No Ethernet Connection At Boot

[Craig White]

On Mon, 2005-03-21 at 00:04 +0900, Mark Sargent wrote:
> Mark Sargent wrote:
> 
> > Craig White wrote:
> >
> >> On Sun, 2005-03-20 at 17:59 +0900, Mark Sargent wrote:
> >>  
> >>
> >>> Hi All,
> >>>
> >>> came home 2 nights ago. Booted up, but, internet connection was 
> >>> down. Asked sharemate, who said he didn't un why(but said it was the 
> >>> same for him, apparently). Anyway, after some time, he said he had 
> >>> fixed it. But, it still wouldn't connect. I then 
> >>> deactivated/reactivated the connection and success. Now, when I boot 
> >>> up, I get the sane occurrence, and have to deactivate/reactivate the 
> >>> connection. I'm not seeing errors in boot.log, so what could this 
> >>> be..? This is happening only with eth0(internet/lan nic), eth1 is 
> >>> okay, as a client pc can obtain an ip through dhcp on this machine. 
> >>> Cheers.
> >>>
> >>> PC has 2 nics
> >>> eth0 is static set to 192.168.0.17
> >>> eth1 is static set to 192.168.1.1
> >>>   
> >>
> >> ---
> >> is ONBOOT = YES
> >>
> >> cat /etc/sysconfig/network-scripts/eth0
> >>
> >> does
> >> service network restart
> >>
> >> turn it on or off?
> >>
> >> I would think that /var/log/messages and /var/log/dmesg might be better
> >> places to look for errors with respect to the eth0 interface at bootup
> >>
> >> Craig
> >>
> >>  
> >>
> > Hi All,
> >
> > Craig,
> >
> >> cat /etc/sysconfig/network-scripts/eth0
> >
> > doesn't exist
> >
> > service network restart brought me to where I didn't have a connection 
> > again, and had to deactivate/reactivate again. Will check those logs 
> > real soon. Cheers.
> >
> > Mark Sargent
> >
> Hi All,
> 
> I can ping, though and I'm getting an IP, just can't access the net or 
> mail. Weird. Cheers
---
sorry... s/h/b

cat /etc/sysconfig/network-scripts/ifcfg-eth0

can't ping across net or get off lan because you need a 'default
gateway' setup might put these in the above mentioned ifcfg-ethX

On a multi-homed system, I tend to not put default gateway in any
network device configuration but rather put it
into /etc/sysconfig/network

I can't tell what your default gateway should be 
>>> eth0 is static set to 192.168.0.17
>>> eth1 is static set to 192.168.1.1

but would guess that it is either 192.168.0.1 or 192.168.0.254 from the
notion that if eth0 is down, you aren't getting anywhere.

if that is the case...

edit /etc/sysconfig/network

add the lines...

GATEWAYDEV='eth0'
GATEWAY='192.168.0.1' #or whatever the proper address should be

and then - 'service network restart'

and you're good to go

Craig