RE: [Xen-users] Xen 3: Functional NAT Possible?

["Ian Pratt" <m+Ian.Pratt@xxxxxxxxxxxx>]

>       I have been trying for days now to get a working nat 
> setup with my domU's using the default nat scripts.

Just look at what the demo CD does for a nice example of how to set up
NAT.

Ian
 
> I find the biggest problem being that each time a new domU is 
> started, it gets thrown on a separate subnet.
> 
> Here is an example of dom0's network setup with 2 vm's started:
> 
> vif1.0    Link encap:Ethernet  HWaddr FE:FF:FF:FF:FF:FF
>            inet addr:10.0.1.128  Bcast:0.0.0.0  Mask:255.255.255.255
>            UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
>            RX packets:8601 errors:0 dropped:0 overruns:0 frame:0
>            TX packets:8932 errors:0 dropped:0 overruns:0 carrier:0
>            collisions:0 txqueuelen:0
>            RX bytes:1997282 (1.9 MiB)  TX bytes:2003904 (1.9 MiB)
> 
> vif9.0    Link encap:Ethernet  HWaddr FE:FF:FF:FF:FF:FF
>            inet addr:10.0.9.128  Bcast:0.0.0.0  Mask:255.255.255.255
>            UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
>            RX packets:2 errors:0 dropped:0 overruns:0 frame:0
>            TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
>            collisions:0 txqueuelen:0
>            RX bytes:684 (684.0 b)  TX bytes:0 (0.0 b)
> 
> domU-1 :
> 
> eth0      Link encap:Ethernet  HWaddr 00:50:22:22:22:01
>            inet addr:10.0.1.1  Bcast:10.0.255.255  Mask:255.255.0.0
> 
> domU-2 (default)
> 
> eth0      Link encap:Ethernet  HWaddr 00:50:22:22:22:02
>            inet addr:10.0.9.1  Bcast:10.0.255.255  Mask:255.255.255.0
> 
> domU-2 (via dhcp)
> 
> eth0      Link encap:Ethernet  HWaddr 00:50:22:22:22:02
>            inet addr:10.0.1.1  Bcast:10.0.255.255  Mask:255.255.0.0
> 
> my dhcpd conf:
> 
> subnet 10.0.0.0 netmask 255.255.0.0 {
>    range 10.0.1.10 10.0.1.100;
>    option routers 10.0.1.128;
>    option ip-forwarding off;
>    option broadcast-address 10.0.255.255;
>    option subnet-mask 255.255.0.0;
>    option domain-name-servers 10.0.1.128;
>    host mailserver {
>      hardware ethernet 00:50:22:22:22:01;
>      fixed-address 10.0.1.1;
>    }
>    host webserver {
>      hardware ethernet 00:50:22:22:22:02;
>      fixed-address 10.0.1.2;
>    }
> }
> 
> 
> The problem is, no matter what i do, the interface for the 
> domU on my dom0 gets ips in different subnets, therefore they 
> can't talk to each other and each domU requires a different 
> gateway.. is there any way around this, it is getting very 
> frustrating.
> 
> Thanks,
> Jeff
> 
> _______________________________________________
> Xen-users mailing list
> Xen-users@xxxxxxxxxxxxxxxxxxx
> http://lists.xensource.com/xen-users
> 

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