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Legacy Forums => General Discussion (Legacy) => Topic started by: Howard Dunn on September 25, 2003, 04:52:05 PM

Title: Disconnection from Modem
Post by: Howard Dunn on September 25, 2003, 04:52:05 PM

Hi,

I currently use NTL as my ISP (cable) and e-smith 5.6 as my server / gateway. The problem I have is that about every 3/4 days - my modem resets.. Perhaps getting a new IP address (I need to check that).

When this happens - the modem comes back up OK but I have to bounce my e-smith server in order for it to be able to access the internet.

Does anyone know if there is a way around this.?

Regards
Howard

Title: Re: Disconnection from Modem
Post by: Nathan Fowler on September 26, 2003, 07:23:30 AM

Next time, instead of bouncing, try doing:

ifdown ethx
ifup ethx

Where "ethx" is the interface connected to your Cable Modem.

Let me know if that restores connectivity.

Thanks,
Nathan

Title: Re: Disconnection from Modem
Post by: Howard Dunn on September 26, 2003, 12:11:39 PM

Thanks Nathan.

Is there anyway I can get e-smith to automatically check the connectivity and then run these commands if there is a problem..?

Thanks
Howard

Title: Re: Disconnection from Modem
Post by: Nathan Fowler on September 26, 2003, 06:44:36 PM

You/we could create a script that would try to ping the second hop on your route, and if there was 100% packet loss, it would ifdown/ifup your interface.

Then, we could cron-job it to run every X minutes, where X is a number you are comfortable with.

Hope this helped,
Nathan

Title: Re: Disconnection from Modem
Post by: Howard on September 26, 2003, 10:14:32 PM

Excellent.. Sounds like just what I'm looking for..

Being a newbie to e-smith / linux - is there a website with instructions for doing this type of thing?

Thanks again.
Howard

Title: Re: Disconnection from Modem
Post by: Nathan Fowler on September 26, 2003, 10:53:20 PM

Nah, but I can work with you.  Before we get started, lets first make sure that brining the interface down/up restores connectivity.

Title: Re: Disconnection from Modem
Post by: Howard Dunn on October 01, 2003, 08:00:14 AM

HI Nathan,

Sorry about the delay in replying. I will test that bringing the interface up restores connectivity.

Regards
Howard