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---
lastproofread: '2026-03-05'
---
(pseudo-ethernet-interface)=
# MACVLAN (pseudo-Ethernet)
MACVLAN, or pseudo-Ethernet interfaces, operate as logical subinterfaces of
standard Ethernet interfaces. Each subinterface has a unique MAC address but
shares a single physical Ethernet port.
That allows the user to send packets from different source IPv4 or IPv6 addresses
using a different MAC address.
Pseudo-Ethernet interfaces behave like physical Ethernet interfaces. They
support IPv4 and IPv6 addressing, can obtain IP addresses through DHCP or
DHCPv6, and are mapped to a physical Ethernet port. They inherit
characteristics such as speed and duplex from their parent interface and can
be referenced like standard Ethernet interfaces once created.
```{eval-rst}
Pseudo-Ethernet interfaces may not work in environments that require a
:abbr:`NIC (Network Interface Card)` to have only one MAC address.
This includes:
* VMware machines with default settings.
* Network switches that permit only a single MAC address.
* xDSL modems that learn the NIC's MAC address.
```
## Configuration
### Common interface configuration
```{cmdincludemd} /_include/interface-common-with-dhcp.txt
:var0: pseudo-ethernet
:var1: peth0
```
### MACVLAN (pseudo-Ethernet) options
```{cfgcmd} set interfaces pseudo-ethernet \<interface\> source-interface \<ethX\>
Assign a physical Ethernet interface to the specified pseudo-Ethernet interface.
```
### VLAN
```{cmdincludemd} /_include/interface-vlan-8021q.txt
:var0: pseudo-ethernet
:var1: peth0
```
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