[RndTbl] shaw 2nd ip

[Gilbert E. Detillieux]

John,

I think you might be conflating two different types of virtual 
interfaces.  The eth0:n notation is for a virtual interface that works 
at the IP layer, and shares the link layer, including MAC address, of 
the parent interface.  Like this...

https://linuxconfig.org/configuring-virtual-network-interfaces-in-linux

Then there's the eth0.n notation (note the "." rather than the ":") for 
a macvlan interface that works at the link layer, and can have a 
separate MAC address (and VLAN) from the parent interface.  This shows 
an example of each...

https://unix.stackexchange.com/questions/21841/make-some-virtual-mac-address

And this gives all the gory details of various types of virtual 
interfaces for various VM hosting scenarios...

https://developers.redhat.com/blog/2018/10/22/introduction-to-linux-interfaces-for-virtual-networking

(I learned some new concepts and lots of new terminology from this last 
one.)

In any case, Linux does indeed provide a way (or more) to support 
multiple MAC addresses on one physical Ethernet interface, so setting 
this up for multiple dynamic IP addresses from Shaw should be doable.

Gilbert

On 2021-12-01 9:22 a.m., John Lange wrote:
> Not sure I understood the question but yes you can have as many IPs as 
> you want on the same nic.
> 
> It's been a while since I have done it but you just add virtual nics and 
> they look like this:
> 
> Eth0:0
> Eth0:1
> Eth0:2
> Etc.
> 
> Each one has its own Mac and can operate independently on the network. 
> They can all be static IPs or dhcp.
> 
> They can even be on different vlans.
> 
> John

-- 
Gilbert E. Detillieux		E-mail:	<gedetil at cs.umanitoba.ca>
Dept. of Computer Science	Web:	http://www.cs.umanitoba.ca/~gedetil/
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