Tài liệu giảng dạy CCNA - module 05 chapter 17-IP Access Control List Security

... access- list access- list- number { permit || deny } {test-conditions} access- list access- list- number { permit deny } {test-conditions}  Defines an ACL  Alert an ACL use no access- list access- list- number ... (config)# access- list access- list- number access- list access- list- number {deny | permit} source [source-wildcard] [log] {deny | permit} source [sourc...

Ngày tải lên: 12/08/2015, 09:18

... 11000000 N 1010 10000 N 00 0010 10 00000000 N H 11000000 1010 10000 00 0010 10 N N N 00000000 sN H Class B Network address: 132.10.0.0 100 0010 0 N 100 0010 0 N 00 0010 10 N 00000000 N H 00 0010 10 N 00000000 ... Known IP: IP: Unknown IP Address Unknown IP Address Gateway Gateway IP of server IP of server Filename of Filename of boot file boot file BOOTP server MAC1 – IP1 M...

Ngày tải lên: 12/08/2015, 09:13

... ring topology connects one host to the next and the last host to the first • This creates a physical ring of cable Network Topology: Physical layout A star topology Connects all cables to a central ... hubs and/or switches together the system is linked to a computer that controls the traffic on the topology Network Topology: Physical layout • Each host has its own connections to...

Ngày tải lên: 12/08/2015, 09:13

... Table of Content The TCP/ IP protocol architecture The OSI model THE TCP/ IP PROTOCOL ARCHITECTURE The TCP/ IP Application Layer  TCP/ IP application layer protocols provide services ... Please Reliably Send This, Mr TCP! TCP Web client HTTP Get HTTP Get TCP Acknowledgment TCP HTTP Ok Web page TCP Acknowledgement Summary: Same-Layer and Adjacent-Layer Interactions So...

Ngày tải lên: 12/08/2015, 09:13

... manufacturer or vendor Using MAC addresses Data A D Data A D Data A D Data A D Destination Address Source Address Data Link Function 3: Error Detection  Most data- link protocols include a frame check ... burned-in addresses (BIAs) because they are burned into read-only memory (ROM) and are copied into random-access memory (RAM) when the NIC initializes  0000.0c12.3456 or 0...

Ngày tải lên: 12/08/2015, 09:13

... but others not Cabling and Connectors STP Cable 10 ScTP Cable 11 UTP Cable 12 RJ-45 Plug 13 Coaxial Cable 14 10BASE-2 AND 10BASE-5 CONNECTORS 15 Multimode Fiber 16 Single-mode Fiber 17 Other Optical ... mold as an RJ-45 connector, which makes it easy to install 19 WIRELESS COMMUNICATION 20 Wireless LAN Organizations And Standards  A key technology contained within the 802.11 standard...

Ngày tải lên: 12/08/2015, 09:13

... 1010 1100 0 0010 000 0000 0010 1010 0000 Host 255.255.255.192 11111111 11111111 11111111 11000000 Mask 1010 1100 0 0010 000 0000 0010 10000000 Subnet 1010 1100 0 0010 000 0000 0010 1011 1111 Broadcast 1010 1100 ... 192.168.5.121: 11000000 1010 1000 000 0010 1 011 11 001 255.255.255.248: 11111111 11111111 11111111 11111000 Subnet: 11000000 Broadcast: 11000000 1010 1000 000 0010 1 011 11000...

Ngày tải lên: 12/08/2015, 09:13

... sequence numbers and acknowledgments The Transmission Control Protocol TCP: Three way handshaking A B TCP: Window and Acknowledgment TCP: Sliding window and Acknowledgment TCP: Sequence and acknowledgment ... that use UDP include: TFTP, SNMP, DHCP, DNS UDP Header format 68 -7 FC R  UDP is a simple protocol that exchanges datagrams, without acknowledgments or guaranteed d...

Ngày tải lên: 12/08/2015, 09:13

... Upload ADSL 1.54 4-8 .192Mbps 1 6-6 40Kbps SDSL 1.54 4-2 .048Mbps 1.54 4-2 .048Mbps HDSL 1.54 4-2 .048Mbps 1.54 4-2 .048Mbps IDSL 144Kbps 144Kbps RADSL 64Kbps-8.192Mbps 1 6-7 68Mbps CDSL 1Mbps 1 6-1 60Kbps 21 Protocols ... rate than modems  B channels are suitable for negotiated Point-to-Point Protocol (PPP) links 14 ISDN channels  ISDN uses out-of-band signaling, the delta...

Ngày tải lên: 12/08/2015, 09:18

... Data-Link Protocols for Point-to-Point Leased Lines Authentication Over WAN Links Review of WAN Basics Overview of WAN  The three main categories of WAN options:  Leased point-to-point lines ... Dial lines (also called circuit-switched lines)  Packet-switched networks Physical Components of Point-to-Point Leased Lines TELCO CSU CSU WAN switch CPE CO Demarc CPE WAN switch CO Demarc Da...

Ngày tải lên: 12/08/2015, 09:18

... components in an ISDN network • Configure ISDN BRI and legacy dial-on-demand routing (DDR) • Verify DDR operation using show and debug commands 32 ... completion of this chapter, you will be able to perform the following tasks: • Describe the components that make up ISDN connectivity • Configure ISDN BRI and legacy dial-on-demand routing (DDR) • ... Voice, data, video, and sp...

Ngày tải lên: 12/08/2015, 09:18

... point-to-point ip address 10.17.0.1 255.255.255.0 bandwidth 64 frame -relay interface-dlci 110 ! interface Serial0.3 point-to-point ip address 10.18.0.1 255.255.255.0 bandwidth 64 frame -relay ... frame -relay encapsulation frame -relay bandwidth 64 bandwidth 64 frame -relay lmi-type ansi Inverse ARP • Enabled by default • Does not appear in configuration output Configuring a Static Fram...

Ngày tải lên: 12/08/2015, 09:18

... Table of Content OSI Layer for Point-to-Point WANs OSI Layer for Point-to-Point WANs Packet-switching service OSI Layer for Point-to-Point WANs Overview WAN connections  Point-to-point WAN ... over optical links 18 SONET Link Speeds Optical Carrier Speed OC-1 52Mbps OC-3 155Mbps OC-12 622Mbps OC-48 2.4Gbps OC-192 9.6Gbps OC-768 40Gbps 19 ATM  Asynchronous Transfer Mode (ATM) provide...

Ngày tải lên: 12/08/2015, 09:18

... Point-to-point only • Attached to dedicated switched port • Requires full-duplex support on both ends • Collision free • Collision detect circuit disabled 11 CONFIGURING CISCO 2950 LAN SWITCHES ... Switch(config)#mac-address-table static FastEthernet vlan  To remove this entry use the no form of the command:  Switch(config)#no mac-address-table ... show commands to verify Catal...

Ngày tải lên: 12/08/2015, 09:19

... stop the loop Solution: Spanning -Tree Protocol x Block Provides a loop free redundant network topology by placing certain ports in the blocking state Spanning -Tree Operations • One root bridge ... Spanning -Tree Protocol Root Bridge Selection Switch X Default priority 32768 (8000 hex) MAC 0c0011111111 BPDU Switch Y Default priority 32768 (8000 hex) MAC 0c0022222222 BPDU = Bridge pro...

Ngày tải lên: 12/08/2015, 09:19