Have you used ifconfig? The card will not be "up" until you do a
ifconfig eth0 (ip address)
or for aliasing
ifconfig eth0:(alias) (ip address)
i.e. ifconfig eth0 192.168.0.1
In a simple example, you do not necessarily need netmask and gateway
arguments for ifconfig. Your card will not be network aware until you
have added an IP address to it. The "lo" interface is for local loopback,
and will do nothing for your network. If your command outputs, there is
nothing on eth0 except for your network. Run an ifconfig without
parameters and it will tell you what interfaces are setup. If your
network card is not listed, then it is not setup.
To tell you the truth, I have never used arp, therefore I have never seen
it necessary. I did run the arp -a on my system just a few minutes ago,
and it reflects the non-aliased other pcs on my network. Therefore,
ifconfig setup them for me.
What I would do if you are running slackware or another dist that has the
netconfig command available to root, is run that and it will setup your
rc.d scripts for you. Reboot and it should be working. If not, manually
add the ifconfig command to the same script that your route (network)
command is in.
-------------------------------------------------------
Jim Roland, President
Roland Internet Services, "The host with the most"
Offering premier web, email and CGI custom programming.
Ask us about Frontpage98 Extensions!
http://www.roland.net/ [EMAIL PROTECTED]
-------------------------------------------------------
On Sat, 28 Nov 1998, mail wrote:
> Date: Sat, 28 Nov 1998 18:25:55 -0500
> From: mail <[EMAIL PROTECTED]>
> To: [EMAIL PROTECTED]
> Subject: Help please!!! Network problem; routing? or ???
>
> Well, after about 40 hours of playing with this, I confess. I don't know
> jack about network routing.
>
> I am setting up a 2 pc network (so far). The problem is that neither PC can
> see each other, yet data "appears" to be passing to the hub. The second
> issue may be related to the first, but "arp" is showing me the the hardware
> address is not being assigned.
>
> I have debugged all of the hardware issues and don't believe there is
> anything wrong there.
>
> My server PC is set to 192.168.1.1, my second pc is 192.168.1.2
> /etc/host file is:
>
> 192.168.1.1 pc1.mydomain.com mine
> 192.168.1.2 pc2.mydomain.com yours
> 192.168.1.3 pc3.mydomain.com theirs.
>
> /etc/networks file is:
> localhost 127.0.0
> mydomain.com 192.168.0
>
>
> I have DNS up and running just fine ( or so I believe. :) )
>
> When I set my route as:
>
> ifconfig lo 127.0.0.1
> route add 127.0.0.1
> route add -net 192.168.1.0 netmask 255.255.255.0 eth0
> route add default gw 192.168.1.1
>
> At this time, I issue a 'netstat -rn' ( oops, may have been 'route')
> my route table looks incorrect. It is:
>
> Destination Gateway netmask
> metrics iface
> 192.168.1.0 * 255.255.255.0
> U 0 eth0
> loopback * 255.0.0.0
> U 0 lo
> default *
> 255.255.255.255 U 0 eth0
>
>
> DOES THIS LOOK CORRECT?
>
> I have run tcpdump and captured the output, but again, I'm not very familiar
> with it:
> 22:00:01.427518 pc1.mydoman.com > pc2.mydomain.com icmp: echo request
> 22:00:02.427518 pc1.mydoman.com > pc2.mydomain.com icmp: echo request
> 22:00:03.427518 pc1.mydoman.com > pc2.mydomain.com icmp: echo request
> and on and on.
>
> I have tried using different netmasks with my default route, none help. To
> me, it appears that the data is
> being transmitted to my network, but neither end can see each other. No, I
> have not touched the /etc/services nor the /etc/protocol files from the
> Linux Redhat 5.1 installation.
>
>
> My Second issue: #2. When I inquire into the arp table, the second PC
> which I am
> attempting to ping shows the PCs address, but no hardware address associated
> with it. I can remap the arp entry (arp -s test 00:11:22:22:33 ...) to my
> ethernet card, but I still can not ping my second box. ( yes, all of the
> blinky blinky's are going off on the back of the ethernet card and my hub.
>
> >From the second PC, not surprising, I can not ping my server. Again, the
> cards in both PCs tell me something is going on, as well as the hub.
>
>
> Thank you all very much in advance. And please, don't tell me to read of
> DNS & BIND, nor TCP/IP nor Linux Administrators book one more time. :) What
> I really would like to see is what the FULL output of the following commands
> SHOULD look like.
>
> netstat -rn
> arp
> cat /proc/net/arp
> tcpdump -c 10 (only 10 lines of a ping please. )
>
> Thanks again.
>
>
>
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>
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