Users of a site-to-site VPN are reporting performance problems. The VPN connection employsIPSec and GRE and traverses several Ethernet segments. The VPN packets are being fragmented as they traverse the links. What would be two methods to overcome this problem？（）

A. They do not receive unique IP addresses.
B. RADIUS or LDAP is required.
C. They are assigned addresses from the internal DHCP pool.
D. Their traffic appears to originate from the originating host network.

A. Delay should be no more than 10 ms.
B. Loss should be no more than 1 percent.
C. Jitter should be less then 40 ms.
D. Managed bandwidth is strongly recommended for voice control traffic.

A. 0.01
B. 0.1
C. 1
D. 2.5