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CISCO IOS in a Nutshell

Book Description

Routers are the glue that holds the Internet together, and Cisco Systems--holding roughly 70% of the market--is the most prominent router manufacturer. Cisco's routers come in all shapes and sizes and almost all of them, from the smallest to the largest, run the IOS operating system. IOS is an extremely powerful and complex operating system, with an equally complex configuration language. There are many commands, with many options, and if one thing is configured incorrectly, the entire company could find itself offline. Cisco IOS in a Nutshell covers IOS configuration for the TCP/IP protocol family. The book is divided into two parts: the first part includes chapters on the user interface, configuring lines and interfaces, access lists, routing protocols, and dial-on-demand routing and security; the second part is a classic O'Reilly-style quick reference to all the commands that you need to work with TCP/IP, including the lower-level protocols on which it relies, and lots of examples of the most commonly encountered configuration steps for the routers themselves.

Table of Contents

  1. Cisco IOS in a Nutshell
    1. Preface
      1. Organization
      2. Conventions
      3. We’d Like to Hear from You
      4. Acknowledgments
    2. 1. Getting Started
      1. Introduction
      2. IOS User Modes
      3. Command-Line Completion
      4. Get to Know the Question Mark
      5. Command-Line Editing Keys
      6. Pausing Output
      7. show Commands
    3. 2. IOS Images and Configuration Files
      1. IOS Images
        1. IOS Image File Names
          1. Platform identifier
          2. Feature set
          3. Image execution location
        2. Loading Image Files Through the Network
          1. Using RCP to download files
      2. Using the IOS Filesystem for Images
        1. Upgrading Flash Memory Using the Filesystem Commands
      3. The Router’s Configuration
      4. Loading Configuration Files
        1. Loading the running-config
        2. Loading the startup-config
        3. Saving running-config to startup-config
        4. Viewing a Configuration
        5. Erasing a Stored Configuration
        6. Saving a Configuration to a Network Server
    4. 3. Basic Router Configuration
      1. Configuration Soapbox
      2. Setting the Router Name
      3. Setting the System Prompt
      4. Configuration Comments
      5. The Enable Password
      6. Mapping Hostnames to IP Addresses
        1. IP Host Tables
        2. Enabling DNS
      7. Setting the Router’s Time
        1. The Calendar Versus the Clock
        2. Configuring NTP
      8. Enabling SNMP
      9. Cisco Discovery Protocol
      10. System Banners
        1. Creating Banners
        2. Disabling Banners
    5. 4. Line Commands
      1. What Is a Line?
      2. The line Command
        1. Absolute and Relative Line Numbering
      3. The Console Port
      4. Virtual Terminals (VTYs)
      5. Asynchronous Ports (TTYs)
      6. The Auxiliary (AUX) Port
      7. show line
        1. Reverse Telnet
        2. Common Configuration Items
          1. Communication parameters
          2. Transport type
          3. Session limits and timeouts
          4. Special characters and key sequences
    6. 5. Interface Commands
      1. Naming and Numbering Interfaces
        1. Subinterfaces
      2. Basic Interface Configuration Commands
        1. shutdown
        2. Interface Descriptions
        3. Setting the IP Address and Subnet Mask
          1. Secondary IP address(es)
        4. Other Common Interface Commands
      3. The Loopback Interface
      4. The Null Interface
      5. Ethernet and Fast Ethernet Interfaces
        1. Ethernet Encapsulation
      6. Token Ring Interfaces
      7. ISDN Interfaces
        1. A Simple ISDN Configuration
      8. Serial Interfaces
        1. Serial Encapsulation
        2. Serial T1 Connection
        3. T1 Configuration on a 2524 with a CSU/DSU Card
        4. Channelized T1
      9. Asynchronous Interfaces
        1. Using the group-async Command
        2. Specifying an IP Address Pool
        3. Using BOOTP Configuration Items for Dial-in Connections
