Ping response

Please be gentle with me thiss is my first post and I'm not really sure if I'm in the right place - if I'm not let me know and I'll repost!!
I have an iMac with a time capsule that I am using for back-up extra storage and wireless internet, I think I have the wireless bit sorted with the security protocols etc but..... when I use GRC (www.grc.com) to check my security it reports that everything is ok but.......I am responding to pings!! only when connected wirelessly!! that indicates it is the time capsule configuration that is causing my problem!! can anyone tell me how to stop my time capsule responding to pings??
Thank you

Hi Andrew, thanks for the reply, I thought a ping response located your computer on the internet!! therefore allowing others to gain access to it!! (not a network specialist so this is all new to me!!) I have been into the firewall settings, guess I'll go back and have another look at them!! this perceived problem only occurs when I am connected through the airport, using the cable directly it doesn't happen!! I have had a look at my modem settings but there are no user definable parameters so I cant stop the modem responding this leads me to think its the airport causing my 'problem'
Mick

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HH3::Enable ping response on WAN interface- there ...

HH3::Enable ping response on WAN interface- there must be an easier way!!
only way I've managed to get this working is to connect an old Buffalo Airstation via Ethernet, enable Ping response on its WAN interface and then assign the Buffalos WAN IP to the DMZ in the HH3
DISCLAIMER: although I work in the industry I do not work for BT and any opinions given are purely my own.

Apple's website is acting up.
Open AirPort Utility on your Mac
Click on the Time Capsule icon, then click Edit
Click the Base Station tab at the top of the window
Enter a check mark in the box next to Allow Setup over WAN
Click Update
If you do not see this option, the Time Capsule is not acting as the router for the network....another device is performing routing duties.

Remote connection established - delayed ping responses - why??

When we have established a remote session with Cisco RAS it takes a long time - 30 secs to a minute - until we start to receive ping responses from a server on the network. Any ideas?

There is nothing wrong with the configuration because connection is established. With Ping command the normal response occurs in 1 to 10 seconds, depending on network traffic. But in you case it is taking more than 30m sec. this may occur due to big length cable use or traffic. To determine if ping is getting delay looked at the CPU.

Meaning of Ping Response?

Dear All,
I am getting different kind of ping responses..May i know the meaning of the same.
1. QQQ
2.MMM
3.........
4.????
5.&&&&
6.UUUU
7.restrict in hardware
Otherthan that is there any ping response.
Advance in thanks
Tks&Rgds
Senthil

Hi,
Below are the symbols you can interpret for ping output
Each exclamation point indicates receipt of a reply.
Each period indicates the network server timed out while waiting for a reply.
U
A destination unreachable error PDU was received.
Q
Source quench (destination too busy).
M
Could not fragment.
Unknown packet type.
Packet lifetime exceeded.
Regards
Hitesh Vinzoda
Please rate helpful posts

No Ping Response

I have a 4402 WLC. There are 2 WLAN's configured. 1 is a guest wireless lan, the other a private wireless.
The guest wireless lan is wide open SSID is broadcasted. No client authentication is required. DHCP is used.
When I try to ping from within the guest WLAN from one wireless client to another wireless client within the same ip subnet, i get no response.
Also,
I am trying to set-up a wireless print-server in this WLAN. I power on the print server, print a test page, acquire a DHCP ip address for the guest WLAN, but can not ping the ip address from a wireles laptop from the same guest WLAN.
HELP!!!!!!!!

I just setup a very similar configuration. I am having a weird ping problem of my own right now, but I may be able to help you.
1) Can you ping a wireless host with the controller?
2) Can you ping the controller with a host?
3) For your guest VLAN you had to setup a gateway address for that network. Did you create it? (should be on a router somewhere). If so can you ping that?
4) Is this problem isolated to your guest WLAN only? Does your private WLAN work correctly?

No ping response from PC to iMac

After many problems and fixes to iMac G5 and Windows XP PC
connected via a router, this one specific problem is immutable:
Do a ping from the iMac to the PC -- no response. Ping from
PC to iMac or iMac to router or PC to router -- good response. Just in case it means anything, the PC firewall is disabled.
Both computers can connect to the Internet (via router to Cable modem), but until I did a disk cleanup (via VCOM SystemSuite) the PC would disconnect after about 2 minutes (but only if the iMac was up and running w/router).
Any idea why the PC will not respond to the iMac ping?

