topic Re: HPE VM Essentials Network settings in HPE Morpheus VM Essentials Software

HPE VM Essentials Network settings

shou1 — Wed, 03 Dec 2025 16:33:24 GMT

I assigned a port created for Compute to a virtual machine in the HPE VM Essentials network settings, but communication is only possible between the virtual machine and the physical host machine. I want to connect to the same network segment, but how can I do this?
The bridge port is created using cmpt, and the physical port is ens256.
Assign an IP address to the bridge port.

Re: HPE VM Essentials Network settings

dya — Tue, 02 Dec 2025 11:48:31 GMT

I have reviewed each screenshot.
Connecting the ens256 to an external switch should work if it's untagged.
I thought it might not work if it's tagged VLAN.

It doesn't seem directly related, but I was a bit concerned because I had never assigned an IP address to “cmpt” before.

Re: HPE VM Essentials Network settings

shou1 — Tue, 02 Dec 2025 23:32:35 GMT

Please tell me how to check whether the VLAN is tagged or untagged. Also, is the IP address assigned to ens256?

Re: HPE VM Essentials Network settings

dya — Wed, 03 Dec 2025 09:16:42 GMT

Whether the desired communication is untagged or tagged between the host and external switch depends on the configuration, so we recommend confirming this with your network administrator.

If communication must be tagged, you will likely need to create a port group in VM Essentials and configure the “VLAN ID”.
Please refer to the following:
https://support.hpe.com/hpesc/public/docDisplay?docId=sd00007027en_us&page=GUID-61426C77-F236-4AFF-A1E3-92893A1FAA9F.html

We did not assign an IP address to ens256, which corresponds to the "cmpt" uplink.
This was because there was no need to assign an IP address.

Re: HPE VM Essentials Network settings

shou1 — Thu, 04 Dec 2025 01:29:21 GMT

This will result in an untagged configuration.

I think the configuration is the same as the management port, but the Compute port does not allow virtual machines to communicate externally.
If you use the management port, virtual machines can communicate externally.

Re: HPE VM Essentials Network settings

dya — Fri, 05 Dec 2025 22:53:02 GMT

Here's what I would do:

1. Run the following commands on the host:
# tcpdump -i cmpt -ne arp
# tcpdump -i ens256 -ne arp

2. On the terminal where ARPs should be flowing to the host's ens256, execute a ping to a non-existent address:
# ping xxx.xxx.xxx.xxx

3. Check the results of command “1”.

★ The expected result for step “3” is that ARPs without a “vlan id” are displayed.
Any other results would require case-by-case investigation and response.

Translated with DeepL.com (free version)

＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝
（日本語）

私ならどうするかというと、

１．ホストで以下のようなコマンド実行する
# tcpdump -i cmpt -ne arp
# tcpdump -i ens256 -ne arp

２．ホストのens256 にARPが流れてくるはずの端末で存在しないアドレス宛のpingを実行する
# ping xxx.xxx.xxx.xxx

３．「１」のコマンド結果を確認する

★「３」の確認結果として、"vlan id"がついていないarpが表示されることが想定結果です。
それ以外はケースバイケースで調査・対応が必要かと思います。