        4. Using DHCP for IP Addresses and Dial-in Configuration Items
      10. Interface show Commands
        1. Clearing the show Command Counters
        2. Listing All Interfaces
        3. Using the show interface Commands
          1. show interface accounting
          2. show ip interface
    7. 6. Frame Relay and ATM
      1. Frame Relay
        1. Important Frame Relay Terminology
        2. Frame Relay Configuration
        3. Mapping IP Addresses to DLCIs
          1. Explicitly mapping DLCIs
          2. Configuring a multipoint connection
        4. Frame Relay show Commands
      2. ATM
        1. ATM Terminology
        2. Configuring Permanent Virtual Circuits
          1. Configuring an ATM interface with static IP mapping
          2. Configuring an ATM interface with dynamic IP mapping
        3. Configuring Switched Virtual Circuits
          1. ATM ARP server
        4. Configuring with DXI
        5. ATM show Commands
        6. LAN Emulation (LANE)
          1. LANE configuration notes
          2. Configuring the LECS
          3. Configuring the LES/BUS
          4. Configuring the LEC
          5. LANE show commands
    8. 7. Lists and Queues
      1. Access Lists
        1. How Packets Match a List Entry
          1. Address/mask pairs (wildcards)
          2. Computing a wildcard for a given subnet mask
          3. Access list processing
          4. Implicit deny
          5. Access lists are additive
          6. Outbound access lists are more efficient than inbound
        2. Types of Access Lists
        3. Extended Access Lists
          1. Specifying ports
          2. Established connections
          3. ICMP protocol entries
        4. Applying an Access List to an Interface or Line
        5. Named Access Lists
        6. Reflexive Access Lists
          1. Creating the outbound reflexive list
          2. Creating the inbound reflexive list
          3. Applying the inbound and outbound reflexive lists to an interface
          4. Setting the reflexive timeout
          5. Reflexive list notes
      2. Specific Topics
        1. Adding Comments to an Access List
        2. Timed Access Lists
        3. Building a Gateway Router
          1. IP address spoofing
          2. Permitting FTP through an access list
          3. Passive FTP
          4. The actual access list
        4. Optimizing Your Access Lists
        5. Emulating a Packet Sniffer
        6. Logging Access List Violations
        7. Securely Updating Access Lists
        8. Getting the List to a Router with TFTP or RCP
      3. Managing Priorities with Queues
        1. Priority Lists
        2. Custom Queue Lists
          1. Setting the queue size
          2. Applying a queue to an interface
          3. Assigning packets to queues by protocol type
        3. Weighted Fair Queuing
          1. show commands for all queues
    9. 8. IP Routing Topics
      1. Routing Protocol Topics
        1. Autonomous System (AS) Numbers
        2. Interior and Exterior Gateway Protocols
        3. Distance-Vector and Link-State Routing Protocols
          1. Distance-vector protocols
          2. Link-state routing protocols
        4. Administrative Distance
        5. Variable-Length Subnet Masks (VLSM)and Classless Routing
        6. Protocol Comparison
      2. Static Routes
        1. Default Static Routes
        2. A Static Route to the Null Interface
        3. Backup Static Routes
      3. Split Horizon
      4. Passive Interfaces
        1. Route Redistribution
        2. Filtering Routes
          1. Filtering incoming routes
          2. Filtering outgoing routes
          3. Filtering updates during redistribution
          4. Revisiting the example
        3. Route Maps
          1. Enforcing routing policy with route maps
          2. Enforcing routing policy with the ip policy command
      5. Fast Switching and Process Switching
        1. Fast Switching
        2. Process Switching
        3. Useful show Commands
          1. show ip route summary
          2. clear ip route
          3. show ip protocols
    10. 9. Interior Routing Protocols
      1. RIP
        1. Basic RIP Configuration
        2. Enabling RIPv2 on the Network
        3. Redistributing Other Routing Protocols into RIP
