Mailing List Archive: Re: Firewall in domU, networking in XEN

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Re: Firewall in domU, networking in XEN

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linux at thehobsons

Apr 30, 2012, 2:51 AM

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Re: Firewall in domU, networking in XEN [In reply to]

=?ISO-8859-2?Q?S=B3awek_Kosowski?= wrote:

>My question, as a XEN beginner: is this config quite feasible ?

Yes, very easy.

>What should be improved ?

Nothing ?

>Should I use bridged or routed mode in XEN ?

Bridged.

For the external interface you can do it two ways.
1) Use PCI passthrough to give the DomU firewall sole use of the NIC.
2) Create a bridge in Dom0 with the NIC attached - do not give Dom0
an address on this bridge.

Create two bridges - one each for DMS and internal networks.

When creating DomUs, give them VIFs on the bridges (ie networks) you
want them to have access to. Give Dom0 IP address(es) on the
bridge(s) you want it to be 'connected' to.

Don't use Xen network-script, use the host OS network tools to create
the bridges. Much easier and more reliable - also works the same
whether booting Xen or the host OS natively (eg when debugging or for
maintenance).

BTW - you may also want a second NIC so that your internal network is
available for other stuff (your own desktop/laptop, printers, etc) on
the internal network.

--
Simon Hobson

Visit http://www.magpiesnestpublishing.co.uk/ for books by acclaimed
author Gladys Hobson. Novels - poetry - short stories - ideal as
Christmas stocking fillers. Some available as e-books.

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Subject	User	Time
Firewall in domU, networking in XEN	slawek.k_xl at wp	Apr 30, 2012, 2:00 AM
Re: Firewall in domU, networking in XEN	ditwal001 at gmail	Apr 30, 2012, 2:28 AM
Re: Firewall in domU, networking in XEN	slawek.k_xl at wp	Apr 30, 2012, 3:58 AM
Re: Firewall in domU, networking in XEN	linux at thehobsons	Apr 30, 2012, 5:08 AM
Re: Firewall in domU, networking in XEN	ditwal001 at gmail	Apr 30, 2012, 7:19 AM
Re: Firewall in domU, networking in XEN	linux at thehobsons	Apr 30, 2012, 7:38 AM
Re: Firewall in domU, networking in XEN	linux at thehobsons	Apr 30, 2012, 2:51 AM
Re: Firewall in domU, networking in XEN	alk at ondore	Apr 30, 2012, 10:22 AM
Re: Firewall in domU, networking in XEN	slawek.k_xl at wp	May 3, 2012, 1:50 AM
Re: Firewall in domU, networking in XEN	slawek.k_xl at wp	May 7, 2012, 1:09 AM
Re: Firewall in domU, networking in XEN	list at fajar	May 7, 2012, 1:18 AM
Re: Firewall in domU, networking in XEN	linux at thehobsons	May 7, 2012, 7:58 AM
Re: Firewall in domU, networking in XEN	cdelorme at gmail	May 7, 2012, 10:57 AM
Re: Firewall in domU, networking in XEN	slawek.k_xl at wp	May 10, 2012, 1:44 AM
Re: Firewall in domU, networking in XEN	linux at thehobsons	May 10, 2012, 2:15 AM
Re: Firewall in domU, networking in XEN	Ian.Campbell at citrix	May 10, 2012, 6:01 AM
Re: Firewall in domU, networking in XEN	slawek.k_xl at wp	May 14, 2012, 1:04 AM
Re: Firewall in domU, networking in XEN	slawek.k_xl at wp	May 23, 2012, 3:56 AM
Re: Firewall in domU, networking in XEN	linux at thehobsons	May 23, 2012, 12:22 PM
Re: Firewall in domU, networking in XEN	slawek.k_xl at wp	May 24, 2012, 1:05 AM

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