devil-linux-discuss

[Devil-Linux-discuss] dhcpcd config query for DSL-MAX and D-link DSL-300T

[Dick M. <di...@li...>]

I've recently changed adsl service and my adsl modem and now have a 
problem.  If the adsl line goes down, which it does occasionally when it 
feels the need to renegotiate the line rate, the DL network connection 
is disrupted and doesn't recover without manual intervention.

I suspect this is due to the modem (D-link DSL-300T) not setting up its 
internal bridging until it receives a DHCP request from DL.   I've set 
the client lease time in DL to 1800s in the hope that eventually DL will 
renew the lease and recover.

My question is: has anybody else experienced this problem and is it a 
reasonable way to work around it?  Is there a better way?

Dick

Re: [Devil-Linux-discuss] dhcpcd config query for DSL-MAX and D-link DSL-300T

[<vk...@ex...>]

> I've recently changed adsl service and my adsl modem and now have a
> problem.  If the adsl line goes down, which it does occasionally when it
> feels the need to renegotiate the line rate, the DL network connection
> is disrupted and doesn't recover without manual intervention.
....
> My question is: has anybody else experienced this problem and is it a
> reasonable way to work around it?  Is there a better way?

Not sure about a better way but I have the following script running as a
minutely cron job:

#!/bin/bash
export PATH=/bin:/usr/bin:/sbin:/usr/sbin
#echo "Checking the network connection..."
status=`ifconfig | egrep "^ppp0"`
#echo "Result: $status"
if [[ -z "$status" ]]
then
        #echo "Oops, network is down. We are in trouble. Stopping ADSL"
        pppoe-stop
        #echo "Waiting 4 seconds"
        sleep 4
        #echo "Starting ADSL"
        pppoe-start
fi


I tried hooking to ppp-down before but if the box cant reconnect
immediately things get messy.


Regards

Vesselin

Re: [Devil-Linux-discuss] dhcpcd config query for DSL-MAX and D-link DSL-300T

[Dick M. <di...@li...>]

vk...@ex... wrote:
>> I've recently changed adsl service and my adsl modem and now have a
>> problem.  If the adsl line goes down, which it does occasionally when it
>> feels the need to renegotiate the line rate, the DL network connection
>> is disrupted and doesn't recover without manual intervention.
> ....
>> My question is: has anybody else experienced this problem and is it a
>> reasonable way to work around it?  Is there a better way?
> 
> Not sure about a better way but I have the following script running as a
> minutely cron job:

It must be a better way because setting the client lease time doesn't 
work! Well, it does the first time, then it reverts.  However I just 
reduced the DHCP lease time in the modem which essentially the same. 
That does work; it means the network is down for up to half an hour but 
I think I can live with that.

Thanks for your script. Unfortunately as my modem handles the ppp 
encapsulation (and my ISP uses pppoa) using the pppoe scripts is not a 
possibility.

Dick