This example shows how to configure the FastEthernet port on an 1841 router as a trunking interface.
The Cisco 1841 router has two onboard FastEthernet autosensing interfaces that support 10- or 100-Mbps connections.
The sub interface becomes fa 0/x..
For instance, fa 0/1.2 represents the sub-interface for VLAN 2.
In addition, it is necessary to define the encapsulation as encapsulation dot1q vlan-id.
| Hostname(config)#interface FastEthernet0/1 Hostname(config-if)#no ip address |
| Hostname(config-if)#no shutdown |
| Hostname(config)#interface FastEthernet0/1.1 Hostname(config-if)#encapsulation dot1Q 1 native Hostname(config-if)#ip address x.x.y.y < subnet mask > |
| interface FastEthernet0/1.2 Hostname(config-if)#encapsulation dot1Q 2 Hostname(config-if)#ip address x.x.y.y < subnet mask > |
Note:
There is no way to setup the 1841 router to negotiate the trunk.
| Cisco Subnet |
About Brad Reese on Cisco
Brad Reese is research manager at BradReese.Com, advancing the careers of 1 million certified individuals in the growing Cisco Career Certification Program.
Contact him.
Brad's blogroll
Brad Reese on Cisco archive.
Cisco Subnet
|
|
