Re: [WISPA] no net but ping works

Message - From: "Josh Luthman" To: "WISPA General List" Sent: Thursday, August 26, 2010 2:06 PM Subject: Re: [WISPA] no net but ping works My point being with ARP you can't ping. Regardless if the ARP happens right after you issue the ping command or it learned the MA

Re: [WISPA] no net but ping works

unable to connect, log into the AP and ping >> >>> the CPE and then have the customer try to load the page. If that >> >>> works the issue is probably between the AP and CPE. If not, move to >> >>> the next device up the chain each time pinging the

Re: [WISPA] no net but ping works

> >>> the CPE and then have the customer try to load the page. If that > >>> works the issue is probably between the AP and CPE. If not, move to > >>> the next device up the chain each time pinging the CPE until the > >>> customer can connect. > &g

Re: [WISPA] no net but ping works

e is probably between the AP and CPE. If not, move to >>> the next device up the chain each time pinging the CPE until the >>> customer can connect. >>> >>> As a temporary measure you could add a static ARP entry in the >>> router but that's a bandaid and may ma

Re: [WISPA] no net but ping works

Yup, that was the issue. Once we went full WDS the bridged backhaul switches were seeing to many MACs and would freak out. Replaced with nice netgear (metal box, not plastic) switches and all is better. On Thu, Aug 26, 2010 at 10:26 AM, Jerry Richardson wrote: > Good point. > > We had some simila

Re: [WISPA] no net but ping works

>> -----Original Message- >> From: wireless-boun...@wispa.org [mailto:wireless- >> boun...@wispa.org] On Behalf Of Mark Dueck >> Sent: Thursday, August 26, 2010 8:15 AM >> To: wireless@wispa.org >> Subject: Re: [WISPA] no net but ping works >> >> I

Re: [WISPA] no net but ping works

That sounds like a arp issue at the AP or the gateway. What is the gateway device? On Thu, Aug 26, 2010 at 9:38 AM, Mark Dueck wrote: > I went to a client again, and did some nslookups.  here's what I found: > > All radios are setup as dns relay.  When I got to the client, he had no > internet.

Re: [WISPA] no net but ping works

Good point. We had some similar stuff going on when we tried to use bullets to replace a trango. Any ubiquity or other .11 gear should be running WDS to ensure transparent MAC passthrough. Jerry Richardson Sent Mobile On Aug 26, 2010, at 10:24 AM, "Jeromie Reeves" wrote: > Or just has a

Re: [WISPA] no net but ping works

I just tcpdump'd a DNS request for google.com. The request (the one that would be affected by RTS/CTS) was 32 bytes. The reply was 220 bytes. So I maintain that you'd have to have the RTS/CTS threshold less than 32 + IP header size. If a wireless network is having contention problems with 50 by

Re: [WISPA] no net but ping works

Or just has a small ARP table. When I first started using Ubnt I had issues with cheap switches and end user routers due to the CDP they use. Once implementing the network design that we had on paper, things snapped right up. On Thu, Aug 26, 2010 at 10:15 AM, Jerry Richardson wrote: > Start reboo

Re: [WISPA] no net but ping works

Start rebooting. Start with the AP and work your way toward the router. All o the bridge tables will rebuild. If it continues after that then I would suggest a device that going bad. Jerry Richardson Sent Mobile On Aug 26, 2010, at 10:12 AM, "Mark Dueck" wrote: > Customer can get to CPE all

Re: [WISPA] no net but ping works

Customer can get to CPE all the time. This customer had the CPE plugged into switch, then from switch to laptop. I was able to ping AP all the time, and I'm running nagios for monitoring, and I never see any issues. Network seeps to be quite stable, and whenever I ping any clients, even if I pin

Re: [WISPA] no net but ping works

You have to set it to >512 for DNS. Remember that DNS is UDP so if the packets go away because the wireless medium you are using is lossy then there are no more re-transmits. Setting the RTS/CTS to just at the size of a UDP DNS packet creates a virtual TCP-like network for those sized packets. ry

