Re: [K12OSN] LTSP Server with Xfree86 questions

pat ring (pat_ring@hotmail.com)
Mon, 15 Jul 2002 18:18:43 -0500

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Hi Chris...



2.  I am a little confused as to what and how the IP's work with the 2
>nics.  eth0 is the workstation side and eth1 is the network side.  I get
>that part, but can I use 10. x.x.x private addresses on the network side
>and still comunicate with the 192.168.0.x numbers on the workstation (LAN)
>side. OR do I need to give it a class C number on the network side?  I
>would prefer not to use the DHCP on the netywork side if possible.  Also
>what files need to be edited if I change the number from the eth0 side so
>I can still dhcp the workstations?
>
>Thanks,
>
>Chris Rears
>Computer / Network Technician
>David Douglas School District
>SHOP:    (503)256-6505
>PAGER: (503)790-4541
>

This might come through twice...Sorry.

I asked the same question a couple weeks ago because my LTSP segment and LAN 
segment both used 192.168.0.x.  This created a conflict, obvously, that 
wouldn;t allow the LTSP client segment to get beyond the LTSP segment.  Mike 
Rambo and Arnel PAstrana assisted me with fixing the problem.  I created a 
gouge sheet that might help you.  I noticed that chnging the default DHCP on 
ETH1 and chnging from 0.x to 1.x on ETH0 didn't seem to update the network 
scripts as described below.  This sheet works for me every time.  I hope it 
helps you.  Please let me know if you have any questions.  Pat

1.  Edit the following files, changing the 0 in 192.168.0.x to something 
other than 0 up to 255:

/etc/exports
/etc/hosts
/etc/hosts.allow
/etc/dhcpd.conf
/etc/rc.d/init.d/nat

/opt/ltsp/i386/etc/lts.conf
/opt/ltsp/templates/k12linux/hosts-update.sh
/opt/ltsp/templates/k12linux/setup-update.sh

2.  Check network-scripts for proper configuration of eth0 and eth1:

a.  /etc/sysconfig/network-scripts/ifcfg-eth0 should look like the 
following:

DEVICE=eth0
BOOTPROTO=static
IPADDR=192.168.1.254
NETMASK=255.255.255.0
NETWORK=192.168.1.0
BROADCAST=192.168.1.255
ONBOOT=yes

b.  /etc/sysconfig/network-scripts/ifcfg-eth1 should look something like 
this:

DEVICE=eth1
BOOTPROTO=static
IPADDR=192.168.0.88
NETMASK=255.255.255.0
NETWORK=192.168.0.0
BROADCAST=192.168.0.255
ONBOOT=yes


c.  etc/sysconfig/network Should have the following entries:

GATEWAY=192.168.0.1
GATEWAYDEV=eth1



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