        4. RIPv2 Authentication
      2. IGRP
        1. Basic IGRP Configuration
          1. IGRP’s metric
          2. Packet size
          3. Modifying the range of the network
          4. IGRP’s load balancing
        2. Redistributing Other Protocols into IGRP
      3. EIGRP
        1. Enabling EIGRP on the Network
        2. EIGRP and Route Summarization
          1. Enabling route summarization on a specific interface
        3. EIGRP Authentication
        4. EIGRP Metrics
        5. Tuning EIGRP
        6. EIGRP show Commands
          1. show ip eigrp neighbors
          2. show ip eigrp topology
          3. show ip eigrp traffic
        7. EIGRP Redistribution
          1. RIP
          2. IGRP
        8. Converting an IGRP Network to EIGRP
      4. OSPF
        1. OSPF Concepts
          1. Areas
          2. Router types
          3. Link-state advertisements (LSAs)
          4. Area types
          5. Router ID
          6. Designated router (DR)
        2. Enabling OSPF on the Network
        3. Sample OSPF Configurations
        4. Route Summarization in OSPF
          1. Inter-area summarization
          2. External summarization
        5. Virtual Backbone Links
        6. Interoperability with Other Vendors
        7. Default Routes in OSPF
        8. NSSAs (Not-So-Stubby Areas)
        9. OSPF Configuration Example
          1. Putting route summarization to use
        10. Redistributing Other Protocols into OSPF
        11. OSPF show Commands
          1. show ip ospf border routers
          2. show ip ospf neighbor
          3. show ip ospf database
          4. show ip ospf interface
    11. 10. Border Gateway Protocol
      1. Introduction to BGP
        1. How BGP Selects Routes
        2. Basic Configuration Commands
          1. The router and network commands
          2. The neighbor command
          3. Local-AS numbers
          4. Synchronization
          5. Automatic summary
          6. default-originate
          7. next-hop-self
          8. BGP route dampening
          9. iBGP checklist
      2. A Simple BGP Configuration
      3. Route Filtering
        1. AS Path Filters
        2. Community Filters
        3. Aggregate Filters
      4. An Advanced BGP Configuration
        1. Adding a Preference
      5. Neighbor Authentication
      6. Peer Groups
      7. Route Reflectors
      8. BGP Confederacies
    12. 11. Dial-on-Demand Routing
      1. Configuring a Simple DDR Connection
      2. Sample Legacy DDR Configurations
        1. DDR Backup Links
          1. Backup interface commands
          2. DDR bandwidth on demand with backup interface commands
          3. DDR backup with floating static routes
        2. Dialer Maps
          1. The most basic form of this command
          2. A more complicated use of dialer maps
      3. Dialer Interfaces (Dialer Profiles)
        1. Rotary Groups
        2. Dialer Pools
      4. Multilink PPP
      5. Snapshot DDR
        1. Useful show Commands
          1. show dialer
          2. show dialer map
          3. show isdn active
          4. show snapshot
    13. 12. Special Topics
      1. Bridging
        1. Concurrent Routing and Bridging (CRB)
        2. Integrated Routing and Bridging (IRB)
        3. Bridging show Commands
          1. show bridge
          2. show bridge group
      2. Hot Standby Routing Protocol (HSRP)
        1. Multiple-Group Hot Standby Routing
        2. Load Sharing with Hot Standby
        3. HSRP show Commands
      3. Network Address Translation (NAT)
        1. Overloading NAT Address Space
          1. Mapping incoming ports to different NAT addresses
        2. NAT show Commands
      4. Tunnels
        1. show Commands for Tunnels
      5. Encrypted Tunnels
        1. Tunnel Encryption with DSS and DES
          1. Generating keys
          2. Configuring encryption on the tunnel
        2. DES Tunnel show Commands
          1. show crypto engine connections active
          2. show crypto engine configuration
        3. IPSec Tunneling
    14. 13. Router Security
      1. The enable Password
        1. Privilege Levels
      2. Features to Disable on Your Gateway Routers
      3. Use a Warning Banner
      4. Protect VTYs with an Access List
