[ale] linux router questions

[sangell at nan.net]

So then you could have each card represent two ip addresses in seperate
subnets and route between the virtual subnet? HmmmmCan you build a route
table on a virtual interface?

I am using redhat 7.2.

Thanks for your time.




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                    Chris Ricker                                                                                   
                    <kaboom at gatech       To:     ale at ale.org                                                       
                    .edu>                cc:                                                                       
                                         Subject:     Re: [ale] linux router questions                             
                    02/07/2002                                                                                     
                    11:42 AM                                                                                       
                    Please respond                                                                                 
                    to ale                                                                                         
                                                                                                                   
                                                                                                                   




On Thu, 7 Feb 2002 sangell at nan.net wrote:

> Works great as a two station setup. Will it work to load 4 nics in one
box
> and route all the traffic internally? Is there a way to create a virtual
> lan and only use 2 NICs?

Assuming I'm following what you're doing, the simplest thing to do would be

to take one of your machines with 2 NICs, and then use virtual interfaces.

You can have an arbitrary number of virtual interfaces associated with a
single physical interface.

ifconfig eth0:0

can be used to configure them

I think you're using RH, right?  It supports /etc/sysconfig/ifcfg-$DEV:#
and
/etc/sysconfig/ifcfg-$DEV-range# files which can be used to configure lots
of virtual interfaces.  Check out /etc/sysconfig/ifup-aliases for syntax.

Of course, it will also work to put 4 NICs into a box, assuming available
expansion slots.

later,
chris


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