Hi
I am trying to create an openvswitch using libvirt and to use a virtual
network - I mean not the physical one my computer is connected to.
I want the vm to receive an ip in the range .168.100.2,192.168.100.220
Is it possible to do that?
I think it doesn't work because of the dhcp not working
I defined a network
<network>
<name>private</name>
<bridge name='virbr0'/>
<forward mode='bridge'/>
<virtualport type='openvswitch'/>
</network>
I defined an ip address to virbr0
ip addr add 192.168.100.2 dev virbr0
ip link set virbr0 up
I tried to launch a process to enable a dhcp
/usr/sbin/dnsmasq --strict-order --bind-interfaces --interface=eth2
--listen-address 192.168.100.1 --dhcp-range
192.168.100.2,192.168.100.220 --dhcp-lease-max=101 --dhcp-no-override
But it didn't help
But get no ip for the ovs port when I launch the instance.
ci-info: +++++++++++++++++++++++++Net device
info++++++++++++++++++++++++++
ci-info:
+--------+------+--------------+-------------+-------------------+
ci-info: | Device | Up | Address | Mask |
Hw-Address |
ci-info:
+--------+------+--------------+-------------+-------------------+
ci-info: | lo | True | 127.0.0.1 | 255.0.0.0 | .
|
ci-info: | eth1 | True | . | . |
52:54:00:24:16:29 |
ci-info: | eth0 | True | 172.16.5.136 | 255.255.0.0 |
52:54:00:44:01:28 |
In the bridge port vnet1 get assigned to virbr0
Bridge "virbr0"
Port "virbr0"
Interface "virbr0"
type: internal
Port "vnet1"
Interface "vnet1"
I also tried to add-port a real interface to virbr0, but it made no
change. No cable is connected to this interface.
And i launch the instance the following way
virt-install --name probe9 --ram 4096 --vcpus=4 --check-cpu
--os-type=linux --import --disk
/data/KVM/Probe2-cloud3.qcow2,format=qcow2 --network network=ext
--network network=private --graphics vnc,listen=0.0.0.0 --noautoconsole
--disk vol=default/configuration2.iso,bus=virtio
I did a tcpdump of vnet1 and it look like
05:14:27.843753 IP (tos 0x10, ttl 128, id 0, offset 0, flags [none],
proto UDP (17), length 332)
0.0.0.0.bootpc > 255.255.255.255.bootps: [udp sum ok] BOOTP/DHCP,
Request from 52:54:00:3f:08:13 (oui Unknown), length 304, xid
0x4726ff0c, secs 7, Flags [none] (0x0000)
Client-Ethernet-Address 52:54:00:3f:08:13 (oui Unknown)
Vendor-rfc1048 Extensions
Magic Cookie 0x63825363
DHCP-Message Option 53, length 1: Discover
Parameter-Request Option 55, length 13:
Subnet-Mask, BR, Time-Zone, Classless-Static-Route
Domain-Name, Domain-Name-Server, Hostname, YD
YS, NTP, MTU, Option 119
Default-Gateway
Vendor-Class Option 60, length 43: "anaconda-Linux
2.6.32-431.el6.x86_64 x86_64"
05:14:27.931015 IP6 (hlim 1, next-header Options (0) payload length: 36)
fe80::5054:ff:fe3f:813 > ff02::16: HBH (rtalert: 0x0000) (padn)[icmp6
sum ok] ICMP6, multicast listener report v2, length 28, 1 group
record(s) [gaddr ff02::1:ff3f:813 to_ex { }]
05:14:30.963975 IP6 (hlim 255, next-header ICMPv6 (58) payload length:
16) fe80::5054:ff:fe3f:813 > ff02::2: [icmp6 sum ok] ICMP6, router
solicitation, length 16
source link-address option (1), length 8 (1):
52:54:00:3f:08:13
0x0000: 5254 003f 0813
05:14:40.850652 IP (tos 0x10, ttl 128, id 0, offset 0, flags [none],
proto UDP (17), length 332)
0.0.0.0.bootpc > 255.255.255.255.bootps: [udp sum ok] BOOTP/DHCP,
Request from 52:54:00:3f:08:13 (oui Unknown), length 304, xid
0x4726ff0c, secs 20, Flags [none] (0x0000)
Client-Ethernet-Address 52:54:00:3f:08:13 (oui Unknown)
Vendor-rfc1048 Extensions
Magic Cookie 0x63825363
DHCP-Message Option 53, length 1: Discover
Parameter-Request Option 55, length 13:
Subnet-Mask, BR, Time-Zone, Classless-Static-Route
Domain-Name, Domain-Name-Server, Hostname, YD
YS, NTP, MTU, Option 119
Default-Gateway
Vendor-Class Option 60, length 43: "anaconda-Linux
2.6.32-431.el6.x86_64 x86_64"
05:14:54.851632 IP (tos 0x10, ttl 128, id 0, offset 0, flags [none],
proto UDP (17), length 332)
0.0.0.0.bootpc > 255.255.255.255.bootps: [udp sum ok] BOOTP/DHCP,
Request from 52:54:00:3f:08:13 (oui Unknown), length 304, xid
0x4726ff0c, secs 34, Flags [none] (0x0000)
Client-Ethernet-Address 52:54:00:3f:08:13 (oui Unknown)
Vendor-rfc1048 Extensions
Magic Cookie 0x63825363
DHCP-Message Option 53, length 1: Discover
Parameter-Request Option 55, length 13:
Subnet-Mask, BR, Time-Zone, Classless-Static-Route
Domain-Name, Domain-Name-Server, Hostname, YD
YS, NTP, MTU, Option 119
Default-Gateway
Vendor-Class Option 60
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