Re: routing question

[Michael Heldebrant <hmike@portalofevil.com>]

On Wed, 2001-11-28 at 17:02, shock wrote:
> * Michael Heldebrant (hmike@portalofevil.com) spake thusly:
> > 
> > I am guessing that the problem must be on the interfaces on
> > the debian machine.  What does ifconfig on the debian machine show?
> 
> # ifconfig eth0
> eth0      Link encap:Ethernet  HWaddr 00:C0:F0:57:C9:AF
>           inet addr:192.168.1.99  Bcast:192.168.1.255 Mask:255.255.255.0
>           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
>           RX packets:2827 errors:0 dropped:0 overruns:0 frame:0
>           TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
>           collisions:0 txqueuelen:100
>           RX bytes:228510 (223.1 Kb) TX bytes:0 (0.0 b)
>           Interrupt:10 Base address:0x7000
> 
> # route -ee
> Kernel IP routing table
> Destination     Gateway         Genmask         Flags Metric Ref    Use Iface    MSS   Window irtt
> localnet        *               255.255.255.0   U     0      0        0 eth0     40    0      0
> default         192.168.1.254   0.0.0.0         UG    0      0        0 eth0     40    0      0

> the interface /is/ up, because i can successfully gateway to the DSL
> modem.  i just can't see 192.168.1.10 on machine "a" and machine "a"
> can't see this box.

I'm all out of ideas other than these guesses.

1.  Try taking the DSL modem off the hub for a bit and retest
connectivity.  All packets destined for the 192.168.1.0 network may be
going to 192.168.1.254 as the gateway, meaning that "e" is expecting the
dsl modem to route it.  This would lead to:

2.  Add static routes to each machine for the other ie:
on a
route add -host 192.168.1.99 dev eth0

on e
route add -host 192.168.1.10 dev eth0

I'm confused at this point, hopefully some other networking guru can
step in and solve this.

--mike