[Xen-users] noob installing xen and experiencing limited network connectivity

[Matias <m0topilot@xxxxxxxxx>]

Hi Everyone,
Having a tough time getting networking working properly on dom0 seems that I 
have
limited network connectivity.  I have searched high and low, need some help.  I
will include output from xen-bugtool at the bottom of this post.  But first some
system specs.

Installed (open source version):
kernel-xen-2.6.16.33-3.0.4.1.i386.rpm
xen-3.0.4.1-1.src.rpm
xen-3.0.4.1-1.i386.rpm
xen-devel-3.0.4.1-1.i386.rpm

Hardware:
Dell Poweredge 2850 with two Intel 3Ghz dual core procs with 2GB of memory with
raid 5 configured with a perc/4si controller using 3 147GB scsi drives.
Ethernet controller: Intel Corporation 82541GI/PI Gigabit Ethernet Controller 
(rev 05)

Host Operating System:
RHEL4.4

I have installed all the rpms with no errors. I probably won't need the srpm.

Here is what I am experiencing:
1.
When I boot using the Xen kernel and log into the machine as root,
I can ping an IP address on the Internet but I can't ping any IP on my subnet.

2.
It seems that DNS is not resolving because I try pinging www.yahoo.com.

3.
Using a web browser, I can *not* pull up Google by it's IP address.

I restart the machine using the RHEL kernel (no xen) I can ping domains, open
a browser pull up a website, ping other machines on my subnet.  So I know that
my net connection to the outside works and communication within the subnet 
works.

The routing tables look identical running `route -n`.

4.
When I boot the xen kernel, I notice an error with "dcdbas device driver using 
DKS"
and that it can't find the xen kernel source.  I have tried searching for 
something
*like* kernel-source-xen.rpm but nothing.  You'd think that would be the 5th rpm
on the download list.  Not sure if dcdbas is causing my errors.  If I had a 
compatible
kernel source for the kernel-xen-2.6.16.33 I wouldn't be having this issue.

Thanks for your time and knowledge,
Matt


from messages:
Mar 24 01:13:26 hotel1 kernel: e1000: eth0: e1000_probe: Intel(R) PRO/1000 
Network Connection
Mar 24 01:13:26 hotel1 kernel: e1000: eth0: e1000_watchdog_task: NIC Link is Up 
100 Mbps Full Duplex
Mar 24 01:13:20 hotel1 ifup: Determining IP information for eth0...
Mar 24 01:13:20 hotel1 dhclient: DHCPREQUEST on eth0 to 255.255.255.255 port 67
Mar 24 01:13:20 hotel1 dhclient: DHCPDISCOVER on eth0 to 255.255.255.255 port 
67 interval 8
Mar 24 01:13:20 hotel1 dhclient: DHCPREQUEST on eth0 to 255.255.255.255 port 67
Mar 24 01:13:20 hotel1 network: Bringing up interface eth0:  succeeded
Mar 24 01:13:32 hotel1 ntpd[3388]: Listening on interface eth0, 
192.168.1.200#123
Mar 24 02:08:14 hotel1 ifup: Determining IP information for eth0...
Mar 24 02:08:15 hotel1 dhclient: DHCPREQUEST on eth0 to 255.255.255.255 port 67
Mar 24 02:08:15 hotel1 network: Bringing up interface eth0:  succeeded
Mar 24 02:08:26 hotel1 kernel: e1000: eth0: e1000_probe: Intel(R) PRO/1000 
Network Connection
Mar 24 02:08:26 hotel1 kernel: ADDRCONF(NETDEV_UP): eth0: link is not ready
Mar 24 02:08:26 hotel1 kernel: e1000: eth0: e1000_watchdog_task: NIC Link is Up 
100 Mbps Full Duplex
Mar 24 02:08:26 hotel1 kernel: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
Mar 24 02:08:30 hotel1 ntpd[5451]: Listening on interface eth0, 
192.168.1.200#123
Mar 24 02:08:48 hotel1 kernel: ADDRCONF(NETDEV_UP): peth0: link is not ready
Mar 24 02:08:49 hotel1 kernel: e1000: peth0: e1000_watchdog_task: NIC Link is 
Up 100 Mbps Full Duplex
Mar 24 02:08:49 hotel1 kernel: ADDRCONF(NETDEV_CHANGE): peth0: link becomes 
ready
Mar 24 02:08:50 hotel1 kernel: device peth0 entered promiscuous mode
Mar 24 02:08:50 hotel1 kernel: xenbr0: port 2(peth0) entering learning state
Mar 24 02:08:50 hotel1 kernel: xenbr0: port 2(peth0) entering forwarding state