The problem was not a cable after all. I have two firewalls
installed in the Windows XP computer: Windows and SystemSuite. At least one of them remains active when disabled; I think it is SystemSuite. Rebooting the PC after disabling the firewalls allows the ping. That has been pretty consistent.
When I enable the Windows firewall with the box "Don't allow
exceptions" unchecked, leave the SystemSuite firewall disabled, on start up the ping is ok. That allowed Samba to work and I can transfer files.
Moral of the story: If I load up the system with enough junk something will not work.
Thanks again.

Firmware bug - modem CG3100D-2 causes 4sec ping response

Ok this will be a long post, sorry. I believe there is a bug in the firmware of the default ultimate cable CG3100D-2 modem. Many DLNA enabled services are unuseable as a result. The issue causes high latency and packet loss and makes streaming video and gaming a frustrating experience. I would hazzard a guess Telstra have sent out hundreds of modems attempting to resolve packet loss and latency issues not being aware of what the problem is. I am not game to try telephone support as they will just want to send me another modem The issue occurs with plex media server and XBMC DLNA players which are quite popular and most likely many others. (https://plex.tv/ and http://xbmc.org/) With the DLNA software merely running in the background and doing nothing else high latency and ping loss will occur every 25 pings or so to the modem itself. The below will use Plex media server as an example with XBMC not running. My network topology is this:Router with PS3, TV and additional switch connected.The switch plugged into the router has 2 PC's and a media server attached. While plex is running and performing a basic ping test.
Ping switch-plexserver = no high latency
Ping switch-pc = no high latency
Ping router-internalinterface = high latency
Ping router-externalinterface = high latency
Ping router-PS3 = no high latency
The frequency of these debilitating spikes which makes online gaming impossible. Initial spike occurs, again 40 seconds later, again 44 seconds later, again 53 seconds later.
As above the issue is sporadic but consistent. As in it continually occurs while plex is on but the timings between spikes is not similiar i would say they that a spike occurs between 10-90 seconds consistently typically every 45 seconds.
Lag spikes range from 200ms to 4000ms locally!.
- When the issue occurs network throughput is not affected
- Internet speed test 112mbit down, but high jitter and latency noted
- Throughput on lan consistent- When the spike occurs the network is idling with throughput stable at 45kbit/sec on the server, disk throughput is stable at 32kbit I have a Microsoft netmon capture of the media server when the issue occurs. I can see a few more SSDP requests but not much else is happening. Spikes occured at the following times give or take a second in the capture. (I'm not sure it it auto adjusts for time so it was captured at GMT+10)
2:07:54
2:08:48
2:09:42 Need somewhere to upload the capture file. I can confirm that disabling UPNP on the router resolves the issue, it is a bug with UPNP in the modem. But as Telstra force custom firmware i can't update it with new firmware and as far as i'm aware we can't use third party modems. So Telstra please forward this to your technical team as it's not within my control to fix. FYI: This has occured on 2 different ultimate modems, the intermediate switch has been replaced and also removed from the link to rule that out, the cabling replaced, different power socket tried (reaching before understanding the scope of the issue), the media server installed on multiple different machines to rule out a PC issue. Also occurs on multiple OS's including win7 64bit, server 2008, win8.1 64bit.

Hi all,
I ended up putting the router in bridged mode (NAT off, plus Disable WiFI, and cease SSUD broadcast). The Netgear works well if you configure it to only do one simple task. Bridge fibre cable to a Ethernet (CAT6 + only) which you plug into the WAN port of another WiFi router.
After extensive reviews I purchased a Linksys instead of upgrading the Netgear.
I bought the Linksys Dual-band Wireless-AC1900 Gigabit Router. It can be found at: http://www.asus.com/Networking/RTAC68U/
To conclude it is brilliant. It even has backup WAN like 4g USB if the Cable deteriorates, or an extra numbered LAN port which in theory could be an ADSL service or the cable accounts second public IP configured as either "Load Balancing" or "Fault Tolerance (including failback)". Lots of configuration to suit the diverse needs of us all.
I'll compliment this with a newer Synology DS415Play in the future and the house shall be complete.
DLNA WiFi devices are now finding my NAS UpNP services. Plus with the 5Ghz frequency, my TV is steaming at 380Mgbt/s. Awesome gear.
It is now on special at Centrecom for $222.00.
Best regards,
Ross.
Router MainPage Summary:
The world's fastest Wi-Fi router, with combined dual-band data rates of 1900 Mbps for three times faster performance than 802.11n routers
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ASUS AiCloud cloud service to access, sync, share, and stream your data wherever you are, even connect to other compatible routers creating a private cloud server with family and friends
....

Why this "ping" response?

