GitHub user dominar250 closed a discussion: packet loss from KVM to SSVM public
and private ip address
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##### ISSUE TYPE
<!-- Pick one below and delete the rest -->
* Other
##### COMPONENT NAME
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Categorize the issue, e.g. API, VR, VPN, UI, etc.
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##### CLOUDSTACK VERSION
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CloudStack 4.19.0.1
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##### CONFIGURATION
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, advanced networking with 1 physical network
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##### OS / ENVIRONMENT
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ubuntu server 22.04
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##### SUMMARY
<!-- Explain the problem/feature briefly -->
I'm using nested environment over vmware. promiscuous mode and MAC address
change ,Forged Transmit are enabled in port group level. SSVM and console proxy
agents are up.I'm having issue with packet loss from kvm machine to SSVM
/Console proxy vm both private and public ip address. also check.sh scripts
works occasionally.
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root@cloudstack-kvm:~# bridge link show
2: ens192: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 master cloudbr0 state
forwarding priority 32 cost 2
5: vnet0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 master cloud0 state
forwarding priority 32 cost 100
6: vnet1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 master cloudbr0 state
forwarding priority 32 cost 100
7: vnet2: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 master cloudbr0 state
forwarding priority 32 cost 100
8: vnet3: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 master cloud0 state
forwarding priority 32 cost 100
9: vnet4: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 master cloudbr0 state
forwarding priority 32 cost 100
10: vnet5: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 master cloudbr0 state
forwarding priority 32 cost 100
====================================================================================
root@cloudstack-kvm:~# ip addr show cloudbr0
3: cloudbr0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP
group default qlen 1000
link/ether 00:50:56:b4:a6:ca brd ff:ff:ff:ff:ff:ff
inet 10.158.65.11/25 brd 10.158.65.127 scope global cloudbr0
valid_lft forever preferred_lft forever
inet6 fe80::250:56ff:feb4:a6ca/64 scope link
valid_lft forever preferred_lft forever
========================================
root@cloudstack-kvm:~# ip addr show ens192
2: ens192: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq master cloudbr0
state UP group default qlen 1000
link/ether 00:50:56:b4:a6:ca brd ff:ff:ff:ff:ff:ff
altname enp11s0
root@cloudstack-kvm:~#
~~~
##### STEPS TO REPRODUCE
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~~~
root@cloudstack-kvm:~# ip addr show cloudbr0
3: cloudbr0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP
group default qlen 1000
link/ether 00:50:56:b4:a6:ca brd ff:ff:ff:ff:ff:ff
inet 10.158.65.11/25 brd 10.158.65.127 scope global cloudbr0
valid_lft forever preferred_lft forever
inet6 fe80::250:56ff:feb4:a6ca/64 scope link
valid_lft forever preferred_lft forever
========================================
root@cloudstack-kvm:~# ip addr show ens192
2: ens192: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq master cloudbr0
state UP group default qlen 1000
link/ether 00:50:56:b4:a6:ca brd ff:ff:ff:ff:ff:ff
altname enp11s0
root@cloudstack-kvm:~#
~~~
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##### EXPECTED RESULTS
<!-- What did you expect to happen when running the steps above? -->
ping should be working fine on both private and public ips.
##### ACTUAL RESULTS
<!-- What actually happened? -->
<!-- Paste verbatim command output between quotes below -->
~~~
root@cloudstack-kvm:~# ping -O 10.158.65.25
PING 10.158.65.25 (10.158.65.25) 56(84) bytes of data.
no answer yet for icmp_seq=1
no answer yet for icmp_seq=2
no answer yet for icmp_seq=3
no answer yet for icmp_seq=4
no answer yet for icmp_seq=5
no answer yet for icmp_seq=6
no answer yet for icmp_seq=7
64 bytes from 10.158.65.25: icmp_seq=8 ttl=64 time=0.284 ms
64 bytes from 10.158.65.25: icmp_seq=9 ttl=64 time=0.285 ms
64 bytes from 10.158.65.25: icmp_seq=10 ttl=64 time=0.250 ms
64 bytes from 10.158.65.25: icmp_seq=11 ttl=64 time=0.203 ms
64 bytes from 10.158.65.25: icmp_seq=12 ttl=64 time=0.238 ms
64 bytes from 10.158.65.25: icmp_seq=13 ttl=64 time=0.162 ms
64 bytes from 10.158.65.25: icmp_seq=14 ttl=64 time=0.219 ms
64 bytes from 10.158.65.25: icmp_seq=15 ttl=64 time=0.189 ms
64 bytes from 10.158.65.25: icmp_seq=16 ttl=64 time=0.280 ms
64 bytes from 10.158.65.25: icmp_seq=17 ttl=64 time=0.180 ms
64 bytes from 10.158.65.25: icmp_seq=18 ttl=64 time=0.177 ms
64 bytes from 10.158.65.25: icmp_seq=19 ttl=64 time=0.218 ms
64 bytes from 10.158.65.25: icmp_seq=20 ttl=64 time=0.262 ms
64 bytes from 10.158.65.25: icmp_seq=21 ttl=64 time=0.229 ms
64 bytes from 10.158.65.25: icmp_seq=22 ttl=64 time=0.319 ms
64 bytes from 10.158.65.25: icmp_seq=23 ttl=64 time=0.305 ms
~~~
GitHub link: https://github.com/apache/cloudstack/discussions/9254
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