[Gllug] imasq inconsistent

[Branden Faulls]

Paul Cupis wrote:

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>On Tuesday 12 November 2002 21:03, Branden Faulls wrote:
>  
>
>>Paul Cupis wrote:
>>    
>>
>>>You need to add a script in /etc/ppp/ip-up.d to run /etc/init.d/ipmasq
>>>restart and a script in /etc/ppp/ip-down.d to do the same.
>>>
>>>Actually, I just checked one of my systems here, and I have set up this
>>>file:
>>>
>>>paul at main:~$ cat /etc/ppp/ip-up.d/60ipmasq
>>>#! /bin/sh
>>>
>>>PATH=/sbin:/bin:/usr/sbin:/usr/bin
>>>
>>>test -f /usr/sbin/ipmasq || exit 0
>>>
>>>set -e
>>>
>>>/usr/sbin/ipmasq
>>>paul at main:~$
>>>
>>>Which does the job for me. I have the exact same file in
>>>/etc/ppp/ip-down.d (hmmm, that should probably be a symlink).
>>>
>>>Well, that is how I solved that problem here, but now I look at it again,
>>>the script should probably call /etc/init.d/ipmasq restart.
>>>      
>>>
>>I set up /etc/ppp/ip-up.d/00ipmasq as described and it still requires a
>>fair amount of voodoo to get it working.
>>
>>I still have to manually restart my ethernet interface ($ ifconfig eth0
>>.....)
>>...then restart masquerading ($ ipmasq)
>>... and then it may or may not work after starting my dialup connection
>>($ pon)
>>
>>This requires a lot of  jumping back and forth as root, not exactly the
>>elegant solution I'd hoped for.
>>
>>Plus side is that I can access the Web from $MS and Linux over wireless
>>(although I can't ping outside IP addresses from them?!?)  Things are
>>peachy until I have to reboot!
>>
>>Which network script is fubar-ed?
>>    
>>
>
>Could you give a little more detail on your network setup, please?
>
>I presume eth0 is the interface to your internal network, and ppp0 is your 
>dialup interface. Scripts added to /etc/ppp/ip-up.d will only be run when 
>your ppp connection is activated (using pon, for example). If you want a 
>script (such as ipmasq) to run whenever you bring up the eth0 interface, you 
>can put a script in /etc/network/if-up.d (from memory).
>
>Oh, and you may find using ifup/ifdown a better solution than calling ifconfig 
>directly, especially if your /etc/network/interfaces configuration is 
>correct.
>
>Paul Cupis
>- -- 
>paul at cupis.co.uk
>
>  
>
Internal network configured on eth0 using 192.168.0.0/24 address space. 
 Physically this is just an ethernet card crossover cabled to a wireless 
access point and linux and m$ boxes  connected over wireless.

Dialup access on ppp0 to ISP.

/etc/ppp/ip-up.d  and /etc/network/if-up.d/   each contain 00ipmasq   
which is:

#!/bin/bash
#
# ipmasq.ip-up    Reinitializes the ipmasq settings when PPP comes up
#
# v1.0    19 July 1998
#####

test -x /usr/sbin/ipmasq || exit 0

if [ -e /etc/ipmasq/ppp ]; then
    /etc/init.d/ipmasq restart
fi

Of all the combinations, it will only work if I restart the eth0 
interface and rerun ipmasq after starting the ppp0 connection.  

Branden Faulls





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