        1. The Easy, Unscalable Way
        2. TACACS and Extended TACACS (XTACACS)
        3. AAA (TACACS+)
    15. 14. Troubleshooting and Logging
      1. ping
        1. Ping the Broadcast Address
        2. Extended ping
          1. What can we test with the source address?
      2. trace
      3. Debugging
        1. Using Debugging in Practice
          1. The debug list command
      4. Logging
        1. Configuring Logging
        2. Severity Levels
        3. Buffering Logging and Debug Output
    16. 15. Quick Reference A-H
      1. aaa accounting
      2. aaa authentication enable default
      3. aaa authentication local-override
      4. aaa authentication login
      5. aaa authentication password-prompt
      6. aaa authentication ppp
      7. aaa authentication username-prompt
      8. aaa authorization
      9. aaa authorization config-commands
      10. aaa authorization reverse-access
      11. aaa new-model
      12. absolute-timeout
      13. access-class
      14. access-enable
      15. access-list
      16. access-list rate-limit
      17. access-template
      18. activation-character
      19. aggregate-address
      20. alias
      21. area authentication
      22. area default-cost
      23. area nssa
      24. area-password
      25. area range
      26. area stub
      27. area virtual-link
      28. arp
      29. arp
      30. arp timeout
      31. async-bootp
      32. async default ip address
      33. async default routing
      34. async dynamic address
      35. async dynamic routing
      36. async mode
      37. atm address
      38. atm arp-server
      39. atm esi-address
      40. atm lecs-address
      41. atm lecs-address-default
      42. atm nsap-address
      43. atm pvc
      44. atm-vc
      45. autobaud
      46. autocommand
      47. autodetect encapsulation
      48. autohangup
      49. autoselect
      50. auto-summary
      51. backup
      52. bandwidth
      53. banner exec
      54. banner incoming
      55. banner login
      56. banner motd
      57. bgp always-compare-med
      58. bgp bestpath as-path ignore
      59. bgp bestpath med-confed
      60. bgp bestpath missing-as-worst
      61. bgp client-to-client reflection
      62. bgp cluster-id
      63. bgp confederation identifier
      64. bgp confederation peers
      65. bgp dampening
      66. bgp default local-preference
      67. bgp deterministic med
      68. bgp fast-external-fallover
      69. bgp log-neighbor-changes
      70. bgp-policy
      71. bridge acquire
      72. bridge address
      73. bridge cmf
      74. bridge crb
      75. bridge forward-time
      76. bridge-group
      77. bridge-group aging-time
      78. bridge-group circuit-group
      79. bridge-group input-address-list
      80. bridge-group input-lsap-list
      81. bridge-group input-pattern
      82. bridge-group input-type-list
      83. bridge-group output-address-list
      84. bridge-group output-lsap-list
      85. bridge-group output-pattern
      86. bridge-group output-type-list
      87. bridge-group path-cost
      88. bridge-group priority
      89. bridge-group spanning-disabled
      90. bridge hello-time
      91. bridge irb
      92. bridge max-age
      93. bridge multicast-source
      94. bridge priority
      95. bridge protocol
      96. bridge route
      97. busy-message
      98. calendar set
      99. callback forced-wait
      100. cd
      101. cdp advertise-v2
      102. cdp enable
      103. cdp holdtime
      104. cdp run
      105. cdp timer
      106. channel-group
      107. channel-group
      108. chat-script
      109. class
      110. clear
      111. client-atm-address name
      112. clock calendar-valid
      113. clock rate
      114. clock read-calendar
      115. clock set
      116. clock summer-time
      117. clock timezone
      118. clock update-calendar
      119. compress
      120. config-register
      121. configure
      122. controller
      123. copy
      124. crc
      125. custom-queue-list
      126. databits
      127. data-character-bits
      128. dce-terminal-timing enable
      129. debug
      130. default-information
      131. default-information originate
      132. default-metric
      133. default-name
