You are migrating the network design from using point security products (perimeter router, firewall, VPN router, IPS) to an integrated security solution using Cisco ISR. During
the migration process, you determine that you need to improve VPN performance. What can you do?
A.
upgrade the Cisco IOS image on the ISR to the V3PN bundle
B.
increase the RAM on the ISR
C.
install AIM-VPN EPII-PLUS on the ISR
D.
enable transparent tunneling using IPSec over TCP