2:21 PM просто защото не могат да те заразят
а и да те заразят, самата мрежа работи по-различно"
Що за глупости?! Коя мрежа работи по-различно? Човек, ти що не седнеш да четеш RFC-та - поне ще научиш нещо, вместо да вярваш на некомпетентните си приятелчета.
изплвам цитати на изтоюници от интернет:
1.
http://bg.wikipedia.org/wiki/Request_for_Comments2.
http://tools.ietf.org/html/rfc791 (Интернет протокол - на английски)
Request for Comments (RFC)-- "Заявление за обсъждане" представлява документ с пореден номер в серия от такива документи, съдържащ интернет стандарти и/или допълнителна информация. - това ли имаш напредвид?
The internet protocol implements two basic functions: addressing and
fragmentation.
The internet modules use the addresses carried in the internet header
to transmit internet datagrams toward their destinations. The
selection of a path for transmission is called routing.
The internet protocol treats each internet datagram as an independent
entity unrelated to any other internet datagram. There are no
connections or logical circuits (virtual or otherwise).
The internet protocol uses four key mechanisms in providing its
service: Type of Service, Time to Live, Options, and Header Checksum.
2.1. Relation to Other Protocols
The following diagram illustrates the place of the internet protocol
in the protocol hierarchy:
+------+ +-----+ +-----+ +-----+
|Telnet| | FTP | | TFTP| ... | ... |
+------+ +-----+ +-----+ +-----+
| | | |
+-----+ +-----+ +-----+
| TCP | | UDP | ... | ... |
+-----+ +-----+ +-----+
| | |
+--------------------------+----+
| Internet Protocol & ICMP |
+--------------------------+----+
|
+---------------------------+
| Local Network Protocol |
+---------------------------+
Protocol Relationships
Figure 1.
Internet protocol interfaces on one side to the higher level
host-to-host protocols and on the other side to the local network
protocol. In this context a "local network" may be a small network in
a building or a large network such as the ARPANET.
It sends this datagram and the local network address to the local
network interface.
The local network interface creates a local network header, and
attaches the datagram to it, then sends the result via the local
network.
Addresses are fixed length of four octets (32 bits). An address
begins with a network number, followed by local address (called the
"rest" field). There are three formats or classes of internet
addresses: in class a, the high order bit is zero, the next 7 bits
are the network, and the last 24 bits are the local address; in
class b, the high order two bits are one-zero, the next 14 bits are
the network and the last 16 bits are the local address; in class c,
the high order three bits are one-one-zero, the next 21 bits are the
network and the last 8 bits are the local address.
Gateways implement internet protocol to forward datagrams between
networks. Gateways also implement the Gateway to Gateway Protocol
(GGP) [7] to coordinate routing and other internet control
information.
In a gateway the higher level protocols need not be implemented and
the GGP functions are added to the IP module.
+-------------------------------+
| Internet Protocol & ICMP & GGP|
+-------------------------------+
| |
+---------------+ +---------------+
| Local Net | | Local Net |
+---------------+ +---------------+
Gateway Protocols
Figure 3.
http://www.rfc-editor.org/rfc/rfc791.txtIP address
An identifier for a computer or device on a TCP/IP network. Networks using the TCP/IP protocol route messages based on the IP address of the destination. The format of an IP address is a 32-bit numeric address written as four numbers separated by periods. Each number can be zero to 255. For example, 1.160.10.240 could be an IP address.
http://www.webopedia.com/TERM/I/IP_address.htmlДа халхабер си нямам от мрежи. Но не искам да се затормозявам след като има форум и отговарят тези които знаят или са тесни специалисти в областта на мрежите и други подобни.