Re: [WISPA] no net but ping works

- > From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On > Behalf Of Mark Dueck > Sent: Thursday, August 26, 2010 9:39 AM > To: wireless@wispa.org > Subject: Re: [WISPA] no net but ping works > > I went to a client again, and did some nslookups.  here's w

Re: [WISPA] no net but ping works

I have about 25 clients on this AP. I think only 2 of them are NS2's, the rest are SL2's and they are all updated to 5.0.4 firmware, which has the fix for the limited connections that the 4.x firmware had. All the Tranzeo's have their RTS at 3000, their default. I checked the NS2's, but I can't

Re: [WISPA] no net but ping works

What is the PC's gateway? Can the customer get to the CPE all the time? Can they get to the AP? Is it just customers behind this AP with the issue? Need to isolate where and what the issue is. Seems to be entirely Ethernet on some CPEs. Josh Luthman Office: 937-552-2340 Direct: 937-552-2343 1

Re: [WISPA] no net but ping works

ARP - Jerry -Original Message- From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On Behalf Of Mark Dueck Sent: Thursday, August 26, 2010 9:39 AM To: wireless@wispa.org Subject: Re: [WISPA] no net but ping works I went to a client again, and did some nslookups

Re: [WISPA] no net but ping works

An RTS/CTS setting of 3000 means it's effectively disabled. You'd have to set it below 1500 for it to do anything. It's not looking like that's your problem anyway. RTS/CTS will help performance when customers upload large frames (specifically ones larger than your RTS/CTS setting). You'd have

Re: [WISPA] no net but ping works

and may mask a more serious problem. > > > - Jerry > > > -Original Message- > From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On > Behalf Of Mark Dueck > Sent: Thursday, August 26, 2010 8:15 AM > To: wireless@wispa.org > Subject: Re: [WISPA] no

Re: [WISPA] no net but ping works

I went to a client again, and did some nslookups. here's what I found: All radios are setup as dns relay. When I got to the client, he had no internet. I first did a nslookup to google.com, and the radio responded with unknown. I changed radio to dns relay off and added 8.8.8.8 as a secondary

Re: [WISPA] no net but ping works

daid and may mask a more serious problem. - Jerry -Original Message- From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On Behalf Of Mark Dueck Sent: Thursday, August 26, 2010 8:15 AM To: wireless@wispa.org Subject: Re: [WISPA] no net but ping works I have about 25 cli

Re: [WISPA] no net but ping works

Well, research RTS settings here: With that link, think about DNS issues.. (I am really thinking that this is your issue) and then read that page mentioned below with particular attention to ever

Re: [WISPA] no net but ping works

I found the RTS settings in the NS2's ..I have never messed with the RTS settings. Should I change the NS2s to the 3000 that the SL2's have?? On 08/26/2010 07:56 AM, Ryan Spott wrote: > Hey Mark, > > How many CPE are attached to your AP? > > Have you adjusted RTS/CTS Settings? Take a look he

Re: [WISPA] no net but ping works

Under the advanced tab? ryan On Thu, Aug 26, 2010 at 8:15 AM, Mark Dueck wrote: > I have about 25 clients on this AP.  I think only 2 of them are NS2's, > the rest are SL2's and they are all updated to 5.0.4 firmware, which has > the fix for the limited connections that the 4.x firmware had. > >

Re: [WISPA] no net but ping works

Thanks so much! Though I'm not a WISPA member (nor do I run a WISP or make a profit from the network I run here in the jungle of Venezuela), since there's so much discussion on the forum about this topic and there's WISPA members who still have bridged networks which they want to some day route

Re: [WISPA] no net but ping works

Hey Mark, How many CPE are attached to your AP? Have you adjusted RTS/CTS Settings? Take a look here: http://www.tranzeofaq.com/RTS-CTS.html ryan On Wed, Aug 25, 2010 at 9:09 PM, Mark Dueck wrote: > I don't think it's a DNS because most clients that are complaining are from > one AP.  Today I

