Re: [Xen-users] Dom0-Domu Communication

[David Cemin <davidcemin@xxxxxxxxx>]

Thank you for your quick answer,

So, I manage to force a mac inside my dom1. Heres my config:

# cat /etc/xen/dom1

kernel = "/boot/vmlinuz-2.6.32.25-xen" #CHANGE IT TO YOUR VMLINUZ

ramdisk = "/boot/initrd.img-2.6.32.25-xen" #CHANGE IT TO YOUR INITRD

memory = 512

name = "dom1"

vif = ['mac=00:16:3e:63:29:ab,bridge=xenbr0']

#vif = ['bridge=xenbr0']

#disk = ['file:/xen/domains/dom1/diskimage.img,xvda1,w','file:/xen/domains/dom1/swapimage.img,xvda2,w']

disk = ['phy:/dev/lvm-vol/dom1,xvda1,w','phy:/dev/lvm-vol/dom1swp,xvda2,w']

#DHCP - remove the ip, gateway and netmask lines, and include:# dhcp = "dhcp"

#ip = "ip add"

#gateway = "ip add"

#netmask = "255.255.0.0"

dhcp = "dhcp"

root = "/dev/xvda1 ro"

serial= "/dev/hvc0"

extra = '4'

>

>

>

ifconfig inside dom0:

# ifconfig

eth0      Link encap:Ethernet  HWaddr 70:5a:b6:94:b8:65  

          inet addr:16.127.73.174  Bcast:16.255.255.255  Mask:255.0.0.0

          inet6 addr: fec0::f:725a:b6ff:fe94:b865/64 Scope:Site

          inet6 addr: 2002:107f:493a:f:725a:b6ff:fe94:b865/64 Scope:Global

          inet6 addr: fe80::725a:b6ff:fe94:b865/64 Scope:Link

          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1

          RX packets:5348 errors:0 dropped:0 overruns:0 frame:0

          TX packets:1144 errors:0 dropped:0 overruns:0 carrier:0

          collisions:0 txqueuelen:0 

          RX bytes:936544 (936.5 KB)  TX bytes:204687 (204.6 KB)

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:120 errors:0 dropped:0 overruns:0 frame:0

          TX packets:120 errors:0 dropped:0 overruns:0 carrier:0

          collisions:0 txqueuelen:0 

          RX bytes:10272 (10.2 KB)  TX bytes:10272 (10.2 KB)

peth0     Link encap:Ethernet  HWaddr 70:5a:b6:94:b8:65  

          inet addr:16.127.73.175  Bcast:16.127.75.255  Mask:255.255.252.0

          inet6 addr: fe80::725a:b6ff:fe94:b865/64 Scope:Link

          UP BROADCAST RUNNING PROMISC MULTICAST  MTU:1500  Metric:1

          RX packets:5944 errors:0 dropped:0 overruns:0 frame:0

          TX packets:1304 errors:0 dropped:0 overruns:0 carrier:0

          collisions:0 txqueuelen:100 

          RX bytes:1059860 (1.0 MB)  TX bytes:215651 (215.6 KB)

          Memory:d7400000-d7420000 

vif1.0    Link encap:Ethernet  HWaddr fe:ff:ff:ff:ff:ff  

          inet6 addr: fe80::fcff:ffff:feff:ffff/64 Scope:Link

          UP BROADCAST RUNNING PROMISC MULTICAST  MTU:1500  Metric:1

          RX packets:0 errors:0 dropped:0 overruns:0 frame:0

          TX packets:4275 errors:0 dropped:6 overruns:0 carrier:0

          collisions:0 txqueuelen:32 

          RX bytes:0 (0.0 B)  TX bytes:351516 (351.5 KB)

ifconfig inside dom1:

root@xen-hypervisor:~# ifconfig

eth0      Link encap:Ethernet  HWaddr 00:16:3e:63:29:ab  

          inet addr:16.127.73.171  Bcast:16.127.75.255  Mask:255.255.252.0

          inet6 addr: fec0::f:216:3eff:fe63:29ab/64 Scope:Site

          inet6 addr: 2002:107f:493a:f:216:3eff:fe63:29ab/64 Scope:Global

          inet6 addr: fe80::216:3eff:fe63:29ab/64 Scope:Link

          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1

          RX packets:7457 errors:0 dropped:0 overruns:0 frame:0

          TX packets:19 errors:0 dropped:0 overruns:0 carrier:0

          collisions:0 txqueuelen:1000 

          RX bytes:525254 (525.2 KB)  TX bytes:2295 (2.2 KB)

          Interrupt:245 

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: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)

I dont have any peth0 or vif inside dom1s ifconfig. So now maybe the connection to dom1 inside dom0 is wrong(vif1.0    Link encap:Ethernet  HWaddr fe:ff:ff:ff:ff:ff  )

And I am having the same mac on peth0 and eth0 .. where do I configure it .. inside xend-config.sxp ?

Thank you again

2010/11/22 Digimer <linux@xxxxxxxxxxx>

On 11/22/2010 12:03 PM, David Cemin wrote:

Hello,

I think that I am having some problems regarding networking, or maybe I
misunderstood something. I have the following config:

Dom0 with a bridge to dom1 and dom3.

# xm list
Name                                        ID   Mem VCPUs      State
Time(s)
Domain-0                                     0  3268     4     r-----
  91.7
dom1                                         1   512     1     -b----
   1.4
dom3                                         2   512     1     -b----
   1.2


ifconfig in dom0 shows:
eth0      Link encap:Ethernet  HWaddr 70:5a:b6:94:b8:65

Virtual device copied from "real" peth0.

peth0     Link encap:Ethernet  HWaddr 70:5a:b6:94:b8:65

Real eth0 device

vif1.0    Link encap:Ethernet  HWaddr fe:ff:ff:ff:ff:ff

Connects dom1's eth0

vif2.0    Link encap:Ethernet  HWaddr fe:ff:ff:ff:ff:ff

Connect's dom3's eth0

ifconfig in dom1:

eth0      Link encap:Ethernet  HWaddr 70:5a:b6:94:b8:65

Connects to dom0's vif1.0

peth0     Link encap:Ethernet  HWaddr 70:5a:b6:94:b8:65

vif1.0    Link encap:Ethernet  HWaddr fe:ff:ff:ff:ff:ff

vif2.0    Link encap:Ethernet  HWaddr fe:ff:ff:ff:ff:ff

These should not be here. They should only exist on dom0.

ifcofig in dom3:

eth0      Link encap:Ethernet  HWaddr 00:16:3e:52:f4:b5

Connects to vif2.0 on dom0.

hth,

--
Digimer
E-Mail: digimer@xxxxxxxxxxx
AN!Whitepapers: http://alteeve.com
Node Assassin:  http://nodeassassin.org

--
David Cemin
mobile: +55 51 93523097
home:   +55 51 32763785
email: davidcemin@xxxxxxxxx

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