TCP/IP Tutorial and Technical Overview phần 2 ppt

... illustrated in Figure 3 -22 . Figure 3 -22 IP: The type byte structure type 1 byte type length option data / / / / 1 byte length - 2 bytes 1 byte 120 TCP/IP Tutorial and Technical Overview An exception ... traffic between subnets. 110 TCP/IP Tutorial and Technical Overview 3 .2. 1 ICMP messages ICMP messages are described in RFC 7 92 and RFC 950, belong to STD 5,...

Ngày tải lên: 14/08/2014, 14:20

... repeated } } 1 1 2 2 2 16 2 2 4 4 4 4 } } Authentication Entry 1 82 TCP/IP Tutorial and Technical Overview The RIP packet format is shown in Figure 5-4. Figure 5-4 RIP packet format A 5 12 byte packet ... Direct 1 N5 R4 2 N6 R4 3 Router R2 Distance Vector Table Router R3 Distance Vector Table Router R4 Distance Vector Table N1 N2 N3 N4 N5 N6 R1 R2 R3 R4 R5 21 2 TCP/IP...

Ngày tải lên: 14/08/2014, 14:20

... about the connection protocols and architectures presented throughout this chapter: RFC 3344 – IP Mobility Support (August 20 02) 3 12 TCP/IP Tutorial and Technical Overview different priorities, ... to a special TCP/IP port, the receivers can make a Wildcard-Filter reservation for all packets with this destination port. 324 TCP/IP Tutorial and Technical Overview...

Ngày tải lên: 14/08/2014, 14:20

... conformance and performance testing for implementations of IETF IPv6 standards or RFCs. Interoperability testing is also a key ITS service. 398 TCP/IP Tutorial and Technical Overview 8 02. 11a An ... DSSS. 8 02. 11b Also known as 8 02. 11 High Rate or WiFi. An extension to 8 02. 11 that applies to wireless LANs and provides 11 Mbps transmission with fallbacks to 5.5, 2, and...

Ngày tải lên: 14/08/2014, 14:20

... Router Note: WAP -26 1-WTLS -20 010406-a is only the original specification. It has been updated by specifications WAP -26 1_100-WTLS -20 010 926 -a, WAP -26 1_101-WTLS -20 011 027 -a, and WAP -26 1_1 02- WTLS -20 011 027 -a. ... in OMA specifications WAP -21 7-WPKI -20 010 424 -a, WAP -21 7_103-WPKI -20 0111 02- a, and WAP -21 7_105-WPKI -20 020 816-a.  SEC-Commit: Initiated when t...

Ngày tải lên: 14/08/2014, 14:20

... synonymous with “IP gateway.” TCP/IP Tutorial and Technical Overview December 20 06 International Technical Support Organization GG24-3376-07 10 TCP/IP Tutorial and Technical Overview The client/server ... (4.3BSD Tahoe) and 1990 (4.3BSD Reno). 4.4BSD was released in 1993. Due to funding constraints, 4.4BSD was xxiv TCP/IP Tutorial and Technical Overview...

Ngày tải lên: 14/08/2014, 14:20

... command received. 490 TCP/IP Tutorial and Technical Overview The Interpret As Command (IAC) character is followed by a command code. If this command deals with option negotiation, the command ... size IBM- 327 8 -2 IBM- 327 8 -2- E 24 row x 80 col display IBM- 327 8-3 IBM- 327 8-3-E 32 row x 80 col display IBM- 327 8-4 IBM- 327 8-4-E 43 row x 80 col display IBM- 327 8-5 IBM- 327...

Ngày tải lên: 14/08/2014, 14:20

... hard line break and an imbedded =0D=0A 6 G 22 W 38 m 54 2 7 H23X39n553 8 I24Y40o564 9 J25Z41p575 10K26a42q586 11L27b43r597 12 M 28 c 44 s 60 8 13 N 29 d 45 t 61 9 14O30e46u 62+ 15 P 31 f 47 v ... RFC 22 31 – MIME Parameter Value and Encoded Word Extensions (November 1997)  RFC 28 21 – Simple Mail Transfer Protocol (April 20 01)  RFC 28 22 – Internet Message Format (April...

Ngày tải lên: 14/08/2014, 14:20

... host Secure network Non-secure network epn: Ephemeral port number n ep1 21 21 ep2 ep4 ep6 ep5 ep3 Outbound Chapter 22 . TCP/IP security 805 Figure 22 -18 Circuit-level gateway 22 .3.3 Types of firewalls A firewall consists ... & authentication Cleartext Original cleartext Ciphertext Alice Bob cleartext clea cle cleartext clea cle cleartext clea cle 808 TCP/IP Tutorial and...

Ngày tải lên: 14/08/2014, 14:20

... vary widely and have advantages and disadvantages. 898 TCP/IP Tutorial and Technical Overview Figure 23 -6 and Figure 23 -7 show sniffer traces for two types of authentication, EAP-MD5 and PEAP, ... Identifier Length Type Data // 6 6 2 1 1 2 1 1 2 (Bytes) // Ethernet Header 8 02. 1x/EAPOL Header EAP Header N (Bytes) 894 TCP/IP Tutorial and Technical Overv...

Ngày tải lên: 14/08/2014, 14:20