[Xen-users] Re: HVM network troubles

["pradeep singh rautela" <rautelap@xxxxxxxxx>]

Hi,

I was able to solve the problem by passing the MAC Address in hvm
config file.Now i am able to ping the gateway and domain0 but not he
dns servers, though the entry is made in resolv.conf in HVM domain.

Any pointers on this will be appreciated.

Thanks,
          --Pradeep

On 26/01/2008, pradeep singh rautela <rautelap@xxxxxxxxx> wrote:
> Hi All,
>
> This is a really strange behaviour on my Xen machine.
> I have installed ubuntu HVM on a gutsy domain0 using
> debootstrap.Reason for using debootstrap is that my Core 2 Duo machine
> is unable to boot off ubuntu iso(s).So i used debootstrap for
> installation.
>
> I am facing some troubles with networking in HVM domainU.
>
> 1. The ethernet interface in domainU gets renamed everytime HVM
> reboots or is booted again to ethX, where X is incremented every
> reboot.
> 2. Second even if i manually assign IP address, gateway and dns
> servers in HVM domain and restart the networking in domainU, i cannot
> ping anyone except me.
>
> FWIW, o/p of brctl show in domain0 is
>
> luser@eagain:~$ brctl show
> bridge name     bridge id               STP enabled     interfaces
> xenbr0          8000.8a9591b9f217       no              tap0
>                                                         vif6.0
> xenbr100                8000.000000000000       no
>
> BTW what is xenbr100 here??
>
> xm list shows,
>
> luser@eagain:~$ sudo xm list
> [sudo] password for luser:
> Name                                      ID   Mem VCPUs      State   Time(s)
> Domain-0                                   0   772     2     r-----    872.7
> gutsy                                      6   128     1     -b----     23.9
>
> ifconfig in domain0 shows,
>
> luser@eagain:~$ ifconfig
> eth0      Link encap:Ethernet  HWaddr 00:19:D1:9F:C8:96
>           inet addr:10.100.207.40  Bcast:10.100.207.255  Mask:255.255.255.0
>           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
>           RX packets:193647 errors:0 dropped:0 overruns:0 frame:0
>           TX packets:115633 errors:0 dropped:0 overruns:0 carrier:0
>           collisions:0 txqueuelen:100
>           RX bytes:91138307 (86.9 MB)  TX bytes:10246036 (9.7 MB)
>           Base address:0x20c0 Memory:50200000-50220000
>
> 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:38164 errors:0 dropped:0 overruns:0 frame:0
>           TX packets:38164 errors:0 dropped:0 overruns:0 carrier:0
>           collisions:0 txqueuelen:0
>           RX bytes:11343712 (10.8 MB)  TX bytes:11343712 (10.8 MB)
>
> tap0      Link encap:Ethernet  HWaddr 8A:95:91:B9:F2:17
>           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:500
>           RX bytes:0 (0.0 b)  TX bytes:0 (0.0 b)
>
> vif6.0    Link encap:Ethernet  HWaddr FE:FF:FF:FF:FF:FF
>           UP BROADCAST RUNNING NOARP  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:32
>           RX bytes:0 (0.0 b)  TX bytes:0 (0.0 b)
>
> xenbr0    Link encap:Ethernet  HWaddr 8A:95:91:B9:F2:17
>           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
>           RX packets:2592 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:172861 (168.8 KB)  TX bytes:0 (0.0 b)
>
> xenbr100  Link encap:Ethernet  HWaddr 00:00:00:00:00:00
>           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:0
>           RX bytes:0 (0.0 b)  TX bytes:0 (0.0 b)
>
> Also, i have assigned same class IP address to HVM domain viz
> 10.100.207.199 . Still i cannot ping gateway or domain0.
> Neither is domain0 able to ping HVM domain.
>
> Normal networking works fine in domain0.
>
> Did anyone land into this trouble?
> Where should i start looking to get a solution?
> Any help or pointers will be greatly appreciated.
>
> Thanks,
>           Pradeep
> --
> --
> pradeep singh rautela
> http://eagain.wordpress.com
> http://emptydomain.googlepages.com
>


-- 
--
pradeep singh rautela
http://eagain.wordpress.com
http://emptydomain.googlepages.com

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