Subject: Changing MAC addresses on ethernet inferfaces?
To: None <firstname.lastname@example.org>
From: Andrew Gillham <email@example.com>
Date: 01/15/2001 12:42:27
Is anyone planning to add a mechanism to override the UAA on an
I am working on a "Cisco Ether Channel" device (cec) that needs
to change the MAC address on each interface. Well, at least on
the additional interfaces, basically I plan on cloning the MAC
address of the first card assigned to the cec device.
I would also like to have the ability of putting a virtual MAC
on the cec device and have that propagated down to each member
of the EtherChannel.
I currently have code that more or less works, minus the problem
of the MAC being wrong. If I can fix that, then I should have
a driver that can do outbound load balancing across up to 4
interfaces. Combine this with a Cisco switch(*) that supports the
"set port channel" or "port group" commands, and it should be
interesting. Also, the 'cec' driver should be able to have a
'vlan' driver layered on top. It will be sweet if it works :)
Anyway, some generic method of changing the interface MAC address
would be very useful, not just for this purpose either. (think
(*) Note that some cheapo switches based on the VIA chipsets have
support for "bonding" ports 1/2 (and 8/9?) as well, at least
according to the VIA datasheet. I have no idea what devices
might be using this chipset, or whether they enable this feature.