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CIT 384: Network Administration

CIT 384: Network Administration. Router Configuration. Topics. Cisco 2960 IOS CLI Differences IOS Upgrades Booting. Routing at Network Layer. Forwards IP frames between two networks. A router is a specialized computer dedicated to routing. Router OS Cisco IOS Juniper JUNOS Linux.

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CIT 384: Network Administration

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  1. CIT 384: Network Administration Router Configuration CIT 384: Network Administration

  2. Topics • Cisco 2960 • IOS CLI Differences • IOS Upgrades • Booting CIT 384: Network Administration

  3. Routing at Network Layer • Forwards IP frames between two networks. • A router is a specialized computer dedicated to routing. • Router OS • Cisco IOS • Juniper JUNOS • Linux CIT 384: Network Administration

  4. Cisco 2960 Router • Two 10/100 Mbps Ethernet ports • Supports variety of modules • WAN interfaces • VoIP • Wireless CIT 384: Network Administration

  5. Accessing the IOS CLI • Serial console. • AUX port modem • Network: telnet • Network: ssh CIT 384: Network Administration

  6. IOS CLI Differences • Configuration of IP addresses. • Setup mode questions. • Routing table. • Routing protocols. CIT 384: Network Administration

  7. Router Modes CIT 384: Network Administration

  8. IOS Upgrade Process CIT 384: Network Administration

  9. IOS Upgrade Procedure R1#copytftp flash c System flash directory: File Length Name/status 1 7530760 c4500-d-mz.120-2.bin [7530824 bytes used, 857784 available, 8388608 total] Address or name of remote host [255.255.255.255]? 134.141.3.33 Source file name? c4500-d-mz.120-5.bin Destination file name [c4500-d-mz.120-5.bin]? Accessing file c4500-d-mz.120-5.bin on 134.141.3.33... Loading c4500-d-mz.120-5.bin from 134.141.3.33 (via Ethernet0): ! [OK] Erase flash device before writing? [confirm] Flash contains files. Are you sure you want to erase? [confirm] Copy 'c4500-d-mz.120-5.bin ' from server y as 'c4500-d-mz.120-5.bin ' into Flash WITH erase? [yes/no]y Erasing device... eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee ...erased Loading c4500-d-mz.120-5.bin from 134.141.3.33 (via Ethernet0): !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! (leaving out lots of exclamation points) [OK 7530760/8388608 bytes] Verifying checksum... OK (0xA93E) Flash copy took 0:04:26 [hh:mm:ss] CIT 384: Network Administration

  10. IOS Boot Sequence CIT 384: Network Administration

  11. Starting IOS CIT 384: Network Administration

  12. Router# configure terminal Router(config)# boot system flash c2800k9_42-18.bin Router(config)# boot system tftp c2800-1.bin 10.1.1.1 Router(config)# boot system rom Router(config)# exit Router# copy running-config startup-config boot system Router uses boot system commands in NVRAM to locate IOS. After a reload, router will try these in the order they were entered. CIT 384: Network Administration

  13. IOS Image Naming flash:c2800nm-advsecurityk9-mz.124-13b.bin Platform Feature Set File Format (RAM Compressed) Version (12.4) Patch Level Encryption (3DES) Location of Image CIT 384: Network Administration

  14. IOS Feature Set Inheritance CIT 384: Network Administration

  15. Configuration Register CIT 384: Network Administration

  16. Common Register Settings CIT 384: Network Administration

  17. References • James Boney, Cisco IOS in a Nutshell, 2nd edition, O’Reilly, 2005. • Cisco, Cisco Connection Documentation, http://www.cisco.com/univercd/home/home.htm • Cisco, Internetworking Basics, http://www.cisco.com/univercd/cc/td/doc/cisintwk/ito_doc/introint.htm • Wendell Odom, CCNA Official Exam Certification Library, 3rd edition, Cisco Press, 2007. CIT 384: Network Administration

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