lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  PHC 
Open Source and information security mailing list archives
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Date:	Thu, 21 Jun 2007 12:13:05 -0700 (PDT)
From:	David Miller <>
Subject: Re: [RFC NET 00/02]: Secondary unicast address support

From: (Eric W. Biederman)
Date: Thu, 21 Jun 2007 13:08:12 -0600

> However this just seems to allow a card to decode multiple mac addresses
> which in some oddball load balancing configurations may actually be
> useful, but it seems fairly limited.
> Do you have a specific use case you envision for this multiple mac
> functionality?


If you can't tell the ethernet card that more than 1 MAC address
are for it, you have to turn the thing into promiscuous mode.

Networking on virtualization is typically done by giving each
guest a unique MAC address, the guests have a virtual network
device that connects to the control node (or dom0 in Xen parlace)
and/or other guests.

The control node has a switch that routes the packets from the
guests either to other guests or out the real ethernet interface.

Each guest gets a unique MAC so that the switch can know which
guest an incoming packet is for.
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to
More majordomo info at

Powered by blists - more mailing lists