... of, 41 3 -41 4 TCP/ IP domain name resolution, 41 9 -42 0dynamic addresses, 41 8firewalls, 42 0getting started with, 41 5 -41 7segmenting, 41 7 -41 8signatures and VPNs, 42 1 -42 2web services, 42 1IIAB (Internet ... 341 - 343 transport options, 343 - 346 Voice over IP (VoIP), 347 - 348 subdomains, 193subnet IDs, 75-77 43 4routingFrom the Library of Athicom Parinayakosolptg 41 8HOUR 24: Implementing a TCP/ IP ... both IPv4 and IPv6. IPSec is built in to the structure of IPv6 protocolsystem. In IPv4, IPv4 is considered an extension, but IPSec support is neverthelessbuilt into many IPv4 implementations.IPSec...