Hi Vivek,

In order of probably cause: also check in that:

Here are some command examples that may not match the output of your virtual lab:

controller:$ ip route | grep default
default via 10.10.10.1 dev enp2s1 onlink 

controller:$ ping -c1 10.10.10.1
<snip>
1 packets transmitted, 1 received, 0% packet loss, time 0ms

host:$ ip route | grep default
default via xxx.xxx.xxx.xxx dev eth0 proto dhcp metric 100 

controller:$ HOST_DEFAULT_ROUTE=xxx.xxx.xxx.xxx
controller:$ ping -c1 $HOST_DEFAULT_ROUTE
<snip>
1 packets transmitted, 1 received, 0% packet loss, time 0ms

host:$ HOST_IF=eth0
host:$ cat /proc/sys/net/ipv4/ip_forward \
    /proc/sys/net/ipv4/conf/all/forwarding  \
    /proc/sys/net/ipv4/conf/$HOST_IF/forwarding \
    /proc/sys/net/ipv4/conf/stxbr1/forwarding
1
1
1
1

host:$ sudo iptables -nvL -t filter | grep FORWARD
Chain FORWARD (policy ACCEPT 0 packets, 0 bytes)



M



From: vivekanandan.rajendran.devops@tag.ooo <vivekanandan.rajendran.devops@tag.ooo>
Sent: 20 May 2024 8:36 AM
To: starlingx-discuss@lists.starlingx.io <starlingx-discuss@lists.starlingx.io>
Subject: Re: unable to bring up the interfaces in simplex-controller-0 in libvirt
 
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Hi All,
the below is the network setup in the hypervisor ubuntu 22.04

42: stxbr1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue
state UP group default qlen 1000
     link/ether fe:54:00:ef:65:8a brd ff:ff:ff:ff:ff:ff
     inet 10.10.10.1/24 scope global stxbr1
        valid_lft forever preferred_lft forever
     inet6 fe80::c07e:1ff:fe3a:6669/64 scope link

and below output is from the kvm simplex-controller-0

tagdevops@dal1:~/virtual-deployment/libvirt$ virsh console
simplex-controller-0
Connected to domain 'simplex-controller-0'
Escape character is ^] (Ctrl + ])

sysadmin@localhost:~$ 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
     inet6 ::1/128 scope host
        valid_lft forever preferred_lft forever
2: enp3s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel
state UP group default qlen 1000
     link/ether 52:54:00:99:d8:b8 brd ff:ff:ff:ff:ff:ff
     inet 10.10.10.2/24 scope global enp3s0
        valid_lft forever preferred_lft forever
     inet6 fe80::5054:ff:fe99:d8b8/64 scope link
        valid_lft forever preferred_lft forever
3: enp4s0: <BROADCAST,MULTICAST> mtu 1500 qdisc fq_codel state DOWN
group default qlen 1000
     link/ether 52:54:00:0e:d7:de brd ff:ff:ff:ff:ff:ff
4: enp2s1: <BROADCAST,MULTICAST> mtu 1500 qdisc fq_codel state DOWN
group default qlen 1000
     link/ether 52:54:00:ef:65:8a brd ff:ff:ff:ff:ff:ff
5: enp2s2: <BROADCAST,MULTICAST> mtu 1500 qdisc fq_codel state DOWN
group default qlen 1000
     link/ether 52:54:00:e0:36:93 brd ff:ff:ff:ff:ff:ff
sysadmin@localhost:~$ ping 8.8.8.8
PING 8.8.8.8 (8.8.8.8) 56(84) bytes of data.
^C
--- 8.8.8.8 ping statistics ---
2 packets transmitted, 0 received, 100% packet loss, time 1000ms

can you please assist with the networking of the controller.
Thanks
-Vivek


On 2024-05-19 06:02, vivekanandan.rajendran.devops@tag.ooo wrote:
> Hi,
>  I am setting up starlingx simplex install in kvm libvirt in ubuntu
> 22.04 I have setup the libvirt and did setup network script and
> setupconfiguration -c simplex -i ./starling.iso but the interfaces are
> down and not assigning IP . I manually tried adding routes as mentioned
> in the documentation . still the internet is not working. i am not able
> to ping the gateway ip from the kvm machine. In the physical machine
> there is bond0 configuration. and I am not able to setup br0 because
> its conflicting bond0. can you advise how to proceed with this.
> Thanks
> -Vivek