[ale] Routing and Net Question (ISP-Limbo)

[John Mills]

ALErs -

I've fallen into ISP-limbo with a dead DSL connection and [surprise!]
non-responsive customer support at DirecTVDSL. Meanwhile BellSouth and COVAD
seem to be in their usual p*ssing contest over my switch to Speakeasy.

I want to set my [RH-6.2 derived] Linux box to use the LAN through 'eth0'  for
IP range 192.168.1.* and my modem dialup for other  IPs (i.e., as the default
gateway). A routing genius I ain't.

My current (DSL) version of /etc/sysconfig/network is:
******************************************************
NETWORKING=yes
HOSTNAME=otter
FORWARD_IPV4=yes
GATEWAYDEV=eth0
GATEWAY=192.168.1.1
IPX="no"
IPXINTERNALNETNUM="0"
IPXINTERNALNODENUM="0"
IPXAUTOPRIMARY="on"
IPXAUTOFRAME="on"

******************************************************

My current routing table (as given by '$ route') is:
******************************************************
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
otter.mills-atl        *               255.255.255.255 UH    0      0        0
eth0
192.168.1.0          *               255.255.255.0   U     0      0        0 eth0
127.0.0.0               *               255.0.0.0       U     0      0        0
lo
default         192.168.1.1     0.0.0.0         UG    0      0        0 eth0

******************************************************

To my inexperienced eye it appears I need two things:
(1) the 'default' entry should identify 'ppp0' as the interface, and
(2) the gateway IP and DNS selection should be left to the ISP's PPP server.

What do I need to change to use routing and DNS through 'ppp0' for all
connections except 'otter', 'localhost', and LAN (192.168.1.*) and use the PPP
server's choice of DNS?

I can bring the PPP connection up and down manually, though a 'click to
dial/hangup' widget would be nice.

'cc:'s to <john.m.mills at alum.mit.edu> appreciated.

Thanks very much.

 - Mills
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