Now, for a number of reasons I need to ping several hosts on a regular basis for a dashboard display. I use this PHP function to do it: function PingHost($strIpAddr) { ...
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2answers
434 views

Can't Ping - Wireless network of home [closed]

This may seem like other ping problem, but I have tried a lot before posting it here. I have a linksys WRT54G - firmware v8.00.8. I have two laptops one windows vista (192.168.1.99) and Windows Xp ...
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3answers
8k views

Can't ping static IP from internal network, only from outside

I'm running ubuntu and I have apache running, however, I can't ping internally to my static IP nor browse http://207.40.XXX.XX the web server using my static IP. I can only ping/browse localhost, ...
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2answers
1k views

Hanging of host network connections when starting KVM guest on bridge

I've a KVM system upon which I'm running a network bridge directly between all VM's and a bond0 (eth0, eth1) on the host OS. As such, all machines are presented on the same subnet, available outside ...
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2answers
12k 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, ...