Xen users - Dec 2005 - mii-tools in guest domain

Has anyone been able to get mii-tools to work in a guest domain? I am
trying to use an application we develop within the guest and it uses
this to extract eth0 information. It does this to determine the alias to
use before bringing up additional IPs on an aliased eth0 interface. 
 
SO I guess it is two questions, does mii work in a guest? And will a
guest domain allow for several different ip''s on an aliased interface?
Sincerely, 
  
Jamison Moore


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I guess this is a little old, but since it lacks a reply...

Jamie Moore wrote:
> Has anyone been able to get mii-tools to work in a guest domain? I am
> trying to use an application we develop within the guest and it uses
> this to extract eth0 information. It does this to determine the alias to
> use before bringing up additional IPs on an aliased eth0 interface.
Utilities like ''mii-tool'' and ''ethtool''
won''t be able to get any useful
information from a domU''s virtual Ethernet interface. It is an
"idealized" network interface - it doesn''t know about link
speeds,
duplex, link state, autonegotiation, or anything like that. (It doesn''t
need to, either.)
> SO I guess it is two questions, does mii work in a guest? And will a
> guest domain allow for several different ip’s on an aliased interface?
You can have as many IP aliases as you want on a domU''s network
interface. If it''s bridged to a physical network, it will ARP for all
those addresses, just like a real NIC would. If you''re using a routed
configuration, then obviously you''d need to make sure the additional
addresses are routed to the intended destination. There''s nothing
particularly special about it.

-- 
Derrik Pates
demon@devrandom.net

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