Solved: router on a stick

DARYLE DIANIS · ‎04-25-2009

I have an isr 2851 and need to support multiple vlans on g0/0, I'm connecting to a layer 2 switch. Is a router on a stick my only option? Do the isr's support a trunk command, similar to the "switchport mode trunk" found on cat switches?

Jon Marshall · ‎04-25-2009

"I'm connecting to a layer 2 switch. Is a router on a stick my only option"

Unless you have an etherswitch module in the 2851 then yes that is pretty much your only option.

"Do the isr's support a trunk command, similar to the "switchport mode trunk" found on cat switches?"

Again with etherswitch modules this command is available but not if you are just using one of the inbuilt gigabit ethernet interfaces.

Jon

View solution in original post

Jon Marshall · ‎04-25-2009

"I'm connecting to a layer 2 switch. Is a router on a stick my only option"

Unless you have an etherswitch module in the 2851 then yes that is pretty much your only option.

"Do the isr's support a trunk command, similar to the "switchport mode trunk" found on cat switches?"

Again with etherswitch modules this command is available but not if you are just using one of the inbuilt gigabit ethernet interfaces.

Jon

DARYLE DIANIS · ‎04-25-2009

thanks for the quick answer to my post.