GitHub user Overmorrow1501 closed a discussion: SingleHost CS - SystemVMS
cannot reach default gw
##### ISSUE TYPE
<!-- Pick one below and delete the rest -->
* Other
##### COMPONENT NAME
<!--
-->
~~~
Network
~~~
##### CLOUDSTACK VERSION
<!--
-->
~~~
4.19.1.1
~~~
##### CLOUDSTACK CONFIGURATION
```
Zone:
Name - Zone1
Public DNS 1 - 8.8.8.8/8.8.4.4
Internal DNS1 - 8.8.8.8/8.8.4.4
Hypervisor - KVM
Public traffic net configuration:
Gateway - 192.168.1.1
Netmask - 255.255.255.0
VLAN/VNI - (vlan://untagged)
Start IP - 192.168.1.150
End IP - 192.168.1.160
Management net configuration:
Gateway - 192.168.1.1
Start/end reserved system IPs - 192.168.1.161 - 192.168.1.170
primary storage:
Name - Primary1
Scope - zone-wide
Protocol - NFS
Server - 192.168.1.99
Path - /export/primary
secondary storage:
Provider - NFS
Name - Secondary1
Server - 192.168.1.99
Path - /export/secondary
```
##### OS / ENVIRONMENT
```
PRETTY_NAME="Ubuntu 24.04 LTS"
Single NIC (eth0)
# ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group
default qlen 1000
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
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast master
cloudbr0 state UP group default qlen 1000
link/ether bc:24:11:cd:27:e5 brd ff:ff:ff:ff:ff:ff
altname enp0s18
altname ens18
3: cloudbr0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP
group default qlen 1000
link/ether 5a:7a:5e:12:8c:ac brd ff:ff:ff:ff:ff:ff
inet 192.168.1.99/24 brd 192.168.1.255 scope global cloudbr0
valid_lft forever preferred_lft forever
root@ubuntu-lvm:~# ip route
default via 192.168.1.1 dev cloudbr0 proto static
root@ubuntu-lvm:~# systemctl status cloudstack-*
● cloudstack-agent.service - CloudStack Agent
Loaded: loaded (/usr/lib/systemd/system/cloudstack-agent.service; enabled;
preset: enabl>
Active: active (running) since Fri 2024-08-30 15:44:21 CEST; 46min ago
Docs: http://www.cloudstack.org/
Main PID: 15785 (java)
Tasks: 55 (limit: 11620)
Memory: 545.1M (peak: 567.9M)
CPU: 27.759s
CGroup: /system.slice/cloudstack-agent.service
└─15785 /usr/bin/java
-Djava.io.tmpdir=/usr/share/cloudstack-agent/tmp -Xms256m >
Aug 30 16:27:09 ubuntu-lvm java[15785]: INFO
[kvm.storage.LibvirtStorageAdaptor] (agentReque>
Aug 30 16:27:09 ubuntu-lvm java[15785]: INFO
[kvm.storage.LibvirtStorageAdaptor] (agentReque>
Aug 30 16:27:14 ubuntu-lvm java[15785]: INFO
[kvm.storage.LibvirtStorageAdaptor] (agentReque>
Aug 30 16:27:14 ubuntu-lvm java[15785]: INFO
[kvm.storage.LibvirtStorageAdaptor] (agentReque>
Aug 30 16:28:14 ubuntu-lvm java[15785]: INFO
[kvm.storage.LibvirtStorageAdaptor] (agentReque>
Aug 30 16:28:14 ubuntu-lvm java[15785]: INFO
[kvm.storage.LibvirtStorageAdaptor] (agentReque>
Aug 30 16:29:14 ubuntu-lvm java[15785]: INFO
[kvm.storage.LibvirtStorageAdaptor] (agentReque>
Aug 30 16:29:14 ubuntu-lvm java[15785]: INFO
[kvm.storage.LibvirtStorageAdaptor] (agentReque>
Aug 30 16:30:14 ubuntu-lvm java[15785]: INFO
[kvm.storage.LibvirtStorageAdaptor] (agentReque>
Aug 30 16:30:14 ubuntu-lvm java[15785]: INFO
[kvm.storage.LibvirtStorageAdaptor] (agentReque>
● cloudstack-management.service - CloudStack Management Server
Loaded: loaded (/usr/lib/systemd/system/cloudstack-management.service;
enabled; preset: >
Active: active (running) since Fri 2024-08-30 15:25:23 CEST; 1h 5min ago
Main PID: 1801 (java)
Tasks: 233 (limit: 11620)
Memory: 1.2G (peak: 1.3G)
```
##### CLOUDSTACK OS CONFIGURATION
```yaml
/etc/netplan/99-cloudstack-net.yaml
network:
version: 2
renderer: networkd
ethernets:
eth0:
dhcp4: false
dhcp6: false
optional: true
match:
macaddress: bc:24:11:cd:27:e5
bridges:
cloudbr0:
addresses: [192.168.1.99/24]
routes:
- to: default
via: 192.168.1.1
nameservers:
addresses: [1.1.1.1, 8.8.8.8]
interfaces: [eth0]
dhcp4: false
dhcp6: false
parameters:
stp: false
forward-delay: 0
```
##### SUMMARY
Let me begin by saying that this is one of my first approach to Cloudstack.
