Ethereal-users: Re: [Ethereal-users] Wierdness in CablemodemLand?

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From: Guy Harris <gharris@xxxxxxxxx>
Date: Mon, 22 Apr 2002 01:52:55 -0700
On Mon, Apr 22, 2002 at 01:30:02AM -0700, John E. Mayorga wrote:
> Gak! Brain-Fart! OK, here is the routing table:
> 
> [root@ldap root]# route
> Kernel IP routing table
> Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
> 172.16.171.0    *               255.255.255.0   U     0      0        0 vmnet1
> 192.168.107.0   *               255.255.255.0   U     0      0        0 vmnet8
> 24.127.52.0     *               255.255.254.0   U     0      0        0 eth0
> 127.0.0.0       *               255.0.0.0       U     0      0        0 lo
> default         c-24-127-52-1.w 0.0.0.0         UG    0      0        0 eth0

Inteesting.

It appears that your *default* route is to 24.127.52.1, but that you
also have a "route" to all machines on from 24.127.52.0 through
24.127.53.254 through eth0.

I.e., your machine thinks those machines are on your subnet.  It thinks
all other machines - even if they have IP addresses beginning with
24.127.{whatever} - are on another net, and that you must send packets
to those machines through the router at 24.127.52.1.