I'm reading Comer's TCP/IP book, where (page 107 of the 4th edition, if you're interested) he states: <BR><BLOCKQUOTE class="ip_ubbcode_quote"><font size="-1">quote ...

The current IP address scheme of 32-bit words is fast becoming inadequate. It would appear that 2 32 = 4 294 967 296 combinations of addresses should be enough for everybody, but in practice this is ...

IP校验和的计算方法是：首先将IP首部的校验和字段设为0（IP_HEADER.checksum=0）,然后计算整个IP首部（包括选项）的二进制反码的和。

If you look at the many fields in a typical IP packet, you might hesitate when you see there are several error check fields. In the Ethernet part of the packet we ...

The purpose of the network layer is to help route messages between different local networks. Central to this layer is the concept of exclusive network addresses, where every terminal connected to the ...