[Qemu-devel] Making qemu use 10.0.3.x not 10.0.2.x

[Asheesh Laroia]

I'm running qemu (really, KVM) in a LAN that uses 10.0.2.x as the IP 
address block for workstations.  So naturally when I booted a guest, it 
couldn't access machines inside the LAN.

I tried the simplest thing that could possibly work:

        address@hidden:~/dnlds/qemu/qemu $ replace 10.0.2 10.0.3 -- `find -type 
f  | grep -v -i CVS `

Booting that resulted in a virtual machine that, as I had hoped, used 
10.0.3.15 and could therefore successfully talk to my 10.0.2.x IPs on the 
LAN.  I've attached a 'cvs diff' against HEAD that results from the above 
command.

Out of curiosity, are there plans to make the user-space networking stack 
IP range configurable at run-time rather than compile time?  I'm not 
suggesting that this patch I attached become part of CVS HEAD necessarily; 
what I do hope is that this will inspire someone else on the list to make 
the handling of this more flexible, knowing now that it's fairly easy to 
do. (-:

Even if not, this serves as a report to others that this trivial patch 
actually does what you'd hope/expect!

-- Asheesh.

--
It took me fifteen years to discover that I had no talent for writing,
but I couldn't give it up because by that time I was too famous.
                -- Robert Benchley

ten-dot-three.patch
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