Router on a stick question!!!

Ola_CISCO

Hello,

I am currently working on a lab, that is a "Router on a stick set up", I am using a 2x 2950 switches and a 2520 Router to do this, in the workbook it states that the interface on the router is a fastethernet.

I am current using an ethernet interface to set up my sub commands by the only this is:

When I type:

R1(config)#Int eth0.100
R1(config)#encapsulation dot1q 100 (A marker appears beneath the "en")
R1(config)#ip address 192.168.1.1 255.255.255.0 (Then when I skip the "encap 1dotq 100", nd add the ip address)

(I the get a message that the subinterface has to be encapsulated)

can anyone tell me how to do this please.

Thanks in advance!!!!

Slowhand

Your 2520 router doesn't support 802.1q encapsulation. Have a look at Cisco's howto page:

Platforms

This feature is supported on these platforms:
•Cisco 1710 router
•Cisco 1751 router
•Cisco 2600 series
•Cisco 3600 series
•Cisco 4000-M series (Cisco 4000-M, 4500-M, 4700-M)
•Cisco 7200 series
•RSP1Cisco 7505
•RSP2Cisco 7507 and Cisco 7513
•RSP4Cisco 7505, Cisco 7507, Cisco 7513, and Cisco 7576

arsalanjawed

exactly it is the way it looks!
any how , you first have to make sub interfaces because it is why called as router on a stick.
R1(config)#int fa0/0
R1(config-if)#no ip address
R1(config-if)#no shut

R1(config-if)#int fa0/0.2
R1(config-subif)#encapsulation dot1Q 100
R1(config-subif)ip add 192.168.1.1 255.255.255.0

I hope it will work

Ola_CISCO

Thanks guys!