Internet connection problem

From: Dan (danviau_at_isys.ca)
Date: 10/30/03 

Date: Wed, 29 Oct 2003 21:42:44 -0500

Hi

I've been using Linux on and off for a while and I have come up with a
problem I can't seem to figure out.
I first setup Linux-Mandrake 9.0 to the Internet through a ethernet card
and my Network. Now I removed the ethernet card and added a modem. The
modem connects ok but I can't ping anything other than localhost.

Here's the ifconfig output:

lo Link encap:local Loopback
        inet addr:127.0.0.1 Mask:255.0.0.0
        UP LOOPBACK RUNNING MTU:16436 METRIC:1
        RX packets:38 errors:0 dropped:0 overruns:0 frame:0
        TX packets:38 errors:0 dropped:0 overruns:0 carrier:0
        collisions:0 txqueuelen:0
        RX bytes:3408 (3.3 Kb) TX bytes:3408 (3.3 Kb)

ppp0 Link encap: Point-to-Point Protocol
        inet addr:66.206.227.7 P-t-P:10.20.100.1 Mask:255.255.255.255
        UP POINTOPOINT RUNNING NOARP MULTICAST MTU:1524 Metric:1
        RX packets:12 errors:0 dropped:0 overruns:0 frame:0
        TX packets:12 errors:0 dropped:0 overruns:0 carrier:0
        collisions:0 txqueuelen:3
        RX bytes:630 (630.0 b) TX bytes:783 (783.0 b)

and heres is the output of the route command:

kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
10.20.100.1 * 255.255.255.255 UH 0 0 0 ppp0
127.0.0.1 * 255.0.0.0 U 0 0 0 lo
default 10.20.100.1 0.0.0.0 UG 0 0 0 ppp0

Any help would be appreciated.

Thank you

Dan

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