      134. delay
      135. delete
      136. description
      137. dialer aaa
      138. dialer callback-secure
      139. dialer callback-server
      140. dialer caller
      141. dialer dtr
      142. dialer enable-timeout
      143. dialer fast-idle
      144. dialer-group
      145. dialer hold-queue
      146. dialer idle-timeout
      147. dialer in-band
      148. dialer isdn
      149. dialer-list
      150. dialer load-threshold
      151. dialer map
      152. dialer map snapshot
      153. dialer max-link
      154. dialer pool
      155. dialer pool-member
      156. dialer priority
      157. dialer remote-name
      158. dialer rotary-group
      159. dialer rotor
      160. dialer string
      161. dialer wait-for-carrier-time
      162. dialer watch-disable
      163. dialer watch-group
      164. dialer watch-list
      165. dir
      166. disable
      167. disconnect
      168. disconnect-character
      169. dispatch-character
      170. distance
      171. distance bgp
      172. distance eigrp
      173. distribute-list in
      174. distribute-list out
      175. domain-password
      176. downward-compatible-config
      177. down-when-looped
      178. dte-invert-txc
      179. early-token-release
      180. editing
      181. eigrp log-neighbor-changes
      182. enable
      183. enable last-resort
      184. enable password
      185. enable secret
      186. enable use-tacacs
      187. encapsulation
      188. end
      189. erase
      190. escape-character
      191. exception core-file
      192. exception dump
      193. exception memory
      194. exception protocol
      195. exception spurious-interrupt
      196. exec
      197. exec-timeout
      198. exit
      199. fair-queue
      200. fair-queue aggregate-limit
      201. fair-queue individual-limit
      202. fair-queue limit
      203. fair-queue qos-group
      204. fair-queue tos
      205. fair-queue weight
      206. fddi burst-count
      207. fddi c-min
      208. fddi cmt-signal-bits
      209. fddi duplicate-address-check
      210. fddi encapsulate
      211. fddi frames-per-token
      212. fddi smt-frames
      213. fddi tb-min
      214. fddi tl-min-time
      215. fddi token-rotation-time
      216. fddi t-out
      217. fddi valid-transmission-time
      218. flowcontrol
      219. format
      220. frame-relay adaptive-shaping
      221. frame-relay [ bc | be]
      222. frame-relay becn-response-enable
      223. frame-relay broadcast-queue
      224. frame-relay cir
      225. frame-relay class
      226. frame-relay custom-queue-list
      227. frame-relay de-group
      228. frame-relay de-list
      229. frame-relay idle-timer
      230. frame-relay interface-dlci
      231. frame-relay intf-type
      232. frame-relay inverse-arp
      233. frame-relay ip rtp header-compression
      234. frame-relay ip tcp header-compression
      235. frame-relay lmi-type
      236. frame-relay local-dlci
      237. frame-relay map
      238. frame-relay map bridge
      239. frame-relay map clns
      240. frame-relay map ip compress
      241. frame-relay map ip rtp header-compression
      242. frame-relay map ip tcp header-compression
      243. frame-relay mincir
      244. frame-relay multicast-dlci
      245. frame-relay payload-compress packet-by-packet
      246. frame-relay priority-dlci-group
      247. frame-relay priority-group
      248. frame-relay route
      249. frame-relay svc
      250. frame-relay switching
      251. frame-relay traffic-rate
      252. frame-relay traffic-shaping
      253. fsck
      254. ftp-server enable
      255. ftp-server topdir
      256. full-duplex
      257. full-help
      258. group-range
      259. half-duplex
      260. half-duplex controlled-carrier
      261. help
      262. history
      263. hold-character
      264. hold-queue
      265. hostname
      266. hssi external-loop-request
      267. hssi internal-clock
      268. hub
    17. 16. Quick Reference I-M
      1. ignore-dcd
      2. interface
      3. interface bvi
      4. interface dialer
      5. interface group-async
      6. ip access-group
      7. ip access-list
      8. ip accounting
      9. ip accounting-list
      10. ip accounting-threshold
