ADSL/VDSL

812 router leds still flicker after page is received (english)

BocaDePez 16 diciembre 2003 20:03

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(Sorry, am in Spain, but Spanish is not good. Hope your English is better)

Noticed strange behaviour on 812: when http request is completed and page is rendered fully in browser, 5 secs later the ADSL-status light comes back on AND the LAN-status led I connect to (multipuesto), including the ACT-led on NIC.

Also, this 'traffic' goes unnoticed by Zonealarm Pro 4.5 (green/red meter not there, just brown/yellow ZA-logo).

I checked PC with Adaware, nothing found. Norton AV = up-to-date.

What is this? Router never used to do this? Anyone?

Win98
Zonealarm Pro 4.5
Norton AV 2001/latest defs
812 version 1.9

Peter

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undertow 16 diciembre 2003 20:24

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Hi, some ideas:
Check with netstat -a what open conn you have.
Do you have any service running and redirected with NAT to you home lan???
Do you have dinamic ip??? ( probably some p2p connections to the other gay that have your ip before you )
Your isp have a proxy cache that know is high loaded, so, probably the website tooks more time to finnish loading.
I have that router too and my lights never stop blinking more than 5 minutes ( i have some services on my network like smtp server )
You have that blinking only when you surf on internet??

If the firewall dont detect any extrange activity check your computer with an anti-trojan ( www.moosoft.com ) like the cleaner and if everything is ok forget it ;).

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BocaDePez 16 diciembre 2003 23:40

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I tried netstat -a before, but under Win98 is not much use, doesnot show process connected. Nothing special anyway to look at, no weird port numbers etc.

Run a static IP-address (telefonica ADSL), for the last 1 1/2 years or so.

Downloaded spyware-killer, nothing, nada.

There is a pattern though, I believe:

- any non-Windows app (ping, Lynx DOS-based web browser) does NOT trigger the 'traffic'
- both Opera (7.2) and IE (5.5) DO trigger the 'traffic' after http-request
-both Opera (7.2) and IE (5.5) DO NOT trigger the 'traffic' after httpS-request OF THE SAME PAGE AS ON HTTP-test

Thanx for help,
Peter

JoeDalton 16 diciembre 2003 21:45

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Hi, you can check all connections to your router.
If you access to web configuration: http://your_router_ip_address go to: monitor>networks>Nat>Port Assignments.

If there isn't any conection, can it be icmp traffic from any remote site?

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BocaDePez 16 diciembre 2003 23:43

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Thanks, tried the Monitor, nothing strange, just the mapped ports you would expect when requesting a page on http or https.

About the ICPM: if it were an ICPM, shouldn't I get the 'traffic' also when using the DOS-based web browser Lynx (tried it with identical pages, no 'traffic' after 5 secs, not with PING, nor on HTTPS).

Peter

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undertow 17 diciembre 2003 18:38 ✎

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I think that you dont have to care about that "problem".
Another idea:
Take a look with a network monitor like the one that tiny personal firewall have, do the http request with your browser and look what connections open, then hold and go to other website and take a look if on that 5 second interval connects to the same place that on the other test, if that happend could be some "google deskbar like program" sending some stats of the page you visited??

Install a new browser like mozilla and take a look if that happend.

Luke 17 diciembre 2003 17:02

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just a thought... maybe your browser is telling you the page is loaded when it's actually not 100% loaded? you said it's more or less browser-dependent, so... just an idea :p

BocaDePez 18 diciembre 2003 15:33

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Sure you have more sofware installed in your computer (like all of us...) Realplayer, windowsmedia... and lots more. I think this activity is software updating or connecting to CDDB or maybe your computer/router is trying to keep the connection alive.

Nothing about to care. Doesn't the hard-disks leds blings even if you do nothing? This is the same.