Enabling a second nic(eth1) disconnects eth0

[Mark Haney]

Ezra Taylor wrote:
> DEVICE=eth0
> BOOTPROTO=static
> BROADCAST=2xx.2xx.2xx.255
> HWADDR=xxxxxxxxxxx
> IPADDR=2xx.2xx.2xx.2xx
> NETMASK=2xx.2xx.2xx.2xx
> NETWORK=2xx.2xx.2xx.2xx
> ONBOOT=yes
> TYPE=Ethernet
> GATEWAY=2xx.2xx.2xx.2xx
> 
> 
> DEVICE=eth1
> BOOTPROTO=none
> IPADDR=1xx.2xx.xxx.1xx
> NETMASK=xxx.xxx.xxx.xxx
> HWADDR=xxxxxxxxxxxx
> ONBOOT=yes
> TYPE=Ethernet
> USERCTL=no
> IPV6INIT=no
> PEERDNS=yes
> GATEWAY=1xx.xxx.xxx.xxx
> 
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> 
> On 4/25/07, Herta Van den Eynde <herta.vandeneynde at gmail.com> wrote:
>>
>> On 25/04/07, Ezra Taylor <ezra.taylor at gmail.com> wrote:
>> > Hello all:
>> >                 I'm trying to enable a second nic in my box.  The 
>> second
>> nic
>> > is on a different network and uses a different gateway.  Once I enable
>> the
>> > second(eth1) nic the first nic(eth0) loses connectivity.  Note,
>> the  nics
>> > are connected via patch panel and  the patch panel is connected to the
>> > switch.
>> >
>> > --
>> > Ezra Taylor
>>
>> Ezra,
>>
>> May be a config issue.  Could you post the output of "cat
>> /etc/sysconfig/network-scripts/ifcfg-eth[01]", please?
>>
>> Kind regards,
>>
>> Herta
>>
>> -- 
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> 
> 
> 

I'm thinking it's due to the presence of two default gateways.  I've 
never seen that setup work.  YOu'll need to specify routes for the 
second interface seperately instead of using a default gw.


-- 
Ita erat quando hic adveni.

Mark Haney
Sr. Systems Administrator
ERC Broadband
(828) 350-2415