Very Computer

Hi,

I'm trying to hook my linux computer on the internet using a cablemodem. All
is working fine. I can ping localhost and my own IP-addr. When I try to ping
someone else on the internet (the gateway, DNS-server, etc) I see both the
Tx and reseive lights of my NIC flashing, but ping says nothing!! It's like
he doesn't get the packets back. Is my routing table wrong? And if
so how does a normal routingtable looks like? Or is it something else?

Tnx,

Igor.

[Posted and mailed]

Quote:> Hi,

> I'm trying to hook my linux computer on the internet using a cablemodem. All
> is working fine. I can ping localhost and my own IP-addr. When I try to ping
> someone else on the internet (the gateway, DNS-server, etc) I see both the
> Tx and reseive lights of my NIC flashing, but ping says nothing!! It's like
> he doesn't get the packets back. Is my routing table wrong? And if
> so how does a normal routingtable looks like? Or is it something else?

There are many possible causes of this problem. I'd start with very basic
network configuration issues. Did your ISP give you a static IP address,
gateway IP address, DNS server addresses, etc.; or did they tell you to
configure your system to obtain this information automatically using DHCP?
You must first set up your computer using whichever method your ISP
specified. Chances are it'll then start working. If not, post again with
more information, including:

- The brand and model NIC you're using
- The driver you're using for the NIC (if you know)
- The results when you type "/sbin/ifconfig"
- The results when you type "/sbin/route"

--

http://members.bellatlantic.net/~smithrod
Author of books on Linux networking & WordPerfect for Linux

did you add a default route
route add default gw (your gateways ip address) dev eth0
and add your dns server in the last line of /etc/resol.conf
nameserver = {your isp dns server}  <- you may have two

Kyle Bowerman

Quote:> Hi,

> I'm trying to hook my linux computer on the internet using a
cablemodem. All
> is working fine. I can ping localhost and my own IP-addr. When I try
to ping
> someone else on the internet (the gateway, DNS-server, etc) I see
both the
> Tx and reseive lights of my NIC flashing, but ping says nothing!!
It's like
> he doesn't get the packets back. Is my routing table wrong? And if
> so how does a normal routingtable looks like? Or is it something else?

> Tnx,

> Igor.

Sent via Deja.com http://www.deja.com/
Before you buy.

Hi there  I am also having the same problem.

Here is some of my info:

However I have a static IP address. I guess that when ever the dhcp client
request info from the dhcp server the always return the same IP address.
If I run winipcfg on my windoze98 box it tells me the following.

HOSTNAME = CR213278-A.etob1.on.wave.home.com
DNS Servers = 24.2.9.33
NodeType = Broadcast
IP Address = 24.114.133.221
Subnet Mask = 255.255.255.224
Default Gateway = 24.114.133.193
DHCP Server = 24.2.9.70

Other Info:

CABLEMODEM= Terayon TeraPro
DISTRIBUTION= Slackware v7 (also doesn't work on RedHat 6.1)
NIC = SMC EtherPower II (SMC9432TX)
DRIVER = epic100.o  (insmod epic100.o debug=
ifconfig eth0 = link encap:Ethernet HWaddr 00:E0:29:31:9B:E4
                        BROADCAST MULTICAST MTU:1500 Metric:1
                        RX packets:6 errors:0 dropped:0 overruns:0 fram:0
                        TX packet:9 errors:0 dropped:0 overruns:0 carrier:0
                        collisions:0 txqueuelen:100
                        Interupt:11 Base address:0x6100
route =
Destination     Gateway     Genmask         Flags Metric Ref    Use Iface
loopback         *                   255.0.0.0         U        0          0
0 lo

Just a few quick questions:

1) How does linux know where to look for the DHCP server? (my DHCP servers
IP
is 24.2.9.70 but i have not "told" linux that)

2)Should I be using a differnt NIC? is it my NIC that is causing all my
headaches?

3) How can i see what is going on with the communications from my cablemodem
and my NIC? is there a program that i can run to see some more info?

I would greatly appreciate any help.

Thanks
Rob Morris