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Re: Xorg on m68k


On Wed, 20 Feb 2008, Petr Stehlik wrote:

> > > [ETH0]
> > > Type = ptp
> > > Tunnel = tap0
> > > HostIP =
> > > AtariIP =
> > > Netmask =
> > > 
> > > IMO aratapif shouldn't be necessary (I use pretty much the same setup with 
> > > qemu), but aranym calls it anyway and complains if it fails.
> > 
> > This is pretty cool. I didn't know the uml_utilities would allow me such
> > setup. I was using it in a LAN where it doesn't need the proxy setting
> > but if somebody's got just one IP then the proxy is a very neat
> > solution. I'm adding it to ARAnyM wiki.
> I have just realized that this arp proxying is not much different from
> the bridging - for both you need a host LAN. I'd like to try out the
> "ipmasq" one day - I believe it will make it easy even for those without
> LAN.

In a broad sense both are bridging, but arp proxying works at the ip level 
and the host acts as a gateway, while bridging connects to ethernet 
networks, which means all your host network traffic goes through the 
bridge device.
If you only need ip connectivity arp proxying is the considerably simpler 
solution, e.g. it's simple to setup multiple tap devices for multiple 
emulation instances.
Bridging is only really needed if you want to use DHCP or non-ip 
protocols, but it has also a bit larger impact on the host network.

> http://wiki.aranym.org/manual#debian_gnulinux_networking

I tried it now with "Type = bridge" and then aranym won't call aratapif 
and everything still works fine. So this works too:

Type = bridge
Tunnel = tap0

The kernel will print the default ip numbers, which may be a bit 
confusing, but they aren't actually used.

The "mini network" could use a bit more explanation: It's a range of four 
ip addresses, where 132 is the network address and must be divisible by 
four, 133 is the host ip address, which also acts as the gateway for 
aranym, 134 is the ip address used by aranym and finally 135 is the 
broadcast address for this mini network.

For /etc/sysctl.conf it's probably better to explicitly mention that it 
should have a line like this:


bye, Roman

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