Re: [Xen-users] How to setup my Xen network?

[lists@xxxxxxxxxxxxx]

----- "Lists" <lists@xxxxxxxxxxxxx> wrote:
> I guess what I am asking for is advice on how to make 3 DomUs
> available to the internet through one physical interface with a
> minimum of risk.  I'd rather only use one public IP but I can have
> access to several more but in different ranges as shown above.
> 
> Any documentation explaining how to do this is welcome.
> 
> Thanks
> --
> eco

Here is what I have come up with but it needs to be testted... anyone want to 
comment on this?

Xen 3.2.1 bridged with 1 physical NIC and multiple NIC Aliases and bridges


          |hardware       |Alias          |Bridge        |DomN  


                       |-> eth0    <-----> eth0   <-----> eth0 dom0
WAN <-----> eth0 <-----|-> eth0:0  <-----> eth0:2 <-----> eth0 dom1
                       |-> eth0:1  <-----> eth0:3 <-----> eth0 dom2


Dom0 - /etc/network/interfaces
------------------------------
auto eth0
iface eth0 inet static
        address 192.168.110.150
        netmask 255.255.255.0
        gateway 192.168.110.2
#       post-up ethtool -K eth0 tx off

auto eth0:0
iface eth0:0 inet static
        address 192.168.61.1
        netmask 255.255.255.0
#       post-up ethtool -K eth0 tx off

auto eth0:1
iface eth0:1 inet static
        address 192.168.62.1
        netmask 255.255.255.0
#       post-up ethtool -K eth0 tx off


Dom0 - /etc/xen/scripts/network-bridge-multiple
-----------------------------------------------
#!/bin/sh
dir=$(dirname "$0")
"$dir/network-bridge" "$@" netdev=eth0 bridge=eth0
"$dir/network-bridge" "$@" netdev=eth0:0 bridge=eth1
"$dir/network-bridge" "$@" netdev=eth0:1 bridge=eth2


Dom0 - /etc/xen/test01.test.com.cfg
-----------------------------------
kernel      = '/boot/vmlinuz-2.6.18-6-xen-686'
ramdisk     = '/boot/initrd.img-2.6.18-6-xen-686'
memory      = '64'
root        = '/dev/sda2 ro'
disk        = [
                  'phy:/dev/vm/test01.test.com-swap,sda1,w',
                  'phy:/dev/vm/test01.test.com-disk,sda2,w',
              ]
name        = 'test01'
vif         = [ 'mac=00:16:3E:EF:76:34, bridge=eth0:0' ]
on_poweroff = 'destroy'
on_reboot   = 'restart'
on_crash    = 'restart'

DomU - /etc/network/interfaces
------------------------------
auto eth0
iface eth0 inet static
        address 192.168.61.10
        netmask 255.255.255.0
        gateway 192.168.61.1
# post-up ethtool -K eth0 tx off

Both DomUs boot and I can ssh from Dom0 to DomU and vice versa.  Sadly I can't 
test from the WAN.

Any thoughts at all? :)
--
eco

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