Re: [WISPA] no net but ping works

Hi Greg, I think I understand what you are asking for... since this type of stuff tends to me more of an exercise heavily influenced by personal preference or judgment...Having said that, let me share with you some starting config... I am sure other can chime in with more suggestions. ---

Re: [WISPA] no net but ping works

From the FWIW dept. :) You can turn off CDP on all UBNT gear, buy un-checking 'Enable Extra Reporting" on the Advanced Page. Faisal Imtiaz Snappy Internet & Telecom On 8/26/2010 8:20 AM, Phil Curnutt wrote: > Had a similar problem when testing UBNT's. Seems they broadcast CDP's > that f

Re: [WISPA] no net but ping works

Does anyone have an example or wiki on how to set up a simple (just a few APs, two backhauls) routed network? I've googled and I've not found anything. Greg On Aug 25, 2010, at 11:54 PM, Jeromie Reeves wrote: > Have a client with the problem do a nslookup before a ping. It sounds > much like a

Re: [WISPA] no net but ping works

Had a similar problem when testing UBNT's. Seems they broadcast CDP's that fill up Linksys router arp caches. Rebooting the routers made problem go away, but only temp. Took the UBNT stuff off the network and all was well. Also Brother printers can cause the same issue. Try blocking interclient

Re: [WISPA] no net but ping works

I agree... sounds like an arp issue. You don't happen to have two client bridges before this ap do you? If so you probably have customers battling each other in the arpnat tables. For instance one client starts pinging, other client stops working. Other client starts pinging, first stops working. D

Re: [WISPA] no net but ping works

What firmware version on the SL2's ? There was an issue until the latest with number of connections or something, either in routed or bridged or both. -- Original Message -- From: Mark Dueck Reply-To: WISPA General List Date: Wed, 25 Aug 2010 22:09:15 -0

Re: [WISPA] no net but ping works

Have a client with the problem do a nslookup before a ping. It sounds much like a dns or a arp issue as mentioned. Can you route each Powerstation ? I like to bridge the AP (with dedicated ports behind them) and WDS the clients (with their radios running internal routed 10.x subnets , no nat!). Thi

Re: [WISPA] no net but ping works

I don't think it's a DNS because most clients that are complaining are from one AP.  Today I got one that's from a diff AP that said their net was intermittent. I myself am browsing on the same network and never experience that problem.  I have the same settings. Mostly Tranzeo SL2's as clien

Re: [WISPA] no net but ping works

Of Jerry Richardson Sent: Wednesday, August 25, 2010 5:39 PM To: WISPA General List Subject: Re: [WISPA] no net but ping works I have also had switches an Jerry Richardson Sent Mobile On Aug 25, 2010, at 5:00 PM, "Jerry Richardson" wrote: > Arp issues. Try flushing your rout

Re: [WISPA] no net but ping works

I have also had switches an Jerry Richardson Sent Mobile On Aug 25, 2010, at 5:00 PM, "Jerry Richardson" wrote: > Arp issues. Try flushing your routers arp cashe. > > Jerry Richardson > Sent Mobile > > On Aug 25, 2010, at 4:43 PM, "Mark Dueck" wrote: > >> Hi, >> >> I've got some issues on my n

Re: [WISPA] no net but ping works

Arp issues. Try flushing your routers arp cashe. Jerry Richardson Sent Mobile On Aug 25, 2010, at 4:43 PM, "Mark Dueck" wrote: > Hi, > > I've got some issues on my network with clients complaining they > have no > internet. When I come around, as soon as I ping gateway and then > google >

Re: [WISPA] no net but ping works

What kind of radios? You sure it isn't a problem with the DNS servers? On Aug 25, 2010 7:44 PM, "Mark Dueck" wrote: Hi, I've got some issues on my network with clients complaining they have no internet. When I come around, as soon as I ping gateway and then google dns, the browsing is back up

[WISPA] no net but ping works

Hi, I've got some issues on my network with clients complaining they have no internet. When I come around, as soon as I ping gateway and then google dns, the browsing is back up. I showed a client how to do this, and he says whenever his internet goes down, as soon as he pings it's right back up