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Date:      Fri, 24 Jan 2003 14:31:35 -0500
From:      "Doug Reynolds" <mav@wastegate.net>
To:        "FreeBSD Questions" <freebsd-questions@FreeBSD.org>, "Louis LeBlanc" <leblanc+freebsd@keyslapper.org>
Subject:   Re: PPP strangeness - hosed my /etc/hosts file
Message-ID:  <20030124193133.6E72A48463@wastegate.net>
In-Reply-To: <20030122222229.GH95122@keyslapper.org>

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On Wed, 22 Jan 2003 17:22:29 -0500, Louis LeBlanc wrote:

>On 01/22/03 05:00 PM, Doug Reynolds sat at the `puter and typed:
>> On Wed, 22 Jan 2003 12:49:12 -0500, Louis LeBlanc wrote:
>> 
>> >Hey all.  I've been with Verizon DSL for 3 or 4 months now, and just
>> >when I think I'm getting things right, I start seeing some really
>> >screwy behavior.  ifconfig shows the following for the PPP interface
>> >(tun0)
>> >tun0: flags=8051<UP,POINTOPOINT,RUNNING,MULTICAST> mtu 1492
>> >        inet6 fe80::2a0:c9ff:fe74:12a3%tun0 prefixlen 64 scopeid 0x8 
>> >        inet 68.160.2.89 --> 10.9.64.1 netmask 0xff000000 
>> >        inet 68.160.25.67 --> 10.9.76.1 netmask 0xff000000 
>> >        Opened by PID 67
>> >
>> >The weird thing is that the first IP is not valid.  I'm sure this is
>
>> >/etc/hosts and httpd.conf files were hosed because of it, so I'm going
>> >to have to figure out how to spot this problem in the scripts, and at
>> >least warn about it, if not fix it on the fly.
>> 
>> sounds like your being assigned a new ip address and not getting the
>> routing cleared.  on dialup, i add this:
>> 
>> /etc/ppp/ppp.linkup
>> /etc/ppp/ppp.linkdown
>> 
>> and add
>> 
>> CONNECTIONNAME:   <-- change to your connection name
>>   iface clear
>> 
>> 
>> and that does the trick for me..  with dialup, ez-ipupdate would grab
>> the first one (which was the previous IP) and send it in wrong
>> 
>
>I started to ask what ez-ipupdate was, but I took a look at the ports.
>I get my IP updated fine on zoneedit, but it doesn't require the IP in
>the request.  I just have ppp.etherup call lynx for each domain as
>follows:
>
>/usr/local/bin/lynx -dump -auth=UID:PASS 'http://dynamic.zoneedit.com/auth/dynamic.html?host=mydomain.org'
>
>Zoneedit gets the IP from the tcp connection anyway, so I got lucky there.
>
>I take it you mean that you added iface clear to the ppp.linkdown?  I
>thought I was supposed to add it to ppp.conf.
>
>I'm also trying to figure out the best way to kill ppp and restart the
>connection clean without having to reboot the machine.  Any ideas
>there?

at least for me, I had to add iface clear to ppp.linkdown as well,
because it would then delete it after the connection is dropped.  

about killing ppp, I always do a 'killall ppp' and that always seems to
do the trick..  you might add the set server line to add a pppctl
socket.  it is as good as running it in interactive mode, and you can
spy on the connection and open/close/etc to ppp


---
doug reynolds | the maverick | mav@wastegate.net



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