"warning" lines from xend.log:
[root@hotel1 opt]# cat xend.log | grep -i warning
[2007-03-18 14:21:48 xend 5857] WARNING (XendAuthSessions:27) python-pam is 
required for XenAPI support.
[2007-03-18 14:21:49 xend.XendDomainInfo 5946] WARNING (XendDomainInfo:149) /local/domain/0/vm is missing. recreate is 
confused, trying our best to recover
[2007-03-18 14:23:15 xend 6972] WARNING (XendAuthSessions:27) python-pam is 
required for XenAPI support.
[2007-03-18 14:26:44 xend 7675] WARNING (XendAuthSessions:27) python-pam is 
required for XenAPI support.
[2007-03-18 14:26:48 xend 7676] WARNING (XendAuthSessions:27) python-pam is 
required for XenAPI support.
[2007-03-18 14:27:50 xend 7691] WARNING (XendAuthSessions:27) python-pam is 
required for XenAPI support.
[2007-03-18 14:27:56 xend 7699] WARNING (XendAuthSessions:27) python-pam is 
required for XenAPI support.
[2007-03-18 14:27:56 xend 7713] WARNING (XendAuthSessions:27) python-pam is 
required for XenAPI support.
[2007-03-18 14:42:45 xend 5861] WARNING (XendAuthSessions:27) python-pam is 
required for XenAPI support.
[2007-03-18 14:42:45 xend.XendDomainInfo 5942] WARNING (XendDomainInfo:149) /local/domain/0/vm is missing. recreate is 
confused, trying our best to recover
[2007-03-18 14:44:04 xend 6976] WARNING (XendAuthSessions:27) python-pam is 
required for XenAPI support.
[2007-03-18 15:42:25 xend 5867] WARNING (XendAuthSessions:27) python-pam is 
required for XenAPI support.
[2007-03-18 15:42:26 xend.XendDomainInfo 5956] WARNING (XendDomainInfo:149) /local/domain/0/vm is missing. recreate is 
confused, trying our best to recover
[2007-03-18 15:43:46 xend 6982] WARNING (XendAuthSessions:27) python-pam is 
required for XenAPI support.
[2007-03-20 07:26:31 xend 5862] WARNING (XendAuthSessions:27) python-pam is 
required for XenAPI support.
[2007-03-20 07:26:31 xend.XendDomainInfo 6000] WARNING (XendDomainInfo:149) /local/domain/0/vm is missing. recreate is 
confused, trying our best to recover
[2007-03-20 07:27:54 xend 6975] WARNING (XendAuthSessions:27) python-pam is 
required for XenAPI support.
[2007-03-23 23:29:35 xend 5879] WARNING (XendAuthSessions:27) python-pam is 
required for XenAPI support.
[2007-03-23 23:29:35 xend.XendDomainInfo 5939] WARNING (XendDomainInfo:149) /local/domain/0/vm is missing. recreate is 
confused, trying our best to recover
[2007-03-23 23:30:54 xend 6997] WARNING (XendAuthSessions:27) python-pam is 
required for XenAPI support.
[2007-03-24 00:19:36 xend 5869] WARNING (XendAuthSessions:27) python-pam is 
required for XenAPI support.
[2007-03-24 00:19:37 xend.XendDomainInfo 5962] WARNING (XendDomainInfo:149) /local/domain/0/vm is missing. recreate is 
confused, trying our best to recover
[2007-03-24 00:20:56 xend 6987] WARNING (XendAuthSessions:27) python-pam is 
required for XenAPI support.
[2007-03-24 02:08:46 xend 5887] WARNING (XendAuthSessions:27) python-pam is 
required for XenAPI support.
[2007-03-24 02:08:47 xend.XendDomainInfo 6022] WARNING (XendDomainInfo:149) /local/domain/0/vm is missing. recreate is 
confused, trying our best to recover
[2007-03-24 02:10:08 xend 7003] WARNING (XendAuthSessions:27) python-pam is 
required for XenAPI support.



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