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Bug 1147238
| Summary: | [RFE] configure the IP for type='user' interface | ||
|---|---|---|---|
| Product: | Red Hat Enterprise Linux 7 | Reporter: | lcheng |
| Component: | libvirt | Assignee: | Ján Tomko <jtomko> |
| Status: | CLOSED DUPLICATE | QA Contact: | Virtualization Bugs <virt-bugs> |
| Severity: | unspecified | Docs Contact: | |
| Priority: | unspecified | ||
| Version: | 7.1 | CC: | dyuan, hhuang, honzhang, huding, juzhang, mzhan, qiguo, rbalakri, virt-maint, xfu |
| Target Milestone: | rc | Keywords: | FutureFeature |
| Target Release: | --- | ||
| Hardware: | Unspecified | ||
| OS: | Unspecified | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Enhancement | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2015-05-15 11:44:14 UTC | Type: | Bug |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
This appears to be a configuration issue that is currently not supported by libvirt very well. Qemu 'user' type network device, also known as SLIRP, has a qemu built-in configuration that by default uses 10.0.2.0/24 network and provides 10.0.2.15 address to the guest. This configuration can be changed throught additional options passed to the '-netdev user' argument, but libvirt doesn't currently support this. You can try running this by hand and specifying: -netdev user,net=10.0.3.0/24,dhcpstart=10.0.3.15 Re-assigning to livirt for evaluation of support addtional slirp/user related options. -vlad *** This bug has been marked as a duplicate of bug 1075520 *** |
Description of problem: When a guest with two interfaces which are 'user' type, the two virtual NICs are assigned with the same ip in guest. Version-Release number of selected component (if applicable): libvirt-1.2.8-3.el7.x86_64 qemu-kvm-1.5.3-73.el7.x86_64 kernel-3.10.0-170.el7.x86_64 How reproducible: 100% Steps to Reproduce: 1. In host. # virsh start a Domain a started # virsh dumpxml a | grep interface -A5 <interface type='user'> <mac address='52:54:00:29:ae:b7'/> <model type='virtio'/> <alias name='net0'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/> </interface> <interface type='user'> <mac address='52:56:00:29:AE:99'/> <model type='virtio'/> <alias name='net1'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x06' function='0x0'/> </interface> ... # ps -aux | grep qemu ... -netdev user,id=hostnet0 -device virtio-net-pci,netdev=hostnet0,id=net0,mac=52:54:00:29:ae:b7,bus=pci.0,addr=0x3 -netdev user,id=hostnet1 -device virtio-net-pci,netdev=hostnet1,id=net1,mac=52:56:00:29:ae:99,bus=pci.0,addr=0x6 ... 2. In guest. [root@localhost ~]# ifconfig eth38 Link encap:Ethernet HWaddr 52:54:00:29:AE:B7 inet addr:10.0.2.15 Bcast:10.0.2.255 Mask:255.255.255.0 inet6 addr: fe80::5054:ff:fe29:aeb7/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:15 errors:0 dropped:0 overruns:0 frame:0 TX packets:18 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:10178 (9.9 KiB) TX bytes:1853 (1.8 KiB) eth39 Link encap:Ethernet HWaddr 52:56:00:29:AE:99 inet addr:10.0.2.15 Bcast:10.0.2.255 Mask:255.255.255.0 inet6 addr: fe80::3656:ff:fe29:aeb7/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:7 errors:0 dropped:0 overruns:0 frame:0 TX packets:11 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:1955 (1.9 KiB) TX bytes:1358 (1.3 KiB) ... Actual results: As description. Expected results: The NICs are assigned with different ip in guest.