I've followed the following guides to bring up a (all-in-one) single node CS
infrastructure:
-https://docs.cloudstack.apache.org/en/latest/quickinstallationguide/qig.html
-https://rohityadav.cloud/blog/cloudstack-kvm/
After the quick installation finishes SystemVMs start but these cannot reach
anything else but 192.168.1.99 (which is the KVM Host).
##### STEPS TO REPRODUCE
Inside the SSVM I see the following:
```
root@s-2-VM:~# ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group
default qlen 1000
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
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP
group default qlen 1000
link/ether 0e:00:a9:fe:cf:dc brd ff:ff:ff:ff:ff:ff
altname enp0s3
altname ens3
inet 169.254.207.220/16 brd 169.254.255.255 scope global eth0
valid_lft forever preferred_lft forever
3: eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP
group default qlen 1000
link/ether 1e:00:0a:00:00:08 brd ff:ff:ff:ff:ff:ff
altname enp0s4
altname ens4
inet 192.168.1.168/24 brd 192.168.1.255 scope global eth1
valid_lft forever preferred_lft forever
4: eth2: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP
group default qlen 1000
link/ether 1e:00:14:00:00:0c brd ff:ff:ff:ff:ff:ff
altname enp0s5
altname ens5
inet 192.168.1.151/24 brd 192.168.1.255 scope global eth2
valid_lft forever preferred_lft forever
root@s-2-VM:~# ip route
default via 192.168.1.1 dev eth2
8.8.4.4 via 192.168.1.1 dev eth1
8.8.8.8 via 192.168.1.1 dev eth1
169.254.0.0/16 dev eth0 proto kernel scope link src 169.254.207.220
192.168.1.0/24 dev eth1 proto kernel scope link src 192.168.1.168
192.168.1.0/24 dev eth2 proto kernel scope link src 192.168.1.151
root@s-2-VM:~# ping -c 4 -T30 192.168.1.99
PING 192.168.1.99 (192.168.1.99): 56 data bytes
64 bytes from 192.168.1.99: icmp_seq=0 ttl=64 time=0.168 ms
64 bytes from 192.168.1.99: icmp_seq=1 ttl=64 time=0.443 ms
64 bytes from 192.168.1.99: icmp_seq=2 ttl=64 time=0.510 ms
64 bytes from 192.168.1.99: icmp_seq=3 ttl=64 time=0.481 ms
--- 192.168.1.99 ping statistics ---
4 packets transmitted, 4 packets received, 0% packet loss
round-trip min/avg/max/stddev = 0.168/0.400/0.510/0.136 ms
root@s-2-VM:~# ping -c 4 -T30 192.168.1.1
PING 192.168.1.1 (192.168.1.1): 56 data bytes
--- 192.168.1.1 ping statistics ---
4 packets transmitted, 0 packets received, 100% packet loss
```
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##### EXPECTED RESULTS
<!-- What did you expect to happen when running the steps above? -->
~~~
VMs to reach external network
~~~
GitHub link: https://github.com/apache/cloudstack/discussions/9908
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