Re: [Xen-users] Howto mix public and private ip-addresses?

[Joerg Schoppet <joerg@xxxxxxxxxxx>]

Hi,

thanks for the answer. But this is for a bridged-setup. What have I to
do for a routed-setup?

Or can I configure the network, so that the public ip-addresses use
routed-setup (as of now), and the private ip-addresses use bridged-setup?


Regards

Joerg Schoppet

Stephan Seitz wrote:
> Hi,
>
> for easier use i packed our own xen deb's with an additional
> script in /etc/xen/scripts to setup more than one bridge:
>
> the entry in xend-config.sxp has to be changed from 'network-bridge'
> to the name of the wrapper script (needs to be chmod +x)
>
> ---snip---
> #!/bin/sh
> #
> # this is an example to start more than one bridge on different vif's
> #
> #
>
> XENDIR="/etc/xen/scripts"
>
> #
> # start first bridge (xenbr0) on eth0
> #
> $XENDIR/network-bridge "$@" netdev=eth0 bridge=xenbr0 vifnum=0
>
> #
> # start another bridge (xenbr1) on eth1
> #
> #$XENDIR/network-bridge "$@" netdev=eth1 bridge=xenbr1 vifnum=1
>
> #
> # start a third bridge (xenbr2) as machine internal net segment
> #
> #DUMMY="dummy0"
> #/sbin/modprobe dummy 2>/dev/null >/dev/null && \
> #    /sbin/ifconfig $DUMMY up 2>/dev/null >/dev/null && \
> #    $XENDIR/network-bridge "$@" netdev=$DUMMY bridge=xenbr2 vifnum=2
> ---snip---
>
> uncommenting the third bridge entry, a domU config line like
>
> vif = [ 'mac=gi:ve:so:me:mac,bridge=xenbr0', 
> 'mac=gi:ve:an:ot:her:mac,bridge=xenbr2 ]
>
> should give you two domU interfaces, the second one bound to a bridge on 
> dom0's dummy0
> interface.
>
> this could be used to connect the domU's together. even dom0 could use this 
> bridge
> via dummy0.
>
> one thing to note: during tests with heavy net i/o over a dummy0 bridge i 
> found dom0
> freezing, but this could have been a dom0's kernel issue.
>
> greetings
>
> Stephan
>
>
>
> Joerg Schoppet schrieb:
>   
>> Hi,
>>
>> actually I have the following setup:
>>
>> Ubuntu Gutsy with Xen 3.1
>>
>> I have one public ip-address AND a /29 subnet with public ip-addresses.
>>
>> Xen is configured as routed-setup:
>>
>> dom0: has the public ip-address and the first ip-address from the subnet.
>> each domU has an ip-address from the subnet and as gateway the first
>> ip-address from the subnet.
>>
>> Everything works!
>>
>>
>> Now I want to put a private address 192.168.1.x to each domU and to
>> dom0, so that I can bind some network-services to these ip-addresses,
>> which should only be addressable within the virtual systems.
>>
>> How can I do this?
>>
>> I've tried the following:
>> - Added a dummy-interface to dom0 with 192.168.1.10.
>> - Added e.g. 192.168.1.11 to the vif-config in the domain-config-file of
>> a domU.
>> - Added a dummy-interface to a domU with e.g. 192.168.1.11. I tried the
>> config with no gateway, with the same gateway as the "normal" interface
>> (public ip) and with the gateway 192.168.1.10
>>
>> No luck so far.
>>
>> Any tips, tricks, hints?
>>
>>
>> Regards
>>
>> Joerg Schoppet
>>
>> _______________________________________________
>> Xen-users mailing list
>> Xen-users@xxxxxxxxxxxxxxxxxxx
>> http://lists.xensource.com/xen-users
>>     
>
>
>   
> _______________________________________________
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