i just bought a BCSI lab companion book for CCNP
The router mentioned in the book for the labs are 3 2811 routers with 12.4 advanced IP services image of IOS
what i have at home is a two 2620(16F/64DRAM) routers with wic 1t and ios 12.3
and 1 2520 router with 12.1 IOS and 8F/16DRAM
so total i have three routers
i cant afford to buy the 2811 routers now
my question can i use the routers i already have for the lab workbook which desires three 2811 routers with 12.4 IOS ?
The the only alternative is I can buy another router which is not as expensive as the 2811 routers to replace the 2520 which i already have