MAC resolution issue [Two ethernet ports on same subnet]

[Mulyadi Santosa]

On Thu, Mar 9, 2023 at 4:07 PM Hitesh Patidar <hitesh08patidar at gmail.com>
wrote:

> Hi,
>
> I am using a system with two onboard ethernet ports with CentOS 7. When I
> connect both these ports to the DHCP server setup on another node, the arp
> entry of DHCP server node displays two different IP addresses that resolve
> to same MAC address. The ARP reply from the system is providing same MAC
> for ARP requests received for both the ports.
>
> My requirement is to have mapping of 2 distinct IPs to 2 MACs.
>
> Instead of CentOS 7, if I use Ubuntu 22 Desktop on my system, the 2 IPs
> are mapped to 2 different MACs.
>
> Kindly advice on how to solve this issue.
>
> Thanks & Regards,
> Hitesh Patidar
> _______________________________________________
> Kernelnewbies mailing list
> Kernelnewbies at kernelnewbies.org
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>

try to connect those two nic ports to two different VLAN.

And since this is kernelnewbies mailing list, try to look for more
approriate forum to ask this
-- 
regards,

Mulyadi Santosa
Freelance Linux trainer and consultant

blog: the-hydra.blogspot.com
training: mulyaditraining.blogspot.com

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