To keep from packet looping in network, a hop count field is used in the header of packet. 6. A PRN operating system is developed under the radio platform. First, we analyzed the source code of NOS, which is developed according to TCP/IP.
在无线实验平台的基础上，进行了对现有以TCP/IP为标准开发的网络操作系统NOS的源程序的分析和研究，实现了PRN协议层和IP协议层随接口的研究和实现。
Each TCP session has a destination port number in the TCP header.
每个TCP会话在TCP报头中有一目的端口号。
When a TCP segment is received, the TCP router knows which port to pass it to by looking at the port number in the TCP header.
当接收到一个TCP段时，TCP路由器通过查看TCP报头中的端口号就知道向哪个端口传送包。
Network firewalls, Analysis of TCP header, data reported filtering, host communications, gateway rules.
网络防火墙，分析TCP包头，实现数据报过滤，主机通信，网关规则。
And several shortened TCP improvement techniques, including Header Prelibation, Retransmission Roll-back are introduced.
同时应用了几种简化的TCP优化技术以提升性能，包括头部预测、重传回退。
Through Linux system, kernel drive's programming hold up TCP/IP stack data packet, and rewrite header information according to operating system fingerprint storehouse and network camouflage strategy, and track record information, come true data transparent transmission.
通过linux系统内核驱动编程，拦截TCP/IP协议栈的数据包，根据操作系统的指纹库和网络伪装的策略改写报头信息，并跟踪会话信息，实现数据透明传输。
Because of the design deficiency of TCP/IP and the open design principle of the Internet, the source address in IP header may be forged.
这种入侵方式的发生主要是由于TCP/IP协议中固有的设计缺陷和互联网开放的设计原则，使得数据包中包含的源地址有可能是伪造的。
The variable-length fields at the beginning of the data portion of the Ethernet frame (the IP header and the TCP header) were moved to the end (right before the CRC).
以太帧中数据部分前面（IP头部和TCP头部）的变长区域被移动到了尾部（正好在CRC前面）。
Themain framework is introduced and the TCP packet header is analysed in details, then the method of realization covert channel in TCPprotocol is given.
论文给出了隐写术的主要框架、详细分析了TCP协议的包头；
Router#show ip int s1/0 Serial1/0 is up, line protocol is up Internet address is 10.1.1.1/30 Broadcast address is 255.255.255.255 Address determined by setup command MTU is 1500 bytes Helper address is not set Directed broadcast forwarding is disabled Outgoing access list is not set Inbound access list is not set Proxy ARP is enabled Security level is default Split horizon is enabled ICMP redirects are always sent ICMP unreachables are always sent ICMP mask replies are never sent IP fast switching is disabled IP fast switching on the same interface is disabled IP Flow switching is disabled IP Fast switching turbo vector IP multicast fast switching is disabled IP multicast distributed fast switching is disabled Router Discovery is disabled IP output packet accounting is disabled IP access violation accounting is disabled TCP/IP header compression is disabled RTP/IP header compression is disabled Probe proxy name replies are disabled Policy routing is disabled Network address translation is disabled WCCP Redirect outbound is disabled WCCP Redirect exclude is disabled BGP Policy Mapping is disabled
路由器＃显示IP的诠释中一/零 serial1/0了，线议定书是（连互联网地址是10.1.1.1/30 广播地址是255.255.255.255 地址确定的安装程序命令 MTU是1500字节助理地址是未设置定向广播转发的存款保险计划即将离任的访问列表中没有设置的入站访问，名单没有设置代理ARP是启用的安全级别是预设分裂的视野是启用 ICMP的重定向总是发出的ICMP unreachables都是发送ICMP的面具，现答复从未发送的IP快速切换是残疾人士 IP的快速切换在同一界面上是残疾人士的IP流的开关是残疾人士的IP快速切换的Turbo矢量IP组播快速切换是残疾人士 IP组播的分布式快速切换是残疾人士的路由器发现是残疾人士的IP数据包输出的会计是残疾人士的IP接入违反会计是残疾人士 TCP/IP报头压缩是残疾人士的RTP/IP报头压缩是残疾人士的探针Proxy名称的答复是残疾人士的政策，路由是残疾人士网络地址转换是残疾人士wccp重定向外，是残疾人wccp重定向排除是残疾人士的BGP政策映射是残疾人士
TCP header, which includes information on the port, implied protocol, flags and sequencing numbers.
TCP报头，它包含端口上的信息、隐含的协议、标记和顺序编号。
In order to improve the spectrum efficiency of wireless channel, header compression schemes are used to reduce the TCP/IP protocol header size in wireless IP networks.
在无线IP网络中，采用报头压缩技术减小TCP/IP协定报头带来的额外开销，提高无线通道的频谱利用率。