Difference between revisions of "B&O"
From Teknologisk videncenter
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=== Tcp/IP === | === Tcp/IP === | ||
| − | === Application Protocols === | + | === Application Protocols === |
| − | * FTP = 20/21 | + | |
| − | * SSH = 22 | + | *FTP = 20/21 |
| − | * Telnet = 23 | + | *SSH = 22 |
| − | * SMTP = 25 | + | *Telnet = 23 |
| − | * DNS = 53 | + | *SMTP = 25 |
| − | * DHCP = 67 | + | *DNS = 53 |
| − | * TFTP = 69 | + | *DHCP = 67 |
| − | * HTTP = 80 | + | *TFTP = 69 |
| − | * POP3 = 110 | + | *HTTP = 80 |
| − | {| | + | *POP3 = 110 |
| + | |||
| + | {| cellspacing="1" cellpadding="1" border="1" width="200" style="text-align: center;" | ||
|- | |- | ||
| − | | | + | | Application Protocol |
|- | |- | ||
| Name | | Name | ||
| Line 376: | Line 378: | ||
| File Transfer Protocol | | File Transfer Protocol | ||
| FTP | | FTP | ||
| − | | 20/21 | + | | 20/21 |
| TCP/UDP | | TCP/UDP | ||
|} | |} | ||
Revision as of 12:27, 2 May 2012
Dette vil blive brugt af studie grupper på B&O
Contents
CCNP
Her vil der være forskellige ccnp relaterede emner
BGP
see also BGP
ISIS
see also IS-IS
EIGRP
see also EIGRP
OSPF
see also OSPF
QoS
| DSCP | Binary | Decimal | TOS | HEX |
| Default | 000000 | 0 | 0 | 0x0 |
| CS1 | 001000 | 8 | 32 | 0x20 |
| AF11 | 001010 | 10 | 40 | 0x28 |
| AF12 | 001100 | 2 | 48 | 0x30 |
| AF13 | 001110 | 14 | 56 | 0x38 |
| CS2 | 010000 | 16 | 64 | 0x40 |
| AF21 | 010010 | 18 | 72 | 0x48 |
| AF22 | 010100 | 20 | 80 | 0x50 |
| AF23 | 010110 | 22 | 88 | 0x58 |
| CS3 | 011000 | 24 | 96 | 0x60 |
| AF31 | 011010 | 26 | 104 | 0x68 |
| AF32 | 011100 | 28 | 112 | 0x70 |
| AF33 | 011110 | 30 | 120 | 0x78 |
| CS4 | 100000 | 32 | 128 | 0x80 |
| AF41 | 100010 | 34 | 136 | 0x88 |
| AF42 | 100100 | 36 | 144 | 0x90 |
| AF43 | 100110 | 38 | 152 | 0x98 |
| CS5 | 101000 | 40 | 160 | 0xA0 |
| EF | 101110 | 46 | 184 | 0xB8 |
| CS6 | 110000 | 48 | 192 | 0xC0 |
| CS7 | 111000 | 56 | 224 | 0xE0 |
| EF (101 110) | ||||||||||||||||||||
| ||||||||||||||||||||
| Best Effort (000 000) |
LFI
| 1 Bytes | 64 Bytes | 128 Bytes | 256 Bytes | 512 Bytes | 1024 Bytes | 1500 Bytes | |
| 56 kbps | 143 us | 9 ms | 18 ms | 36 ms | 72 ms | 144 ms | 214 ms |
| 64 kbps | 125 us | 8 ms | 16 ms | 32 ms | 64 ms | 128 ms | 187 ms |
| 128 kbps | 62,5 us | 4 ms | 8 ms | 16 ms | 32 ms | 64 ms | 93 ms |
| 256 kbps | 31 us | 2 ms | 4 ms | 8 ms | 16 ms | 32 ms | 46 ms |
| 512 kbps | 15,5 us | 1 ms | 2 ms | 4 ms | 8 ms | 16 ms | 23 ms |
| 768 kbps | 10 us | 640 us | 1.28 ms | 2.56 ms | 5.1 ms | 10.2 ms | 15 ms |
| 1536 kbps | 5 us | 320 us | 640 us | 1.28 ms | 2.56 ms | 5.12 ms | 7.5 ms |
CCNA
Her vil der være forskellige ccna relaterede emner
Tools
- Ping – test the connection between two hosts
- Ipconfig – get the settings for your local device
- Nslookup – lookup ip address for an webpage or server
- Tracert – test where an connection
- Arp – address resolution protocol
- Netstats – local TCP/UDP connection
Other Tools
- Packet tracer - Cisco network simulation program
OSI Model
| OSI Model | |||
|---|---|---|---|
| Data unit | Layer | Function | |
| Host layers |
Data | 7. Application | Network process to application |
| 6. Presentation | Data representation, encryption and decryption, convert machine dependent data to machine independent data | ||
| 5. Session | Interhost communication, managing sessions between applications | ||
| Segments | 4. Transport | End-to-end connections, reliability and flow control | |
| Media layers |
Packet/Datagram | 3. Network | Path determination and logical addressing |
| Frame | 2. Data link | Physical addressing | |
| Bit | 1. Physical | Media, signal and binary transmission |
Tcp/IP
Application Protocols
- FTP = 20/21
- SSH = 22
- Telnet = 23
- SMTP = 25
- DNS = 53
- DHCP = 67
- TFTP = 69
- HTTP = 80
- POP3 = 110
| Application Protocol | |||
| Name | Short Name | Port | Transfer Protocol |
| File Transfer Protocol | FTP | 20/21 | TCP/UDP |
Spanning Tree
see also Spanning Tree
DHCP
see also DHCP
Øvelser
Andet
Configure Password:
Router#<input>conf t</input>
Router(config)#<input>enable secret MyNewPassword</input>
Router(config)#<input>line vty 0 4</input>
Router(config-line)#<input>password MyNewPassword</input>
Router(config-line)#<input>login</input>
Router(config-line)#<input>line console 0</input>
Router(config-line)#<input>password MyNewPassword</input>
Router(config-line)#<input>login</input>
Router(config-line)#<input>end</input>
Router#<input>wr</input>Change Banner:
Router#<input>conf t</input>
Router(config)#<input>banner motd Q</input>
Enter TEXT message. End with the character 'Q'.
<input>###### ##### #######
# # ## # # #### # # # # # # # ###### #### ###### # #
# # # # ## # # # # # # # # # # # # # ## #
###### # # # # # # # ### # # # # # # # ##### #### ##### # # #
# # ###### # # # # ### # ## # # # # # # # # # # #
# # # # # ## # # # ## # # # # # # # # # # ##
###### # # # # #### ##### # ####### ###### #### # #### ###### # #
***************************************
* Access for Authorized personal only *
***************************************
Q</input>
Router(config)#<input>end</input>
Router#<input>wr</input>Disable Domain lookup:
Router#<input>conf t</input>
Router(config)#<input>no ip domain-lookup</input>
Router(config)#<input>end</input>
Router#<input>wr</input>