I am trying to ping an address from a 3560G switch but I am getting a strange response below. Is this imagine not capable of pinging? Strange that it is "IPservices"...
"flash:c3560-ipservices-mz.122-35.SE5/c3560-ipservices-mz.122-35.SE5.bin"
gw1#ping ip ?
WORD Ping destination address or hostname
<cr>
gw1#ping ip 192.168.10.33
% Unrecognized host or address, or protocol not running.
gw1#ping ip ?
WORD Ping destination address or hostname
<cr>
gw1#ping ip 192.168.10.65
% Unrecognized host or address, or protocol not running.

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Please use below command for configuring DNS.
Ip domain lookup
ip name server
ip domain name
ip OSPF name-lookup
I have also had a same problem when I setting up new Router.
and see below link
http://www.cisco.com/en/US/tech/tk648/tk362/technologies_tech_note09186a00800c525f.shtml
Regards
Amit Sharma
Message was edited by: Amit Sharma

No Ping Response - Intermittent Admin Discovery

I finally got this working (and I'm not alien to setting up routers, switches, bridges et al)...
Last night it was working fine... the set up was a pig.
Moved it this morning into the living room, and now it appears to have flaked out on me... I put it back upstairs, to see if it was signal... I can stream iteunes to it from my macbnook, but not my PC... It won't respond to ping... It appears on admin utility, then vanishes... this truly is a flakey product...
Are there wireless channels to avoid?
Anyone having trouble with these?
Steve

I forget to ask... has anyone got this working as a client only (no WDS) connecting to an existing wireless network using WPA-PSK security?

Link OK, but no ping response

Hi!
I am not sure if I should ask a question about D-link switches here... Anyway I have an unmanaged DES-3250TG D-link switch. From the last few weeks I have come across a particular problem with machines connected to that switch. The link is shown OK on the switch as well as on the machine, but when you try to ping the gateway or any other machine in the same subnet range, it doesnt happen.
Thanking in anticipation...

Hello,
it could be that the port is assigned to another VLAN than the default gateway or the other hosts.
Make sure all of them are in the same VLAN.
Make sure, the IP address and network mask in your machines are set consistently.
You can also check on your PC with "arp -a" whether there are arp entries for the default gateway.
Be aware that a personal firewall could also prevent you from successfully pinging other IPs.
Hope this helps! Please rate all posts.
Regards, Martin

How to disable inter-VLAN ping response from L3 switch

Correction - This was originally posted for my SG300, but it's actually one of my SGE/2010
I am experiencing an odd behavior from my SG300. When pinging an IP that is in another VLAN (which requires L3 routing), my switch responds if an IP does not exist on the network. For example, let's say I am on subnet A (192.168.0.0) and I want to ping an IP on subnet B (192.168.1.0). If the IP does not exist on subnet B, the SG300 will respond that 'Destination host unreachable'.
You may ask, so what's the big deal? And for the most part I agree, however, there are some circumstances where certain searches on the network falsely identify this as a device residing at that IP. One example is Spiceworks and another is Symantec Endpoint Protection Manager. In both instances, the software is looking for devices to add to inventory and when it receives this 'Destination host unreachable' message from the SG300, it believes something is on that IP.
This problem does not occur if the search is on the same subnet, but only appears when it crosses over to another subnet and routing is involved.
My question is, how do I tell the SG300 to NOT respond with "Destination host unreachable" when an IP does not exist in another VLAN on the switch?
Thanks in advance!

The PC10 in vlan 10 can not ping the gateway (10.64.16.1) of vlan 20. It can only ping its own gateway 10.64.8.1
Both hosts are running Windows 7 professional with firewall turned off.
The same for the PC20 in vlan 20. It can only ping its own gateway (10.64.16.1) but not vlan10's gateway (10.64.8.1)
In fact, just for testing purposes.
I temporarily assign g0/1/2 (which was on vlan20) to vlan10 now. Changed the host (PC20) IP to 10.64.8.3.
After this change, the 2 hosts can ping each other (in the same vlan 10)....that's expected. So, the OSes and firewalls issues on the hosts are not the issue. They can ping each other when they are in the same vlan.
However, now that they are in the same vlan, they still can't ping out to G0/0 192.168.0.162.
So, the problem is how to ping from the layer 2 EHWIC to the built-in G0/0 and G0/1 router ports?

