You are asked to implement an IPsec VPN between your main office and a new remote office. The remote office receives its IKE gateway address from their ISP dynamically.
Regarding this scenario, which statement is correct?
A. Configure a fully qualified domain name (FQDN) as the IKE identity.
B. Configure the dynamic-host-address option as the IKE identity.
C. Configure the unnumbered option as the IKE identity.
D. Configure a dynamic host configuration name (DHCN) as the IKE identity.