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#2413 - 08/21/13 11:35 PM Router setup and ping plotter?
overdrive148 Offline


Registered: 08/21/13
Posts: 4
So I set up a different router in my house from a cheapo walmart router to my WNDR3300 netgear dual band router. Pingplotter worked on the other one, but I get a peculiar effect on the new one. Attached. I'm guessing its some setting in the new router? Thanks in advance.


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#2414 - 08/22/13 11:20 AM Re: Router setup and ping plotter? [Re: overdrive148]
Pete Ness Offline



Registered: 08/30/99
Posts: 1106
Loc: Boise, Idaho
Hi.

No attachment made it on here, so I can't comment *specifically* on your issue, but I'll make a wild guess. smile

We have a Netgear router here that has issues with the first hop - showing a lot of packet loss when more than one target is being traced to. The second hop is fine, though - which means it's just the way the router responds to ICMP TTL=0 packets. We talk about that issue here:

http://www.nessoft.com/kb/24

If that doesn't hit your issue, then please post a picture (either here or via our support email and we can post the picture back here).

- Pete

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#2415 - 08/22/13 06:59 PM Re: Router setup and ping plotter? [Re: Pete Ness]
overdrive148 Offline


Registered: 08/21/13
Posts: 4
How strange. Let me try again. I'll explain it at the same time too.

It shows giant blocks of packet loss that are evenly spaced every minute or so, with a second or two of ping graph in-between.


Attachments
pingplotter.png (289 downloads)


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#2416 - 08/23/13 11:19 AM Re: Router setup and ping plotter? [Re: overdrive148]
Pete Ness Offline



Registered: 08/30/99
Posts: 1106
Loc: Boise, Idaho
Well that's not pretty.

I'm assuming that the internet itself isn't doing that, right? Just PingPlotter? We've seen this pattern before - but it was the router actually rebooting itself (which obviously stops the internet from working during the reboot process).

There are a couple of things you can check:

* Are you running the latest bios for your router?
* Can you use the TCP packet type instead of ICMP?
* Does setting the trace interval at 15 seconds solve it? If so, how low can you get that number?

It looks like maybe there's a limit to how many packets the router allows in a specific time period (1 minute, based on your graph) - or maybe there *might* be some rule in the router that's kicking in and blocking traffic for a minute. Dig around and see if you can find anything related to ICMP.

- Pete


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#2417 - 08/23/13 07:49 PM Re: Router setup and ping plotter? [Re: Pete Ness]
overdrive148 Offline


Registered: 08/21/13
Posts: 4
Yeah, the internet works just fine, it's just pingplotter from what I can tell. The router doesn't seem to stop working at all. I'll try both here in a sec.

15 second interval:Huh, it looks like it actually pings okay.
5 second intervals: Looks fine, I don't see any packet loss.

Up to 1 second, it started again.


These are the options available in the dashboard. What do you think it'd be under? I dont see anything regarding TCP or ICMP just at a precursory look.
Setup
Basic Settings
Wireless Settings
Content Filtering
Logs
Block Sites
Block Services
Schedule
E-mail
Maintenance
Router Status
Attached Devices
Backup Settings
Set Password
Router Upgrade
Advanced
Wireless Settings
Wireless Repeating Function
Port Forwarding / Port Triggering
WAN Setup
LAN Setup
QoS Setup
Dynamic DNS
Static Routes
Remote Management
UPnP



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#2418 - 08/23/13 07:52 PM Re: Router setup and ping plotter? [Re: overdrive148]
overdrive148 Offline


Registered: 08/21/13
Posts: 4
Lan Setup:

It has LAN TCP/IP Setup under it:

LAN TCP/IP Setup
IP Address
IP Subnet Mask
RIP Direction
RIP Version

Use Router as DHCP Server
Starting IP Address
Ending IP Address

Any of these or?

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