Hi all,
I am new to this list and new to cloudstack, so apologies if this is an
obvious problem
I am trying to learn CloudStack and have setup a simple advanced
networking zone, 1 pod, 1 cluster, 2 hosts connected via the same
layer2 cisco switch, 1 nic in each host (Ubuntu, KVM)
If I setup a guest isolated lan and add a vm (setting up egress,
firewall, port fowarding), the vm can get out onto the public/internet
via the virtual router that gets automatically setup for my guest
network.
However if I move the vm to another host, it's internet stops working.
If I then move the virtual router to the same host it starts again.
So I guess it's something to do with isolated vlan tagging between
hosts via the switch?
I am not sure whether it's the switch, whether I am trying to do this
via one nic or settings I have missed in cloudstack.
my netplan host file(s) contain the same type of config; one on ip .25
one on ip .23 same subnet
ethernets:
ens4f0np0:
dhcp4: false
dhcp6: false
mtu: 1550
bridges:
cloudbr0:
interfaces: [ens4f0np0]
addresses:
- 10.250.0.25/22
gateway4: 10.250.0.1
nameservers:
addresses:
- 10.58.2.140
- 10.58.2.141
mtu: 1500
parameters:
stp: true
forward-delay: 4
dhcp4: no
dhcp6: no
The isolated guest network has vlan id allocated of 603
When I move a vm from one host to another, a vlan interface appears to
be created on the new kvm host
cloudbr0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1550 qdisc noqueue
state UP group default qlen 1000
link/ether bc:97:e1:be:72:10 brd ff:ff:ff:ff:ff:ff
inet 10.250.0.25/22 brd 10.250.3.255 scope global cloudbr0
valid_lft forever preferred_lft forever
inet6 fe80::be97:e1ff:febe:7210/64 scope link
valid_lft forever preferred_lft forever
cloud0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state
UP group default qlen 1000
link/ether fe:00:a9:fe:32:cc brd ff:ff:ff:ff:ff:ff
inet 169.254.0.1/16 scope global cloud0
valid_lft forever preferred_lft forever
inet6 fe80::40c4:4eff:fe5e:dcc0/64 scope link
valid_lft forever preferred_lft forever
ens4f0np0.603@ens4f0np0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1550
qdisc noqueue master brens4f0np0-603 state UP group default qlen 1000
link/ether bc:97:e1:be:72:10 brd ff:ff:ff:ff:ff:ff
inet6 fe80::be97:e1ff:febe:7210/64 scope link
valid_lft forever preferred_lft forever
brens4f0np0-603: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1550 qdisc
noqueue state UP group default qlen 1000
link/ether bc:97:e1:be:72:10 brd ff:ff:ff:ff:ff:ff
inet6 fe80::e0d0:90ff:fe6a:71a7/64 scope link
valid_lft forever preferred_lft forever
As I say the public/internet stops working
Not sure whether it's a switch port config, Linux nic config, or
something in Cloudstack
Very grateful of any pointers as to where to start looking to resolve
this issue
Thanks
Brian
Brian Fitzpatrick
