Hi dear  you need some structure in stack , before any solution becarfule about switches, shutdown all switches from power. step 1 : first 2 switch make stack together. ( with same IOS , ...) step 2 : if any thinks is normal added next switch , until...

Hi  u can see at page 82,... I think must be helpful for you download used guide here

Hi my dear  do u can use ASDM in each site , default asdm in router is enough . must be try with software is so easier than command line and not have a problem if u have any problem in the way u can see notice from the software notice. MA

Hi my friend  I shared for you bellow link, is really simple and useful , you can see configuration and .... If you need more detail plz ask from me I can help you on true way. http://www.cisco.com/c/en/us/support/docs/ip/enhanced-interior-gateway-ro...