Xen users - Jun 2009 - Networking: two dynamic IPs

Hello.

My host is CentOS 5.3 and Xen is v3.2 (from RPMs provided from Gitco).  One of
my DomUs is Trixbox that has been having some intermittent issues that I believe
are due to it being behind my firewall (which is a Linksys router).  My ISP
gives me two dynamic IPs, so I would like to put my Trixbox DomU on this second
dynamic IP.  The Trixbox DomU is an HVM DomU.

What is the best way to do this?  I will likely use a small 4-port switch to
connect my router and Xen host to it so each can get their own IP, however I am
not sure how this should be setup on Dom0?  A couple ideas I had are:

  1.) Just plug the NIC that is to connect to my ISP, create a bridge with a
dummy/private IP, and connect the Trixbox to that bridge.  I am not sure if that
will pass the IP I get from my ISP to the Trixbox DomU?
  2.) If possible, do a PCI pass-through of the NIC that is to connect to my ISP
to the Trixbox DomU.  Is it possible to do this?

Would either/both of my ideas above work?  Any other suggestions?  (feel free to
point me to the correct documentation, if it exists)

Thanks, in advance, for you help.

-Alan

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What is your side of the ISP setup?

Presumably your linksys router is getting a DHCP address from your  
cable modem? Is this a real Internet address (no ppoe)?
Why does your ISP assign two addresses? Have they given you a router?

Sent from my iPhone

On Jun 27, 2009, at 9:21 PM, lists@murrell.ca wrote:
> Hello.
>
> My host is CentOS 5.3 and Xen is v3.2 (from RPMs provided from  
> Gitco).  One of my DomUs is Trixbox that has been having some  
> intermittent issues that I believe are due to it being behind my  
> firewall (which is a Linksys router).  My ISP gives me two dynamic  
> IPs, so I would like to put my Trixbox DomU on this second dynamic  
> IP.  The Trixbox DomU is an HVM DomU.
>
> What is the best way to do this?  I will likely use a small 4-port  
> switch to connect my router and Xen host to it so each can get their  
> own IP, however I am not sure how this should be setup on Dom0?  A  
> couple ideas I had are:
>
>  1.) Just plug the NIC that is to connect to my ISP, create a bridge  
> with a dummy/private IP, and connect the Trixbox to that bridge.  I  
> am not sure if that will pass the IP I get from my ISP to the  
> Trixbox DomU?
>  2.) If possible, do a PCI pass-through of the NIC that is to  
> connect to my ISP to the Trixbox DomU.  Is it possible to do this?
>
> Would either/both of my ideas above work?  Any other suggestions?   
> (feel free to point me to the correct documentation, if it exists)
>
> Thanks, in advance, for you help.
>
> -Alan
>
> _______________________________________________
> Xen-users mailing list
> Xen-users@lists.xensource.com
> http://lists.xensource.com/xen-users
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