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xen-users
Re: [Xen-users] Debian 4.0, domU's can not get network access
 
On 4/25/07, ben henrion <benjhenrion.xen@xxxxxxxxx> wrote:
HI i' ve tried xen 3.0.4 with etch 4.0 and ive exactly the same problem.
 
 
 2007/4/15, Nicolai Lang <
nicolai@xxxxxxxxxx>:
Hi all,
  I have installed a Debian 4.0 (newly released), compiled and installed Xen. All went as I am used to from Ubuntu.
  I created a new guest with Debian Etch debootstrap, and it boots without problems. But it can not fetch an IP address from my DHCP server
 (10.13.15.1). When I use TCPDump on xenbr0, it only shows the requets being transmitted but nothing is recieved.
  I hope I have included all relevant information below, and I hope someone
 can help me where to look for the cause. I have searched widely in the Wiki, google and mailinglist.
  Once I suceed, I will post an new article on the Wiki with a step-by-step guide to compiling and installing Xen from source on Debian 
4.0.
  Thank you very much in advance
  Best regards Nicolai
 
  root@judas:~# ifconfig eth0      Link encap:Ethernet  HWaddr 00:0E:A6:F9:95:61           inet addr:
10.13.15.50
  Bcast:10.13.15.255  Mask:
255.255.255.0           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1           RX packets:677 errors:0 dropped:0 overruns:0 frame:0
           TX packets:522 errors:0 dropped:0 overruns:0 carrier:0           collisions:0 txqueuelen:1000           RX bytes:85879 (83.8 KiB)  TX bytes:96248 (93.9 KiB)           Interrupt:17 Base address:0x6000
  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)
  xenbr0    Link encap:Ethernet  HWaddr 00:00:00:00:00:00
 
          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:0
           RX bytes:0 (0.0 b)  TX bytes:0 (0.0 b)
 
  ---->We can just notice that when xend start, it don't put the PETH0 and vif0.0 in the bridge Xenbr0, plus we can  add that xend don't creat PETH0 and 
vif0.0....
  
maybe a bug with ETCH 4.0.....
 
   
 
root@judas:~# iptables -L
 Chain INPUT (policy ACCEPT) target     prot opt source               destination
  Chain FORWARD (policy ACCEPT) target     prot opt source               destination
  Chain OUTPUT (policy ACCEPT) 
target     prot opt source               destination
 root@judas:~#
 
  Console during startup: Setting up networking.... Configuring network interfaces...Internet Systems Consortium DHCP Client V3.0.4 Copyright 2004-2006 Internet Systems Consortium. 
All rights reserved. For info, please visit http://www.isc.org/sw/dhcp/
  Listening on LPF/eth0/00:16:3e:00:01:03
 Sending on   LPF/eth0/00:16:3e:00:01:03 Sending on   Socket/fallback
 DHCPREQUEST on eth0 to 255.255.255.255 port 67 DHCPREQUEST on eth0 to 
255.255.255.255 port 67 DHCPREQUEST on eth0 to 
255.255.255.255 port 67 DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 4 DHCPDISCOVER on eth0 to 
255.255.255.255 port 67 interval 4
 DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 9 DHCPDISCOVER on eth0 to 
255.255.255.255 port 67 interval 10 DHCPDISCOVER on eth0 to 
255.255.255.255 port 67 interval 15 DHCPDISCOVER on eth0 to 
255.255.255.255 port 67 interval 12 DHCPDISCOVER on eth0 to 
255.255.255.255 port 67 interval 7 No DHCPOFFERS received.
 
  ----> No peth0 in the bridge ... so we can't have a network....
 
   
 
After the startup - notice that vifl1.0 and xenbr0 recieves data, but nothing is transmitted 
 
 
 
