Re: Routing table question

[Arcady Genkin <a.genkin@utoronto.ca>]

"David H. Silber" <dhs@orbits.com> writes:

> > I'm reading "TCP/IP Administration" by O'Reily, and have a question on 
> > the routing table on my Debian box. It's quite simple:
> > 
> > Kernel IP routing table
> > Destination     Gateway         Genmask         Flags   MSS Window  irtt Iface
> > 209.226.71.0    0.0.0.0         255.255.255.0   U         0 0          0 eth1
> > 192.168.1.0     0.0.0.0         255.255.255.0   U         0 0          0 eth0
> > 0.0.0.0         209.226.71.1    0.0.0.0         UG        0 0          0 eth1
> > 
> > I have 2 nics in my computer. eth0 is connected to
> > another computer (local net), and has IP 192.168.1.2, and another one
> > is connected to the internet with DHCP.
> > 
> > My question is: why is the local network bound to default gateway?
> > Shouldn't 192.168.1.0 be bound to 192.168.1.2?
> 
> The default is for addresses whose routes are not specified by the
> routing table.  Packets destined for any computer with an IP in the
> 192.168.1.0 network will be sent out eth0.  Everything else will go
> out the (default) eth1.

David, thanks for your reply.

I still don't understand something. Doesn't the line:

192.168.1.0     0.0.0.0         255.255.255.0   U         0 0          0 eth0

mean "send everything addressed to IP's 192.168.1.* through default
gateway"? But this way the kernel will be sending communications for
192.168.1.1 through 209.226.71.1. So I must be wrong in translating
the line above...

-- 
Arcady Genkin
"... without money one gets nothing in this world, not even a certificate
of eternal blessedness in the other world..." (S. Kierkegaard)