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Re: [Xen-users] One nic multiple ip's

nomid wrote:
xend is bridge enabled
dom0 /etc/network/interfaces:

auto lo
iface lo inet loopback

auto eth0
iface eth0 inet static
address 193.34.X.88
gateway 193.34.X.1
domU /etc/network/interfaces:

auto lo
iface lo inet loopback

auto eth0
iface eth0 inet static
address 93.209.x.104
gateway 193.34.X.1

I try these, its right, or missing something?

No - that's not right.

Apologies, but I missed that you had 193.34.X.88 and 93.209.x.104 - two entirely different subnets. 193.34.X.1 is not a valid gateway for 93.209.x.104, so that machine would have no connectivity.

BTW - this isn't specific to XEN, it's a general networking/IP addressing issue.

I'm still trying to figure out exactly what you are being provided with in terms of IP addresses. Is 193.34.X.88 the only address you have in the 193.34.X.0/25 subnet ? Did your ISP give you a gateway address to use in the 93.209.x.104/25 subnet ?

My **guess** is that 193.34.X.88 is your "outside" address, and that your ISP routes the 93.209.x.0/25 addresses to it. If that is case, you need a router between 193.34.X.88 and 93.209.x.0/25. My preference is to use a separate DomU for a two port firewall (see the thread titled "Question about using Xen in a periphery firewall/router" from last week). Alternatively you'll want to run your Som0 in routed mode with 193.34.X.88 as your outside address, and something in 93.209.x.0/25 for your inside address.

Simon Hobson

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author Gladys Hobson. Novels - poetry - short stories - ideal as
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