 
root@judas:~# ifconfig eth0      Link encap:Ethernet  HWaddr 00:0E:A6:F9:95:61           inet addr:10.13.15.50
  Bcast:10.13.15.255  Mask:
255.255.255.0           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1           RX packets:960 errors:0 dropped:0 overruns:0 frame:0           TX packets:826 errors:0 dropped:0 overruns:0 carrier:0           collisions:0 txqueuelen:1000
           RX bytes:108668 (106.1 KiB)  TX bytes:203020 (198.2 KiB)           Interrupt:17 Base address:0x6000
  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)
  vif1.0    Link encap:Ethernet  HWaddr FE:FF:FF:FF:FF:FF           UP BROADCAST RUNNING NOARP  MTU:1500  Metric:1           RX packets:15 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:3420 (3.3 KiB)  TX bytes:0 (0.0 b)
  xenbr0    Link encap:Ethernet  HWaddr FE:FF:FF:FF:FF:FF
           UP BROADCAST RUNNING NOARP  MTU:1500  Metric:1           RX packets:15 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:3420 (3.3 KiB)  TX bytes:0 (0.0 b)
  root@judas:~# brctl show bridge name     bridge id               STP enabled     interfaces xenbr0          8000.feffffffffff       no              vif1.0
  deamon.log: Apr 15 17:17:44 judas logger: /etc/xen/scripts/block: add XENBUS_PATH=backend/vbd/1/770 Apr 15 17:17:44 judas logger: /etc/xen/scripts/block: add XENBUS_PATH=backend/vbd/1/769 Apr 15 17:17:45 judas logger: /etc/xen/scripts/vif-bridge: online
 XENBUS_PATH=backend/vif/1/0 Apr 15 17:17:45 judas logger: /etc/xen/scripts/block: Writing backend/vbd/1/769/node /dev/loop0 to xenstore. Apr 15 17:17:45 judas logger: /etc/xen/scripts/block: Writing backend/vbd/1/769/physical-device 7:0 to xenstore.
 Apr 15 17:17:45 judas logger: /etc/xen/scripts/block: Writing backend/vbd/1/769/hotplug-status connected to xenstore. Apr 15 17:17:45 judas logger: /etc/xen/scripts/vif-bridge: Successful vif-bridge online for 
vif1.0, bridge xenbr0. Apr 15 17:17:45 judas logger: /etc/xen/scripts/vif-bridge: Writing backend/vif/1/0/hotplug-status connected to xenstore. Apr 15 17:17:46 judas logger: /etc/xen/scripts/block: Writing backend/vbd/1/770/node /dev/loop1 to xenstore.
 Apr 15 17:17:46 judas logger: /etc/xen/scripts/block: Writing backend/vbd/1/770/physical-device 7:1 to xenstore. Apr 15 17:17:46 judas logger: /etc/xen/scripts/block: Writing backend/vbd/1/770/hotplug-status connected to xenstore.
  messages: Apr 15 17:16:14 judas dhcdbd: message_handler: message handler not found under /com/redhat/dhcp/eth0 for sub-path eth0.dbus.get.reason Apr 15 17:16:14 judas dhcdbd: message_handler: message handler not found
 under /com/redhat/dhcp/eth0 for sub-path eth0.dbus.get.reason Apr 15 17:16:16 judas dhcdbd: message_handler: message handler not found under /com/redhat/dhcp/eth0 for sub-path eth0.dbus.get.host_name Apr 15 17:16:16 judas dhcdbd: message_handler: message handler not found
 under /com/redhat/dhcp/eth0 for sub-path eth0.dbus.get.domain_name Apr 15 17:16:16 judas dhcdbd: message_handler: message handler not found under /com/redhat/dhcp/eth0 for sub-path eth0.dbus.get.nis_domain Apr 15 17:16:16 judas dhcdbd: message_handler: message handler not found
 under /com/redhat/dhcp/eth0 for sub-path eth0.dbus.get.nis_servers Apr 15 17:16:17 judas kernel: Bridge firewalling registered Apr 15 17:17:45 judas kernel: device vif1.0 entered promiscuous mode Apr 15 17:17:45 judas kernel: ip_tables: (C) 2000-2006 Netfilter Core Team
 Apr 15 17:17:49 judas kernel: xenbr0: port 1(vif1.0) entering learning state Apr 15 17:17:49 judas kernel: xenbr0: topology change detected, propagating Apr 15 17:17:49 judas kernel: xenbr0: port 1(vif1.0) entering forwarding
 state
  xend-debug.log: Xend started at Sun Apr 15 17:16:16 2007. ifdown: interface eth0 not configured SIOCSIFNAME: Device or resource busy
 
 
  Somebady have found something???? 
 _______________________________________________
 Xen-users mailing list Xen-users@xxxxxxxxxxxxxxxxxxx 
http://lists.xensource.com/xen-users
   
 
  --  Benjamin HENRION Elève de 4eme année de l' EXIA (Nancy) Ecole supérieure d'informatique Spé Réseaux
 _______________________________________________ Xen-users mailing list Xen-users@xxxxxxxxxxxxxxxxxxx
 http://lists.xensource.com/xen-users
    check your xend-config.sxp in /etc/xen and take a  look at your network configuration.. 
  try to replace (network-script network-dummy) with  (network-script network-bridge) 
  Hope it can help! --  René Jr Purcell
 Chargé de projet, sécurité et sytèmes Techno Centre Logiciels Libres, http://www.tc2l.ca/  Téléphone : (418) 681-2929 #124
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