[ovirt-users] creating a vlan-tagged network

Sun Jan 1 08:50:05 UTC 2017

I currently only have two IPs assigned to me...I can try and take another,
but that may not route out of the rack.  I've got the VM on one of the IPs
and the host on the other currently.

The switch is a "web-managed" basic 8-port switch (thrown in for testing
while the "real" switch is in transit).  It has the 3 ports the hosts are
plugged in configured with vlan 1 untagged, set as PVID, and vlan 2
tagged.  Another port on the switch is untagged on vlan 1 connected to the
router for the ovirtmgmt network (protected by a VPN, but not "burning"
public IPs for mgmt purposes), another couple ports are untagged on vlan
2.  One of those ports goes out of the rack, another goes to the router's
internet port.  Router gets to the internet just fine.

VM:
kusznir at FusionPBX:~$ ip address
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group
default
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host
       valid_lft forever preferred_lft forever
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state
UP group default qlen 1000
    link/ether 00:1a:4a:16:01:51 brd ff:ff:ff:ff:ff:ff
    inet 162.248.147.31/24 brd 162.248.147.255 scope global eth0
       valid_lft forever preferred_lft forever
    inet6 fe80::21a:4aff:fe16:151/64 scope link
       valid_lft forever preferred_lft forever
kusznir at FusionPBX:~$ ip route
default via 162.248.147.1 dev eth0
162.248.147.0/24 dev eth0  proto kernel  scope link  src 162.248.147.31
kusznir at FusionPBX:~$

Host:
[root at ovirt3 ~]# ip address
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host
       valid_lft forever preferred_lft forever
2: em1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq master
ovirtmgmt state UP qlen 1000
    link/ether 00:21:9b:98:2f:44 brd ff:ff:ff:ff:ff:ff
3: em2: <BROADCAST,MULTICAST> mtu 1500 qdisc mq state DOWN qlen 1000
    link/ether 00:21:9b:98:2f:46 brd ff:ff:ff:ff:ff:ff
4: em3: <BROADCAST,MULTICAST> mtu 1500 qdisc mq state DOWN qlen 1000
    link/ether 00:21:9b:98:2f:48 brd ff:ff:ff:ff:ff:ff
5: em4: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc mq state DOWN
qlen 1000
    link/ether 00:21:9b:98:2f:4a brd ff:ff:ff:ff:ff:ff
6: ;vdsmdummy;: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN
    link/ether 8e:1b:51:60:87:55 brd ff:ff:ff:ff:ff:ff
7: ovirtmgmt: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue
state UP
    link/ether 00:21:9b:98:2f:44 brd ff:ff:ff:ff:ff:ff
    inet 192.168.8.13/24 brd 192.168.8.255 scope global dynamic ovirtmgmt
       valid_lft 54830sec preferred_lft 54830sec
11: em1.2 at em1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue
master Public_Cable state UP
    link/ether 00:21:9b:98:2f:44 brd ff:ff:ff:ff:ff:ff
12: Public_Cable: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue
state UP
    link/ether 00:21:9b:98:2f:44 brd ff:ff:ff:ff:ff:ff
    inet 162.248.147.33/24 brd 162.248.147.255 scope global Public_Cable
       valid_lft forever preferred_lft forever
14: vnet0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast
master ovirtmgmt state UNKNOWN qlen 500
    link/ether fe:1a:4a:16:01:54 brd ff:ff:ff:ff:ff:ff
    inet6 fe80::fc1a:4aff:fe16:154/64 scope link
       valid_lft forever preferred_lft forever
15: vnet1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast
master ovirtmgmt state UNKNOWN qlen 500
    link/ether fe:1a:4a:16:01:52 brd ff:ff:ff:ff:ff:ff
    inet6 fe80::fc1a:4aff:fe16:152/64 scope link
       valid_lft forever preferred_lft forever
16: vnet2: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast
master ovirtmgmt state UNKNOWN qlen 500
    link/ether fe:1a:4a:16:01:53 brd ff:ff:ff:ff:ff:ff
    inet6 fe80::fc1a:4aff:fe16:153/64 scope link
       valid_lft forever preferred_lft forever
17: vnet3: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast
master Public_Cable state UNKNOWN qlen 500
    link/ether fe:1a:4a:16:01:51 brd ff:ff:ff:ff:ff:ff
    inet6 fe80::fc1a:4aff:fe16:151/64 scope link
       valid_lft forever preferred_lft forever
[root at ovirt3 ~]# ip route
default via 192.168.8.1 dev ovirtmgmt
162.248.147.0/24 dev Public_Cable  proto kernel  scope link  src
162.248.147.33
169.254.0.0/16 dev ovirtmgmt  scope link  metric 1007
169.254.0.0/16 dev Public_Cable  scope link  metric 1012
192.168.8.0/24 dev ovirtmgmt  proto kernel  scope link  src 192.168.8.13
[root at ovirt3 ~]# brctl show
bridge name bridge id STP enabled interfaces
;vdsmdummy; 8000.000000000000 no
Public_Cable 8000.00219b982f44 no em1.2
vnet3
ovirtmgmt 8000.00219b982f44 no em1
vnet0
vnet1
vnet2
[root at ovirt3 ~]#

I did see that the cluster settings has a switch type setting; currently at
the default "LEGACY", it also has "OVS" as an option.  Not sure if that
matters or not.

I configured another VM on the network, and static'ed an IP, and could ping
the other VM as well as the host, but not the internet.  The host can still
ping the internet.

--Jim
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