header checksum造句

• The IPv6 protocol lacks a header checksum : its designers considered that the whole-packet link-layer checksumming provided in layer 2 transports such as UDP, were sufficient to make a separate header checksum unnecessary.
• The IPv6 protocol lacks a header checksum : its designers considered that the whole-packet link-layer checksumming provided in layer 2 transports such as UDP, were sufficient to make a separate header checksum unnecessary.
• To avoid all of these problems, the Internet Protocol allows for routers to simply drop packets if the router or a network segment is too busy to deliver the data in a timely fashion, or if the IPv4 header checksum indicates the packet has been corrupted.
• For an originating NAT to pass TCP or UDP successfully, it must recompute the TCP / UDP header checksum based on the translated IP addresses, not the original ones, and put that checksum into the TCP / UDP header of the first packet of the fragmented set of packets.