Re: [Xen-users] Re: bridging two interfaces

[Dylan Martin <dmartin@xxxxxxxxxxxx>]

You might try just typing "ifconfig eth1 up" without an IP address.

> Ok i think i'm starting to understand the problem.
> 
> my xen host has two network cards eth0 and eth1
> the eth0 was configured with the local lan ip.
> but the eth1 was connected to the WAN but not configured.
> I had no reason for the xen server to have direct access to the internet.
> But i wanted to setup a domU on it that would have a reason to access
> the internet.
> which i have tried to do.
> 
> The only time the domU's eth1 worked properly was when the dom0 eth1 is 
> assigned
> an ip address.  currently i have assigned a bogus ip address to get
> the domU eth1 working.
> is there a better way to do this?
> 
> TIA,
> Tomoki
> 
> On 7/31/07, Tomoki Taniguchi <tomoki.taniguchi@xxxxxxxxx> wrote:
> > just an update.
> > Now I am sure my xenbr1 is note being set properly
> > it is being bridged to eth0
> > I changed the domU's eth1 settings from
> > static to dhcp, and eth1 gets an ip from the LAN
> > which is connected to the eth0 on dom0.
> >
> > so i guess my multi-network-bridge script is not working properly.
> >
> >
> > On 7/31/07, Tomoki Taniguchi <tomoki.taniguchi@xxxxxxxxx> wrote:
> > > I have a host machine with eth0 and eth1.
> > > eth0 is connected to the lan and eth1 is connected to the internet
> > >
> > > I am trying to bridge both interfaces in xend so that
> > > xenbr0=eth0 and xenbr1=eth1
> > >
> > > following some documentation i changed
> > > (network-script network-bridge)
> > > to
> > > (network-script multi-network-bridge)
> > > in /etc/xen/xend-config.sxp
> > >
> > > then i created a /etc/xen/scripts/multi-network-bridge file
> > > in put
> > > #!/bin/sh
> > > dir=$(dirname "$0")
> > > "$dir/network-bridge" "$@" vifnum=0 netdev=eth0
> > > "$dir/network-bridge" "$@" vifnum=1 netdev=eth1
> > > in side.
> > >
> > > I restart xend, which seemed to create the xenbr0 and xenbr1
> > > interfaces.
> > >
> > > I then editted the domU config file. I changed
> > > vif = [ 'bridge=xenbr0' ]
> > > to
> > > vif = [ 'bridge=xenbr0','bridge=xenbr1' ]
> > >
> > > eth0 and eth1 are created on domU and i was able to set the ip
> > > addresses for eth0 and eth1.
> > > i was able to connect to the domU host through the lan ip address
> > > assigned to eth0.
> > > but i can't seem to connect via the wan ip address assigned to eth1.
> > >
> > > from inside the domU i have tried to ping other machines on the same wan 
> > > subnet,
> > > but i get a "Destination Unreachable".  I have confirmed that the ip
> > > address and the subnet
> > > is correct.  I can't ping the domU eth1 ipaddress from the dom0 eth1
> > > ipaddress which is on the same subnet.
> > >
> > > which leads me to believe my xenbr1 is not being setup properly.
> > >
> > > can anyone help me with this?
> > >
> > > TIA
> > > Tomoki
> > >
> >
> >
> > --
> > Tomoki Taniguchi
> > SKYPE: taiyocable.com_taniguchi_tomoki
> > MSN: tomoki_taniguchi@xxxxxxxxxxx
> > YAHOO: tomoki_taniguchi
> > AIM: tomoki taniguchi
> >
> 
> 
> -- 
> Tomoki Taniguchi
> SKYPE: taiyocable.com_taniguchi_tomoki
> MSN: tomoki_taniguchi@xxxxxxxxxxx
> YAHOO: tomoki_taniguchi
> AIM: tomoki taniguchi
> 
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