Re: [Xen-devel] question about network setting for domain1

[Keir Fraser <Keir.Fraser@xxxxxxxxxxxx>]

You don't need an ifcfg-eth0 file in dom1. We pass in the IP config on
dom1's command line, and the interface will automatically be set up.

What is happening is that your ifcfg-eth0 file is overriding the
settings passed in on the command line. Because you do not specify a
gateway in the file, no default route is set up and so dom1 cannot
send packets outside its subnet.

 -- Keir

> Hi,all,
> 
> I cannot get my network in domain1 work. Here is my configuration:
> 
> in dom0:
> 
> I have two network cards, the ip addrs are 141.213.10.110 and 192.168.0.4,
> respectively. 141.213.10.110 is an external IP and can access internet
> directly. The gateway should be 141.213.10.1.
> 
> /etc/xen/vfp: the domain1 configuration file, I created domain1 using 'xm
> create vmid=1 -f /etc/xen/vfp'
> 
> Here is the network setting part:
> 
> /***************************************************************/
> #dhcp="dhcp"
> ip = "192.168.0.188"
> netmask = "255.255.255.0"
> gateway = "141.213.10.104"  // I also tried "192.168.0.1"
> # Set netmask.
> #netmask=
> # Set default gateway.
> #gateway=
> # Set the hostname.
> #hostname= "vm%d" % vmid
> /***************************************************************/
> 
> in dom1:
> 
> /etc/sysconfig/network-scripts/ifcfg-eth0:
> 
> /**************************************************************/
> DEVICE=eth0
> BOOTPROTO=static
> IPADDR=192.168.0.188
> NETMASK=255.255.255.0
> ONBOOT=yes
> TYPE=Ethernet
> /*************************************************************/
> 
> After I started dom1, I can see that the network interface is activated
> and got the ip "192.168.0.188". But neither can I connect outside from
> dom1, nor connect to dom1 from outside.
> 
> What's wrong with my setting? I don't know whether that is the gateway
> setting issue. :( I put my 'netstat -rn' dumpout info below:
> 
> /***********************************************************************/
> Kernel IP routing table
> Destination     Gateway         Genmask         Flags   MSS Window  irtt
> Iface
> 192.168.0.0     0.0.0.0         255.255.255.0   U         0 0          0
> eth0
> 169.254.0.0     0.0.0.0         255.255.0.0     U         0 0          0
> eth0
> 127.0.0.0       0.0.0.0         255.0.0.0       U         0 0          0
> lo
> /***********************************************************************/
> 
> If anybody knows how to solve this problem, please help.
> 
> Thanks,
> 
> Xin
> 
> 
> 
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