      11. ip accounting-transits
      12. ip address
      13. ip address negotiated
      14. ip address-pool
      15. ip alias
      16. ip as-path access-list
      17. ip authentication
      18. ip bandwidth-percent eigrp
      19. ip bgp-community new-format
      20. ip bootp server
      21. ip broadcast-address
      22. ip cef
      23. ip cef traffic-statistics
      24. ip classless
      25. ip community-list
      26. ip default-gateway
      27. ip default-network
      28. ip dhcp-server
      29. ip directed-broadcast
      30. ip domain-list
      31. ip domain-lookup
      32. ip domain-name
      33. ip dvmrp accept-filter
      34. ip dvmrp auto-summary
      35. ip dvmrp default-information
      36. ip dvmrp metric
      37. ip dvmrp metric-offset
      38. ip dvmrp output-report-delay
      39. ip dvmrp reject-non-pruners
      40. ip dvmrp routehog-notification
      41. ip dvmrp route-limit
      42. ip dvmrp summary-address
      43. ip dvmrp unicast-routing
      44. ip forward-protocol
      45. ip ftp passive
      46. ip ftp password
      47. ip ftp source-interface
      48. ip ftp username
      49. ip hello-interval eigrp
      50. ip helper-address
      51. ip hold-time eigrp
      52. ip host
      53. ip http
      54. ip identd
      55. ip igmp access-group
      56. ip igmp helper-address
      57. ip igmp join-group
      58. ip igmp query-interval
      59. ip igmp query-max-response-time
      60. ip igmp query-timeout
      61. ip igmp static-group
      62. ip igmp version
      63. ip irdp
      64. ip load-sharing
      65. ip local policy route-map
      66. ip local pool
      67. ip mask-reply
      68. ip mroute
      69. ip mroute-cache
      70. ip mtu
      71. ip multicast boundary
      72. ip multicast cache-headers
      73. ip multicast helper-map
      74. ip multicast rate-limit
      75. ip multicast-routing
      76. ip multicast ttl-threshold
      77. ip name-server
      78. ip nat
      79. ip nat inside destination
      80. ip nat inside source
      81. ip nat outside source
      82. ip nat pool
      83. ip nat translation
      84. ip netmask-format
      85. ip nhrp authentication
      86. ip nhrp holdtime
      87. ip nhrp interest
      88. ip nhrp map
      89. ip nhrp map multicast
      90. ip nhrp max-send
      91. ip nhrp network-id
      92. ip nhrp nhs
      93. ip nhrp record
      94. ip nhrp responder
      95. ip nhrp server-only
      96. ip nhrp trigger-svc
      97. ip nhrp use
      98. ip ospf authentication
      99. ip ospf authentication-key
      100. ip ospf cost
      101. ip ospf dead-interval
      102. ip ospf demand-circuit
      103. ip ospf hello-interval
      104. ip ospf message-digest-key
      105. ip ospf name-lookup
      106. ip ospf network
      107. ip ospf priority
      108. ip ospf retransmit-interval
      109. ip ospf transmit-delay
      110. ip pim
      111. ip pim accept-rp
      112. ip pim message-interval
      113. ip pim minimum-vc-rate
      114. ip pim multipoint-signalling
      115. ip pim nbma-mode
      116. ip pim neighbor-filter
      117. ip pim query-interval
      118. ip pim rp-address
      119. ip pim rp-announce-filter
      120. ip pim send-rp-announce
      121. ip pim send-rp-discovery
      122. ip pim vc-count
      123. ip pim version
      124. ip policy route-map
      125. ip proxy-arp
      126. ip rarp-server
      127. ip rcmd rcp-enable
      128. ip rcmd remote-host
      129. ip rcmd remote-username
      130. ip rcmd rsh-enable
      131. ip redirects
      132. ip rip authentication
      133. ip rip receive version
      134. ip rip send version
      135. ip route
      136. ip route-cache
      137. ip router isis
      138. ip routing
      139. ip source-route
      140. ip split-horizon
      141. ip subnet-zero
      142. ip summary-address eigrp
      143. ip tcp chunk-size
      144. ip tcp compression-connections
      145. ip tcp header-compression
      146. ip tcp mtu-path-discovery
      147. ip tcp queuemax
      148. ip tcp synwait-time
      149. ip tcp window-size
      150. ip telnet source-interface
      151. ip tftp source-interface
      152. ip unnumbered
      153. ip unreachables
      154. isdn answer1, isdn answer2
