Related Documentation
- M, MX, PTX, T Series
- Management Ethernet Interface Overview
- Configuring a Consistent Management IP Address
- PTX Series
- Configuring MAC Filtering on PTX Series Packet Transport Switches
- Additional Information
- Junos® OS Ethernet Interfaces
Configuring the MAC Address on the Management Ethernet Interface
By default, the router’s management Ethernet interface uses as its MAC address the MAC address that is burned into the Ethernet card.
 | Note: For M Series, MX Series, and most T Series routers, the management Ethernet interface is fxp0. For TX Matrix Plus routers and T1600 routers configured in a routing matrix, the management Ethernet interface is em0. |
| Note: Automated scripts that you have developed for standalone T1600 routers (T1600 routers that are not in a routing matrix) might contain references to the fxp0 management Ethernet interface. Before reusing the scripts on T1600 routers in a routing matrix, edit the command lines that reference the fxp0 management Ethernet interface so that the commands reference the em0 management Ethernet interface instead. |
To display the MAC address used by the router’s management Ethernet interface, enter the show interface fxp0 or show interface em0 operational mode command.
To change the management Ethernet interface’s MAC address, include the mac statement at the [edit interfaces fxp0] or [edit interfaces em0] hierarchy level:
Specify the MAC address as six hexadecimal bytes in one of the following formats: nnnn.nnnn.nnnn (for example, 0011.2233.4455) or nn:nn:nn:nn:nn:nn (for example, 00:11:22:33:44:55).
| Note: If you integrate a standalone T640 router into a routing matrix, the PIC MAC addresses for the integrated T640 router are derived from a pool of MAC addresses maintained by the TX Matrix router. For each MAC address you specify in the configuration of a formerly standalone T640 router, you must specify the same MAC address in the configuration of the TX Matrix router. Similarly, if you integrate a standalone T1600 router into a routing matrix, the PIC MAC addresses for the integrated T1600 router are derived from a pool of MAC addresses maintained by the TX Matrix Plus router. For each MAC address you specify in the configuration of a formerly standalone T1600 router, you must specify the same MAC address in the configuration of the TX Matrix Plus router. |
Related Documentation
- M, MX, PTX, T Series
- Management Ethernet Interface Overview
- Configuring a Consistent Management IP Address
- PTX Series
- Configuring MAC Filtering on PTX Series Packet Transport Switches
- Additional Information
- Junos® OS Ethernet Interfaces
Published: 2012-12-11
Related Documentation
- M, MX, PTX, T Series
- Management Ethernet Interface Overview
- Configuring a Consistent Management IP Address
- PTX Series
- Configuring MAC Filtering on PTX Series Packet Transport Switches
- Additional Information
- Junos® OS Ethernet Interfaces
