Re: Recovering net connection. (kinda long)
Steve Juranich wrote:
> Every once in a while, @home has a service outage (a little more frequently
> in my case since I live out in the sticks). Of course, when the net
> connection is down, I can't ping my router, or gateway, or anything other
> than my local box.
>
> The problem is that it seems that after @home has their end back up and
> running, the only way that I can get my net connection back is to reboot my
> machine. There _has_ to be another way to do this.
>
> Recently, @home dropped my connection. After I was assurred that everything
> was up and running on their end, I tried pinging the gateway and got
> nothing. I did a tcpdump -i eth0 and found that my box was making a bunch
> of arp request for the owner of the gateway address. But I also saw that
> the arp requests were saying to send a response to
> chester.fedwy1.wa.home.com. The problem is, @home doesn't know who chester
> is, they think I'm cxxxxxx-a (I forget the number right now, but it's not
> important). So, thinking that I'm clever, I changed my /etc/hostname to
> what @home said it should be. I still couldn't ping my router, and I
> goofed up X and syslog as well (I'm really clever that way).
>
> Since syslog was really being a booger and not starting up like it should
> (obviously becase of the hostname issue), I decided to reboot into single
> user mode and fix the problem. Well, I goofed that up too, and went into
> normal startup, but my box had already fixed the hostname issue and
> everything started up fine, including networking.
>
> So, I know that one way to fix this problem is to reboot my box, but I don't
> want to have to do that every time @home drops my connection.
>
> Any suggestions?
>
> Sorry for the long post. Thanks for the help.
>
> ----------------------------------------------------------------------
> Stephen W. Juranich sjuranic@ee.washington.edu
> Electrical Engineering http://students.washington.edu/sjuranic
> University of Washington http://rcs.ee.washington.edu/ssli
>
> --
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I think i have a similar setup with me... A linux box with a cable-modem that
configures by dhcp? Well.. Why don't you build a perl script that runs in daemon
mode, checking that you are up in the network. if you are disconnected it runs again
the dhcp daemon script.
Just an idea.
André Esteves - PT Portugal
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LINUX EMPOWERS!!! If you have the guts to it...
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