[ale] networking question (pretty involved, I think)

[Josh Murrah]

I'm setting up MobileIP version 1.00 on out User Group's server, and on my
PC at home (on the other side of a static 28.8 link), the goal is to have
your computer setup so that you can go wherever you would like, and your
box will always answer for a certain IP address.  (my home PC will always
answer to blip.salug.org).

The setup looks like this at home : 

<homePC> <----LAN----> <linux box w/ PPP link> 
                            ^
                            |
                       phone line
                            |
                       <router on the 'cloud' side>
                            ^
                            |
                       <Internet>

Please take note that the router on the cloud side is too dumb to realize
that there's a subnet on the other side of the link, and not just a single
host.  I get around this by IP masquerading at home.


Here's the question.  At startup, MobileIP runs this : 

/sbin/route add -net 224.0.0.0 netmask 240.0.0.0 dev ${INTERFACE};

Can you have a 'route' be broadcasted over more than one device???

I need MobileIP to 'listen' and 'broadcast' to the eth0 AND the ppp0
device.  Does anybody have any clue what I just said?   :)  If you do,
gimme a mail and let me know what I'm missing.  MobileIP works GREAT if
there's no ppp links involved on any of the players in the setup.  I have
a feeling that MobileIP would possibly have to be hacked to accomplish the
above, but I'm hoping that it doesn't, and that I'm just missing
something.  

Thanks in advance for reading through this LOOONG post.


Joshua Murrah, jmurrah at salug.org, http://www.salug.org/~jmurrah
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