[Xen-users] dhcp service in Dom0 not working properly

["Alejandro Martini" <alejandro.martini@xxxxxxxxx>]

I have the following problem. I've set up a dhcp server at Dom0 level, in order to provide ip addresses for the computers on my LAN. However, the dhcp daemon is not answering queries, nor giving addresses. 

Dom0 has just one ethernet adapter configured (the physical machine has only one ethernet card, which is connected to the LAN switch).

The dhcp daemon is running and listening (that's at least what netstat shows), with no errors reported to the system logs. I don't think it can be an iptables issue, since it seems that dhcp packets don't pass through the iptables chains (anyways, i also tried allowing all traffic -setting default INPUT policy == ACCEPT-, but that didn't help).

If i try a tcpdump -i eth0 'dst port 67', i can't even see DHCPREQUEST packets reaching the server (client machines, based on W2K, keep retrying until they give up, wihtout getting a valid address). I must note that connectivity on Dom0 works ok, with several services working as expected (dns, http, squid, etc.)

The server is running Debian Etch (the dhcp service configuration was copied from a physical server, in which it was working fine).

Has anyone experienced similar problems? Any ideas on how this can be fixed?


Thanks in advance,
Alex

====================================================

ii  xen-hypervisor-3.0.3-1-i386-pae   3.0.3-0-2                       The Xen Hypervisor on i386 with pae
ii  dhcp3-server                      
3.0.4-13                        DHCP server for automatic IP address assignm

Linux version 2.6.18-4-xen-686 (Debian 2.6.18.dfsg.1-12etch2) (dannf@xxxxxxxxxx) (gcc version 4.1.2
 20061115 (prerelease) (Debian 4.1.1-21))
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