On Tue, Feb 18, 2003 at 11:52:22AM -0600, Jonathan Lemon wrote:
> In article 
><local.mail.freebsd-questions/[EMAIL PROTECTED]> 
>you write:
> >On Tue, Feb 18, 2003 at 11:02:30AM -0600, Terry Todd wrote:
> >> On Mon, Feb 17, 2003 at 02:08:19PM +0100, Cliff Sarginson wrote:
> >> > On Mon, Feb 17, 2003 at 01:30:09PM +0100, Andrea Franceschini wrote:
> >> > > On Sat, Feb 15, 2003 at 08:28:35AM -0600, Terry Todd wrote:
> >> > > > When you have more than one of the same type of NIC card in one
> >> > > > machine is there a way to insure that the NIC numbering remains
> >> > > > attached to the same card / MAC address if more cards are added or
> >> > > > they are moved around?
> >> > > > 
> >> 
> >> Here's an example.
> >> 
> >> The original setup:
> >>  
> >> $ ifconfig -a
> >> rl0: flags=8802<BROADCAST,SIMPLEX,MULTICAST> mtu 1500
> >>         ether 00:e0:29:85:49:b6
> >>         media: Ethernet autoselect (10baseT/UTP)
> >>         status: no carrier
> >> rl1: flags=8802<BROADCAST,SIMPLEX,MULTICAST> mtu 1500
> >>         ether 00:e0:29:85:49:d0
> >>         media: Ethernet autoselect (10baseT/UTP)
> >>         status: no carrier
> >>  
> >> After the cards are switched around in the PCI slots:
> >>  
> >> $ ifconfig -a
> >> rl0: flags=8802<BROADCAST,SIMPLEX,MULTICAST> mtu 1500
> >>         ether 00:e0:29:85:49:d0
> >>         media: Ethernet autoselect (10baseT/UTP)
> >>         status: no carrier
> >> rl1: flags=8802<BROADCAST,SIMPLEX,MULTICAST> mtu 1500
> >>         ether 00:e0:29:85:49:b6
> >>         media: Ethernet autoselect (10baseT/UTP)
> >>         status: no carrier
> >>  
> >> How can I keep rl0 associated with MAC 00:e0:29:85:49:b6 
> >> and rl1 associated with MAC 00:e0:29:85:49:d0 and still
> >> be able to add cards or move them around?
> >
> >About the best you can do is use ifconfig(8) to set the MAC address at
> >the same time as you configure the interface:
> >
> >    ifconfig rl0 ether 00:e0:29:85:49:b6
> >    ifconfig rl1 ether 00:e0:29:85:49:d0
> >
> >which will cause the MAC address to stick with the interface number,
> >rather than the actual card.  That will work if you just keep the two
> >cards as you've shown here, but if you add a new card that happens to
> >end up as rl0 then you'll probably end up with a mess.
> >
> >As far as I know, there's no way of wiring down interface numbers to
> >PCI bus slots, analogously to the way you can wire down SCSI devices
> >by bus, target and LUN --- see the section on 'SCSI DEVICE
> >CONFIGURATION' in LINT.  You'ld probably have to go a bit linux-ish
> >and have, say, eth0 as the generic name for an ethernet interface
> >independant of the actual chipset on the NIC in order to make the most
> >sense of that sort of wiring-down idea.
> 
> Actually, this capability has been in 5.0 for a long time, but I don't
> think that it was ever MFC'd to 4.x.  There are network aliases for the
> actual physical devices, which appear as /dev/netN, where N is the 
> index number used.  These can be wired either by name or ether number
> at boot time:
> 
>    Allow wiring of net aliases in /boot/device.hints of the form:
>         hint.net.1.dev="lo0"
>            or
>         hint.net.12.ether="00:a0:c9:c9:9d:63"
> 
> 
> So for the original poster, you could do (in 5.0):
> 
>       hint.net.1.ether="00:e0:29:85:49:b6"
>       hint.net.2.ether="00:e0:29:85:49:d0"
> 
>       > ifconfig net1 
>       rl1: flags=8802<BROADCAST,SIMPLEX,MULTICAST> mtu 1500
>               ether 00:e0:29:85:49:b6
>               media: Ethernet autoselect (10baseT/UTP)
>               status: no carrier
> 
>       > ifconfig net2
>       rl0: flags=8802<BROADCAST,SIMPLEX,MULTICAST> mtu 1500
>               ether 00:e0:29:85:49:d0
>               media: Ethernet autoselect (10baseT/UTP)
>               status: no carrier
> 
> And the 'net1','net2' aliases will remain bound to whichever driver has
> those actual ethernet addresses, regardless of PCI ordering.
> --
> Jonathan
> 

Thanks.

That works for after the system is booted up and running.

I tried adding ifconfig_net1/2 lines to rc.conf and it didn't work.

ifconfig_net1="inet 10.0.0.3 netmask 255.0.0.0"

Terry Todd

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