[Linux-HA] route problem

Tam tam at blog-city.com
Wed Jul 6 15:18:48 MDT 2005


Thanks dude... worked wonderfully.

Tam

Matthew Soffen wrote:

> you have only 1 IP address for the 2 boxes ?
>
> normally the default gateway will only be activated if you have IP 
> addresses on network startup.
>
> If you need to bring the interface up/down, Do this:
>
> vi /etc/sysconfig/network-scripts/route-eth0
>
>
> In that file add:
> ADDRESS0=x.x.x.x
> NETMASK0=y.y.y.y
> GATEWAY0=z.z.z.z
>
> Replace x.x.x.x with the broadcast address, y.y.y.y with the netmask, 
> and z.z.z.z with the gateway address.
>
> Then you should have the route added or removed whenever you start or 
> stop the eth0 interface.
>
> Matt
>
>
>
>
> On Wed, 2005-07-06 at 20:38 +0100, Tam wrote:
>
>>We have two FC3_64 boxes with heartbeat installed and it all works 
>>swimmingly... great application... with one small exception. If the 
>>machine is rebooted then its necessary to add a route to the gateway 
>>back in after heartbeat has aliased the IP onto eth0.
>>
>>How can i make this permanant and why is the default gateway in 
>>/etc/sysconfig/network ignored? Its as if because the IP isnt allocated 
>>to the interface at boot until heartbeat does it the initial gateway 
>>directive in the network file has no effect.
>>
>>Each boot I need to run
>>
>>route add default gw <ip address withheld>
>>
>>How can I add this permanently or have heartbeat do it at failover time?
>>
>>Many thanks for any light that can be shed on this.
>>
>>Tam
>>
>>
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>>    
>>
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