Bug 597363
| Summary: | Static only DHCP not supported in network configs. | |||
|---|---|---|---|---|
| Product: | Red Hat Enterprise Linux 5 | Reporter: | Neil Wilson <neil> | |
| Component: | libvirt | Assignee: | Jiri Denemark <jdenemar> | |
| Status: | CLOSED ERRATA | QA Contact: | Virtualization Bugs <virt-bugs> | |
| Severity: | medium | Docs Contact: | ||
| Priority: | low | |||
| Version: | 5.5 | CC: | berrange, jdenemar, jialiu, llim, veillard, virt-maint, xen-maint | |
| Target Milestone: | rc | |||
| Target Release: | --- | |||
| Hardware: | All | |||
| OS: | Linux | |||
| Whiteboard: | ||||
| Fixed In Version: | libvirt-0.8.2-4.el5 | Doc Type: | Bug Fix | |
| Doc Text: | Story Points: | --- | ||
| Clone Of: | ||||
| : | 611793 (view as bug list) | Environment: | ||
| Last Closed: | 2011-01-13 23:13:06 UTC | Type: | --- | |
| Regression: | --- | Mount Type: | --- | |
| Documentation: | --- | CRM: | ||
| Verified Versions: | Category: | --- | ||
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | ||
| Cloudforms Team: | --- | Target Upstream Version: | ||
| Embargoed: | ||||
Patch sent upstream as https://www.redhat.com/archives/libvir-list/2010-September/msg00134.html Fix built into libvirt-0.8.2-4.el5 Verified this bug with libvirt-0.8.2-8.el5 on RHEL5u6 Server X86_64(KVM, xenfv, and xenpv), RHEL5u6 Client I386(xenfv and xenpv) and RHEL5u6 Server IA64 (xenfv and xenpv), PASSED.
Steps:
1. Prepare virtual network xml file:
# cat s1.xml
<network>
<name>s1</name>
<forward mode='nat'/>
<bridge name='s1' stp='on' delay='0' />
<ip address='192.168.100.1' netmask='255.255.255.0'>
<dhcp>
<host mac='00:16:36:7b:4a:21' name='new-host1' ip='192.168.100.33' />
</dhcp>
</ip>
</network>
2. Define and start the network.
# virsh net-define s1.xml
# virsh net-start s1
3. Check dnsmasq process:
# ps -ef|grep dnsmasq|grep s1
nobody 5095 1 0 07:17 ? 00:00:00 /usr/sbin/dnsmasq --strict-order --bind-interfaces --pid-file=/var/run/libvirt/network/s1.pid --conf-file= --listen-address 192.168.100.1 --except-interface lo --dhcp-range 192.168.100.1,static --dhcp-no-override --dhcp-hostsfile=/var/lib/libvirt/dnsmasq/s1.hostsfile
4. Start a domain which is using the dnsmasq dhcp server.
5. In guest, get IP - 192.168.100.33 and hostname successfully.
So this bug is fixed.
This functionality has been broken in version 0.8.7. https://bugzilla.redhat.com/show_bug.cgi?id=667643 refers. An advisory has been issued which should help the problem described in this bug report. This report is therefore being closed with a resolution of ERRATA. For more information on therefore solution and/or where to find the updated files, please follow the link below. You may reopen this bug report if the solution does not work for you. http://rhn.redhat.com/errata/RHEA-2011-0060.html |
Description of problem: If you specify only 'host' entries in the dhcp section, then no dnsmasq is started up. Version-Release number of selected component (if applicable): Using library: libvir 0.6.3 How reproducible: Steps to Reproduce: Use network <network> <name>brbb6fd2</name> <uuid>f90a9a4b-449b-ae12-c0ac-d80255141a77</uuid> <forward dev='bond0' mode='route'/> <bridge name='brbb6fd2' stp='off' forwardDelay='0' /> <ip address='10.187.111.209' netmask='255.255.255.252'> <dhcp> <host mac='00:16:3e:bb:6f:d2' name='xenhvmlvm' ip='10.187.111.210' /> </dhcp> </ip> </network> and start the network. Actual results: No dnsmasq is started. Expected results: Should start up a dnsmasq serving only static entries by including an appropriate dhcp-range flag. For example above should including something like: --dhcp-range=10.187.111.209,static Additional info: workaround is to include the network broadcast address as a single range. So for above that would be <dhcp> <range start='10.187.111.211' end='10.187.111.211' /> <host mac='00:16:3e:bb:6f:d2' name='xenhvmlvm' ip='10.187.111.210' /> </dhcp>