I created vhost1 and vhost2 by using virt-manager which run on a Ubuntu server 22.04
The Host and VMS connected via a bridge network. So here's the thing:
The ping working fine between Host and VMS, but it doesn't work between VMS(vhost1 and vhost2)
Network configuration of Host:
br0: 192.168.110.161/24
/etc/netplan/netcfg.yaml
network:
version: 2
renderer: networkd
ethernets:
enp24s0f1:
dhcp4: false
dhcp6: false
bridges:
br0:
macaddress: aa:bb:cc:11:22:33
dhcp4: false
dhcp6: false
addresses:
- 192.168.110.161/24
routes:
- to: default
via: 192.168.110.1
metric: 100
on-link: true
nameservers:
addresses:
- 223.6.6.6
interfaces:
- enp24s0f1
parameters:
stp: true
forward-delay: 4
bridge:
(base) root@qlsj:/etc/netplan# brctl show
bridge name bridge id STP enabled interfaces
br0 8000.aabbcc112233 yes enp24s0f1
vnet6
vnet7
docker0 8000.0242b2287cce no veth1beee8b
veth6554059
virbr0 8000.525400dcd61a no vnet2
vnet4
(base) root@qlsj:/etc/netplan#
kvm vhost1 nic:
<interface type="bridge">
<mac address="52:54:00:19:ab:92"/>
<source bridge="br0"/>
<target dev="vnet6"/>
<model type="virtio"/>
<alias name="net1"/>
<address type="pci" domain="0x0000" bus="0x07" slot="0x00" function="0x0"/>
</interface>
kvm vhost2 nic:
<interface type="bridge">
<mac address="52:54:00:81:59:a2"/>
<source network="host-bridge" portid="72753e9d-2408-4858-b8b7-806b3666afa0" bridge="br0"/>
<target dev="vnet7"/>
<model type="virtio"/>
<alias name="net1"/>
<address type="pci" domain="0x0000" bus="0x09" slot="0x00" function="0x0"/>
</interface>
Network configuration of vhost1:
enp9s0: 192.168.110.204/24
network:
ethernets:
# interface name
enp9s0:
dhcp4: false
addresses: [192.168.110.204/24]
routes:
- to: default
via: 192.168.110.1
metric: 99
nameservers:
addresses: [223.6.6.6,223.5.5.5]
dhcp6: false
version: 2
Host ping vhost1:
(base) root@qlsj:~# ping 192.168.110.204
PING 192.168.110.204 (192.168.110.204) 56(84) bytes of data.
64 bytes from 192.168.110.204: icmp_seq=1 ttl=64 time=0.398 ms
64 bytes from 192.168.110.204: icmp_seq=2 ttl=64 time=0.280 ms
64 bytes from 192.168.110.204: icmp_seq=3 ttl=64 time=0.253 ms
^C
--- 192.168.110.204 ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2025ms
rtt min/avg/max/mdev = 0.253/0.310/0.398/0.062 ms
(base) root@qlsj:~#
Network configuration of vhost2:
enp7s0: 192.168.110.169/24
# This is the network config written by 'subiquity'
network:
ethernets:
# interface name
enp7s0:
dhcp4: false
addresses: [192.168.110.169/24]
routes:
- to: default
via: 192.168.110.1
metric: 101
nameservers:
# name server to bind
addresses: [223.6.6.6,223.5.5.5]
dhcp6: false
version: 2
Host ping vhost2:
(base) root@qlsj:~#
(base) root@qlsj:~# ping 192.168.110.169
PING 192.168.110.169 (192.168.110.169) 56(84) bytes of data.
64 bytes from 192.168.110.169: icmp_seq=1 ttl=64 time=0.392 ms
64 bytes from 192.168.110.169: icmp_seq=2 ttl=64 time=0.244 ms
^C
--- 192.168.110.169 ping statistics ---
2 packets transmitted, 2 received, 0% packet loss, time 1007ms
rtt min/avg/max/mdev = 0.244/0.318/0.392/0.074 ms
(base) root@qlsj:~#
vhost1 ping vhost2:
qlsj@vhost1:~$ ping 192.168.110.169
PING 192.168.110.204 (192.168.110.204) 56(84) bytes of data.
From 192.168.110.161 icmp_seq=1 Packet filtered
From 192.168.110.161 icmp_seq=2 Packet filtered
From 192.168.110.161 icmp_seq=3 Packet filtered
^C
--- 192.168.110.204 ping statistics ---
3 packets transmitted, 0 received, +3 errors, 100% packet loss, time 2034ms
qlsj@vhost1:~$
route of Host:
(base) root@qlsj:~# route
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
default 192.168.110.1 0.0.0.0 UG 100 0 0 br0
172.17.0.0 0.0.0.0 255.255.0.0 U 0 0 0 docker0
192.168.110.0 0.0.0.0 255.255.255.0 U 0 0 0 br0
192.168.122.0 0.0.0.0 255.255.255.0 U 0 0 0 virbr0
(base) root@qlsj:~#
Both Host and vms configuate withnet.ipv4.ip_forward = 1, policy of iptables FORWARD chain is ACCEPT
I have no idea what to do. I tried lots of things, It doesn't work.
Please forgive my grammatical mistakes, I am not good at English.
If anything I can provide, Please comment below.
