I am having a 1841 router that has IOS "C1841-IPBASE-M" (flash:c1841-ipbase-mz.124-1c.bin). Now i need to set up IPSec VPN on this router. SO which IOS should be choosen for this?
a) c1841-advsecurityk9-mz - ADVANCED SECURITY
b) c1841-advipservicesk9-mz ADVANCED IP SERVICES
The hardware specs are:-
DRAM configuration is 64 bits wide with parity disabled.
191K bytes of NVRAM.
31360K bytes of ATA CompactFlash (Read/Write)
Thanks and Regards