Re: [gentoo-user] Re: configure wlan0 route metric

[Indi <thebeelzebubtrigger@gmail.com>]

On Wed, Apr 13, 2011 at 09:10:01PM +0200, Mick wrote:
> On Wednesday 13 April 2011 18:07:30 Indi wrote:
> > On Wed, Apr 13, 2011 at 06:10:05PM +0200, Mick wrote:
> > > On 13 April 2011 16:35, Indi <thebeelzebubtrigger@gmail.com> wrote:
> > > > On Wed, Apr 13, 2011 at 01:50:02PM +0200, deadeyes wrote:
> > > >> I was searching around the gentoo forums for ifmetric and found this
> > > >> piece of code that can be added in /etc/conf.d/net:
> > > >> postup() {
> > > >>    local metric=0
> > > >> 
> > > >>    case "${IFACE}" in
> > > >>       eth0) metric=0 ;;
> > > >>       eth1) metric=1 ;;
> > > >>    esac
> > > >>    ifmetric "${IFACE}" "${metric}"
> > > >> 
> > > >>    return 0
> > > >> }
> > > > 
> > > > Hey, that works very well here -- thanks!
> > > > Been wanting that solution for some time now.
> > > > 
> > > > :)
> > > 
> > > My apologies!  It took some time between reading your message and
> > > replying to it - by which time I had forgotten the finer points.
> > > 
> > > Whether you set NIC priority in the /etc/conf.d/net file or in a post
> > > up script, the result is the same.  One NIC will have a higher
> > > priority than another for ALL connections.  This is because NICs do
> > > not do NATing.  They will send all packets out to the gateway
> > > (192.168.1.1) and the router at the gateway will determine which
> > > packet is forwarded to the Internet and which to the LAN.  So, if you
> > > do not want to prioritise one NIC over another, it may be better to
> > > use iptables to route LAN packets via a particular NIC instead.
> > 
> > Actually I do want to prioritise one over the other, when both are
> > connected. Using netplug with one wired and one wireless, and the
> > referenced script in /etc/conf.d/net.
> > 
> > Am I doing it wrong? :)
> 
> No, not at all.  It's only that the OP wanted to prioritise the wired 
> interface against the wireless, but *only* for connections to the LAN.
> -- 
> Regards,
> Mick


Ah, sorry I missed that part. It does seem to do just I wanted though.

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