Re: Can't ping or get some sites
From: David Efflandt (efflandt_at_xnet.com)
Date: 09/08/03
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Date: Mon, 8 Sep 2003 06:57:45 +0000 (UTC)
On 2 Sep 2003 21:43:35 -0700, Chris <shock106@yahoo.com> wrote:
> From what it looks like I can't seem to resolve IP addresses from
> domain names when I am running my NAT script. The eth1 startup script
> is set for eth0 as the gateway, and eth1 gets its IP from a DHCP
> server. Is this how I am supposed to set eth1 to resolve IPs? If not
> how do I do that?
You made a slight typo. It appears that your eth0 (not eth1) gets its IP
from DHCP. The only reason a gateway would cause DNS failure, is if the
gateway is incorrect, which makes the nameserver(s) unreachable.
> /etc/sysconfig/network-script/ifcfg-eth0
>
> DEVICE=eth0
> ONBOOT=yes
> BOOTPROTO=dhcp
>
> /etc/sysconfig/network-script/ifcfg-eth1
>
> DEVICE=eth1
> ONBOOT=yes
> BOOTPROTO=static
> IPADDR=192.168.1.1
> NETMASK=255.255.255.0
> GATEWAY=eth0
>
> For eth1 should I set gateway to something else? If so what?
You should NOT set any gateway for eth1. It sounds like you are looping a
gateway back to yourself, which may be your problem. eth1 should just
have a net route for 192.168.1.0/255.255.255.0, which network scripts
should do automatically based on your IPADDR and NETMASK.
However, any other boxes on your eth1 network would need a default gw to
your eth1 IP and you would need to have ip_forward enabled. You would
also likely need to masquerade anything going out eth0 as your eth0 IP,
since your university probably knows nothing about your private network or
how to route to it.
-- David Efflandt - All spam ignored http://www.de-srv.com/ http://www.autox.chicago.il.us/ http://www.berniesfloral.net/ http://cgi-help.virtualave.net/ http://hammer.prohosting.com/~cgi-wiz/
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