Users can not browse, too many connections.To many for what?

[kdiamond]

Hi.

I have ADSL 4mb UL /1mb DL line. My ISP claims that there's no limit on opened connections from their side and I can have as many connections opened as I like. They also said that some routers can not handle many connections and that this may be a problem. For an expample: Some cheap Dlink routers can not handle more than 600 opened connections, they said.

So, suppose it's true, what exactly am I overloading? What particular device can not handle so many connections?

PC (AMD 1Gh Duron, 512 Mb Ram, resouces are 50% used) ?
Network Adapters (3com 100mbps) ?
Wingate ?
OS: Windows XP ?

Is there a chance that Wingate can not handle so many opened connections? We're talking about 5000+ opened connections.

Does hardware routers have any advantage over software ones regarding this issue?

Thank you
Br
Dali

[genie]

Your ISP was right - due to various restrictions hardware routers (the lower segment of the market) have predefined/hardcoded connections map size - but to answer your question we need to know what version of Wingate are you using and what kind of Wingate license do you have installed.

[kdiamond]

Wingate version: Wingate 6.1.1 (Build 1077)

Wingate license: Wingate 6.x Enterprise 250+ concurent users Free 30 day trial (id:238466)

Thank you
Br,
Dali

[genie]

Right. So Wingate should not interfere then - what kind of router are you using?

[kdiamond]

no hardware router.

Wingate is the router.

ADSL -> Wingate PC -> hub (20 users)

Br,
Dali

[genie]

What kind of ADSL hardware?

[kdiamond]

I don't know exactly. Some sort of ADSL modem installed by ISP team.

ISKRATEL Callisto821

Iskratel is a Slovenian/Europe telecomunication devices company.

Br,
Dali

[genie]

Right. First thing I noticed in the manual for this router is that by default its NAT port range is quite narrow - 1024 ports - bearing in mind that the default timeouts for various connections are quite long, 1024 ports will be consumed in your case quite rapidly.

[kdiamond]

Ok,

This is ADSL modem provided by ISP. It has a Router inside, but it's locked.
Well I unlocked it and now I can set it as I want.

NAPT port start = 50000
NAPT port end = 51023



http://www.dbrecordings.com/dali/nat1.jpg

Br,
Dali[/url]

[kdiamond]

Ok, forget about configuring the modem, because it can not remember the settings after power down. Probably battery is not installed or some other crap.

So it's ADSL modem that's making problems, so users can not browse and interent is so slow and almost unussable.

So what are the solutions.

1. Changing modem?
2. Limit the users, so the traffic would never overload the ADSL modem?

What do you advice?

Thank you!!!
Best Regards,
Dali

[genie]

I would suggest to start with less drastic measures - try reducing the timeouts - make close timeout for TCP 20 sec, make idle timeout 5 min or something... But if you have so many users/connections, you probably need more powerful gateway.

[kdiamond]

I can not change modem settings, because it will reset at default when power down, so it's irrelevant.

[genie]

There should be some kind of a mechanism to store changes.

[kdiamond]

There should be some kind of a mechanism to store changes.

Yes it is! If figure it out :)

So, setting:


TCP Idle Timeout(sec): 300
TCP Close Wait(sec): 20

See here:




Br,
Dali

[kdiamond]

Using this ADSL modem / router Callisto821 is imposible to use as a gateway itself. I tried. It hangs up after 1 minute. So using it as a gateway is out of the question.

But, since I managed to reset the password and get into it's settings I can try some different "ADSL modem only" settigs aswell, right? You said that NAT port range is limited to 1024 and I think I can not modify that.

So, thte question is. Will this modem EVER be capable of serving multiple 2P2 users? Should I ask my ISP for better modem?

Thank you very much for your help!!!

Best regards,
Dali

[genie]

Hi,

Frankly, I have no idea - there are numerous hardware solution available on the market with different characteristics. I would recommend to measure your network requirements first - like, number of users, number of simulteneous connections, required throughput, etc - then you can choose a router, which might be able to support your network load.

[vasilis]

Using this ADSL modem / router Callisto821 is imposible to use as a gateway itself. I tried. It hangs up after 1 minute. So using it as a gateway is out of the question.

But, since I managed to reset the password and get into it's settings I can try some different "ADSL modem only" settigs aswell, right? You said that NAT port range is limited to 1024 and I think I can not modify that.

So, thte question is. Will this modem EVER be capable of serving multiple 2P2 users? Should I ask my ISP for better modem?

Thank you very much for your help!!!

Best regards,
Dali

Hi
You have and other options to try with this modem/router
a. Try to decrease the time out of UDP on the SERVICES tab (about 30 - 60 sec).
If that fails to succeed then you must change the connection method ...
b. Use ZipB mode, in this mode the public IP tranfered to the LAN card on the WG PC.
c. Change the working state of your modem router to bridge ethernet mode and make a dialup connection PPPOE on WG PC ( this method no doubt will succeed)

If you don't know how to make these changes send me an email at amig@in.gr