[H-GEN] routing

[Matthew Tippett]

John Boggon wrote:
> 
>  I have a problem thats been bugging me for a while and I can't find whats
> causing it. Below are the results of a netstat -r on my machine after I
> bring my ppp link up.
> 
> Destination     Gateway         Genmask            Flags   MSS Window  irtt Iface
> annex27.cc.uq.e *               255.255.255.255    UH      296 0       0    ppp0
> localnet        *               255.255.255.0      U      1500 0       0    eth0
> 127.0.0.0       *               255.0.0.0          U      3584 0       0    lo
> default         annex27.cc.uq.e 0.0.0.0            UG      296 0       0    ppp0
> 

The first and second entry are somewhat equivalent.

For a ppp interface the other end of the bounce is a ppp link going 
through to one machine.

For the eth interface the other end is a broadcast network going through
to multiple machines.   

Hence the for the network to route correctly it needs to know where to send the
packet.  Any packet (default route) needs to get to annex27 to get out.  Thus
the route to get to annex27 is through the ppp link.

If you had a gateway on your localnet, you would have go through the 
same procedure.  Default goes to a machine on localnet.  To get to localnet we
send data out over the eth0 link.

It is okay.  

The thing I would be worried about is the low MTU.  If you are mainly doing
web type traffic you might think about increasing it.  You are sending
possible a lot more packets then are needed.

Matt
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