CSS redundant-interface ping response

Hi,
I just wan't to make a simple question:
Should the css11151 respond to ping requests made to a redundant-interface?
If yes, what can be the reason for the redundant interface, not being responding to ping requests?
Thanks in advance,
Regards,
LR

Hi,
Did you ever find solution to the issue.
I have 11503 and I have same problem, I cannot ping the redundant-interface address from the directly connected switch.
It works for first few seconds when the CSS reboots or interface bounces then stops.
Any ideas?
Thanks

Home hub 5 slow ping response times on wireless

Ive recently had Infinity installed after being with plusnet for 2 years and having infinity before that. I was having some slow ups on wireless, nothing very drastic but enough for me to know something wasnt quite right.
When I run a constant ping to the home hub or any other device on the network from a device thats on the wireless I get about 10 good pings (around 2 or 3 ms) and then 4 bad pings ranging from 180ms - 500ms. Also get the odd ping that does not respond. For basic neowsing you would probably not notice but for an advanced user its frustrating. BT are sending a new Hub out but I'm wondering if this is a fault on all hub 5's. Has anyone lese noticed this? Can anyone else give it a go and set a constant ping off to the hun over wireless please and report back?
For info I have tried all the different settings, channels, ghz etc.
Thanks

esmewk wrote:
Are you sure your wireless card is connecting on 5GHz? I had to manually set mine to connect to 5GHz or else it'd try and connect on 2.4GHz.
Yes it's definately connecting at 5ghz i'm even forcing it with the device,i'm getting a link speed of 433 mbp/s so it's defo 5ghz i'm noticing strange bursts of speed when using the speedtest app ie downloads fast for a split second then stops and so on and so on,same with upload it's dropped from 18-19 mb/s to 9-10 mb/s and strange bursts of start stop,i've rebooted the hub a few times now,i'm still using the open reach modem as opposed to the inbuilt one of the HH5 for cabling reasons.

Airport Extreme Slow Ping (Internet) Response

I am having problems with my dual-band airport extreme. When connecting to the external internet, I'm seeing high ping responses (>500ms) after about 5-10 minutes of resetting (hard reset) the Extreme and initially seeing 15-30ms response times.
I've tried:
1. Moving the router physcially in the house (no improvement)
2. Trying different channels on both 2.5 and 5 (some, but inconsistent improvement)
3. Multiple hard resets and reconfiguring the Extreme
4. Reinstall the firmware (haven't tried going down in firmware)
5. There are no cordless phones in the house
6. Absolute speed to the internet is strong (above my provider's stated speed)
7. If I connect my Macbook pro directly to the cable router, everything (ping + speed) is great.
8. Seeing slow ping responses both on my MacBook Pro and a separate PC
Any suggestions on how to troubleshoot? Seems like it a problem with the wireless connection and/or interference.
thanks!
Dale

had a 5th gen Extreme that I bought with 7.5 and immediately upgraded to 7.6. Saw the exact issue you described. exchanged it for a 6th gen Extreme, and am experiencing the same behavior again... both with 7.5.2 and 7.6 firmware.
everything is hunky dory when plugged directly into my cable modem.
third time's a charm, hopefully.

SG200-26P [FW-1.1.2.0] - Very High Response Time: 1000ms!

Hello,
Problem: New SG-200 26P Smart Switch with Latest Firmware - Very High Responce Time 500-800ms
We've a EdgeMarc 4500 Router with 10 VPN tunnels to 10 brach locations. SG-200 26P Smart Switch is connected to 7 Servers (2 Terminal, SQL, and Other) All locations have 50MB Download and 20MB Upload speed from Verizon FiOS Internet service.
As per the SolarWind tool, the response time of this switch is around at 500ms. At the same time, the EdgeMarc 4500 router response time is around 40ms and less.
We've 60 desktops remotely connected to our SQL Server database and 40 RDP Users via Remote Desktop. The configuration is same from past 3 years. But we change the switch from HP 1800-24G to Cisco due to some Connection Failures. For Connection Failures, we first suspect the old HP switch, but it's look like issue with EdgeMarc Router.
Is this Response Time is normal? I attached two screenshots of both Cisco Switch and EdgeMarc Router Response Time from past 24 hours according to SolarWind tool. Any further advice would be greatly appreciated. Thank you.

Hello Srinath,
Thank you for participating in the Small Business support community. My name is Nico Muselle from Cisco Sofia SBSC.
The response time from the switch could be considered as quite normal. Reason for this is that the switch gives CPU priority to it's actual duties which would of course be switching, access lists, VLANs, QoS, multicast and DHCP snooping etc etc. As a result of that, ping response times of the switch itself do not show in any way the correct working of the switch.
I invite you to try pinging clients connected to the switch, you should be able to notice that response times to the clients are a lot lower than response times of the switch itself.
Hope this answers your question !
Best regards,
Nico Muselle
Sr. Network Engineer - CCNA - CCNA Security

Ping response

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