NIC Selection

[Martin Stone]

Whoa, I just realized that I totally misread your question!  Sorry if i insulted 
you with newbie info.  I have no idea how the kernel would select an interface 
if both were on the same network.

Sorry, *duh*, I'll go drink some more coffee now...

Martin


Martin Stone wrote:
> That's not taken care of by Mozilla, rather by your routing setup.  
> Check out the output of:
> 
> netstat -nr
> 
> That's your routing table.  By default, when an interface comes up on an 
> IP, an interface route is added through that interface for that IP 
> network - so if your eth0 came up on 10.0.1.2/24, you'd see a route in 
> there for 10.0.1.0/24 through eth0 - then there is the default (0.0.0.0) 
> route. That's usually the route that matches any network that is not 
> directly connected.  So if you had a default route through say 10.0.1.1, 
> your internet traffic would want to be routed thru 10.0.1.1 - to get to 
> 10.0.1.1, IP knows that it has to use eth0, so the traffic goes out eth0 
> destined for 10.0.1.1.
> 
> Or maybe you're just asking about where the NIC's get configured?  That 
> info is in /etc/sysconfig/network-scripts - check out ifcfg-* in that 
> directory.  Also, your default route is set by the GATEWAY entry in 
> /etc/sysconfig/network.
> 
> Hope this helps!
> Martin
> 
> 
> Timothy J. Miller wrote:
> 
>> When a system has 2 network cards that are on the same network,
>> how does FC1 select which NIC to use?  By that I mean, Mozilla starts up,
>> what causes it to use one card, say eth1 over eth0?  Anyone know?
>>
>> Thanks
>>
>> - Tim
>>
>>
> 
> 
>