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xen-users
Re: [Xen-users] Need help with networking in DomU's
Thanks Eric. You were right -- there seemed to be a problem with the FC4
install scripts I was using. However, I was able to get it all to work with
CentOS 4.2, the Xensource tarball and enough reading to comfort me through
three arctic winters.
Datto
---------------
How did you install Xen?
If you used the install script for FC4 off the xensource website, then you may
want to think about grabbing the source and compiling it yourself. I tried
this first and after a lot of stability problems and network issues with my
domU domains I gave up and compiled Xen myself.
I'm now running Xen3 compiled from the testing source code and everything is
working very well right out of the box.
-Eric
On 1/16/06, datto@xxxxxxxxxxx <datto@xxxxxxxxxxx> wrote:
Additional info:
ifconfig inside the DomU comes up looking like this below initially after DomU
startup:
eth0 Link encap:Ethernet HWaddr 00:16:3E:6E:57:3E
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:0 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:0 (0.0 b) TX bytes:0 (0.0 b)
If I give it an ifconfig eth0 10.1.1.215 netmask 255.255.255.0 followed by an
ifconfig eth0 up it'll take the information and a new ifconfig afterward will
show the new IP and netmask but it still doesn't get me out through the bridge
and to the network and the Internet.
Any help appreciated.
Datto
---- datto@xxxxxxxxxxx wrote:
> Fedora Core 4 Dom0 and CenOS 4.1 DomU as outlined similarly at Mark Foster's
> wiki which doesn't seem to be up at the moment.
>
> uname -a on Dom0
> Linux w2knt412 2.6.12.6-xen3_2.1_fc4 #1 SMP Sun Dec 4 11:19:39 PST 2005 i686
> i686 i386 GNU/Linux
>
> Dom0 comes up and is on the network and I can VNC into Dom0 from other
> computers on the network just fine. However, my DomU's startup and seem to be
> useable from the DomU console but I can't get their networking to go out to
> the world. What changes do I need to make to which config files to get my
> DomU's to go out to the network and to the Internet? Thanks.
>
> Datto
>
> Dom0 ifconfig results
> eth0 Link encap:Ethernet HWaddr 00:50:DA:5D:7E:E0
> inet addr:10.1.1.152 Bcast:10.1.1.255 Mask:255.255.255.0
> inet6 addr: fe80::250:daff:fe5d:7ee0/64 Scope:Link
> UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
> RX packets:242514 errors:0 dropped:0 overruns:0 frame:0
> TX packets:212056 errors:0 dropped:0 overruns:0 carrier:0
> collisions:0 txqueuelen:1000
> RX bytes:20021338 (19.0 MiB) TX bytes:55288081 (52.7 MiB)
> Interrupt:5 Base address:0xd800
>
> lo Link encap:Local Loopback
> inet addr:127.0.0.1 Mask:255.0.0.0
> inet6 addr: ::1/128 Scope:Host
> UP LOOPBACK RUNNING MTU:16436 Metric:1
> RX packets:86 errors:0 dropped:0 overruns:0 frame:0
> TX packets:86 errors:0 dropped:0 overruns:0 carrier:0
> collisions:0 txqueuelen:0
> RX bytes:12077 (11.7 KiB) TX bytes:12077 (11.7 KiB)
>
> xenbr0 Link encap:Ethernet HWaddr 00:00:00:00:00:00
> inet6 addr: fe80::200:ff:fe00:0/64 Scope:Link
> UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
> RX packets:9 errors:0 dropped:0 overruns:0 frame:0
> TX packets:5 errors:0 dropped:0 overruns:0 carrier:0
> collisions:0 txqueuelen:0
> RX bytes:252 (252.0 b) TX bytes:378 (378.0 b)
>
> DomU config file
> kernel = "/boot/vmlinuz-2.6.12.6-xen3_2.1_fc4domU"
> memory = 256
> name = "cos41-03"
> nics = 1
> extra="selinux=0"
> vif=['mac=00:29:5E:18:98:FC, bridge=xenbr0']
> ip="10.1.1.215"
> netmask=" 255.255.255.0"
> gateway="10.1.1.15"
> # dhcp = "dhcp"
> hostname = "412cos4103"
> disk = [
> 'file:/opt/xen/domains/vm04/diskimage,sdb7,w','file:/opt/xen/domains/vm04/swapimage,sdb8,w'
> ]
> root = "/dev/sdb7 ro"
>
> DomU /etc/sysconfig/network
> NETWORKING=yes
> HOSTNAME=412cos4103
>
>
> DomU /etc/sysconfig/network-scripts/ifcfg-eth0
> DEVICE=eth0
> ONBOOT=yes
> BOOTPROTO=static
> IPADDR=10.1.1.215
> NETMASK=255.255.255.0
> GATEWAY=10.1.1.15
>
>
> _______________________________________________
> Xen-users mailing list
> Xen-users@xxxxxxxxxxxxxxxxxxx
> http://lists.xensource.com/xen-users
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