      155. isdn autodetect
      156. isdn bchan-number-order
      157. isdn busy
      158. isdn caller
      159. isdn call interface
      160. isdn calling-number
      161. isdn conference-code
      162. isdn disconnect interface
      163. isdn fast-rollover-delay
      164. isdn incoming-voice
      165. isdn leased-line bri 128
      166. isdn not-end-to-end
      167. isdn nsf-service
      168. isdn outgoing-voice
      169. isdn overlap-receiving
      170. isdn send-alerting
      171. isdn sending-complete
      172. isdn service
      173. isdn spid1 (spid2)
      174. isdn switch-type
      175. isdn tei
      176. isdn tei-negotiation
      177. isdn transfer-code
      178. isdn twait-disable
      179. isdn voice-priority
      180. isis circuit-type
      181. isis csnp-interval
      182. isis hello-interval
      183. isis hello-multiplier
      184. isis lsp-interval
      185. isis metric
      186. isis password
      187. isis priority
      188. isis retransmit-interval
      189. isis retransmit-throttle-interval
      190. is-type
      191. keepalive
      192. key
      193. key chain
      194. key config-key
      195. key-string
      196. lane auto-config-atm-address
      197. lane bus-atm-address
      198. lane client
      199. lane client-atm-address
      200. lane config-atm-address
      201. lane config database
      202. lane database
      203. lane fixed-config-atm-address
      204. lane global-lecs-address
      205. lane le-arp
      206. lane server-atm-address
      207. lane server-bus
      208. line
      209. linecode
      210. link-test
      211. location
      212. logging
      213. logging buffered
      214. logging console
      215. logging facility
      216. logging history
      217. logging history size
      218. logging monitor
      219. logging on
      220. logging source-interface
      221. logging synchronous
      222. logging trap
      223. login
      224. login authentication
      225. logout-warning
      226. loopback
      227. map-class dialer
      228. map-class frame-relay
      229. map-group
      230. map-list
      231. match as-path
      232. match community-list
      233. match interface
      234. match ip address
      235. match ip next-hop
      236. match ip route-source
      237. match length
      238. match metric
      239. match route-type
      240. match tag
      241. maximum-paths
      242. metric holddown
      243. metric maximum-hops
      244. metric weights
      245. media-type
      246. member
      247. menu
      248. menu command
      249. menu text
      250. menu title
      251. mkdir
      252. modem
      253. motd-banner
      254. mrinfo
      255. mstat
      256. mtrace
      257. mtu
    18. 17. Quick Reference N-Z
      1. name elan-id
      2. name local-seg-id
      3. name preempt
      4. name server-atm-address
      5. neighbor
      6. neighbor advertisement-interval
      7. neighbor database-filter
      8. neighbor default-originate
      9. neighbor description
      10. neighbor distribute-list
      11. neighbor filter-list
      12. neighbor maximum-prefix
      13. neighbor next-hop-self
      14. neighbor password
      15. neighbor peer-group
      16. neighbor prefix-list
      17. neighbor remote-as
      18. neighbor route-map
      19. neighbor route-reflector-client
      20. neighbor send-community
      21. neighbor shutdown
      22. neighbor soft-reconfiguration inbound
      23. neighbor timers
      24. neighbor update-source
      25. neighbor version
      26. neighbor weight
      27. net
      28. network
      29. network backdoor
      30. network weight
      31. nrzi-encoding
      32. ntp access-group
      33. ntp authenticate
      34. ntp authentication-key
      35. ntp broadcast
      36. ntp broadcast client
      37. ntp broadcastdelay
      38. ntp disable
      39. ntp master
      40. ntp peer
      41. ntp server
      42. ntp source
      43. ntp trusted-key
      44. ntp update-calendar
      45. offset-list
      46. ospf auto-cost reference-bandwidth
      47. ospf log-adj-changes
      48. output-delay
      49. padding
      50. parity
      51. passive-interface
      52. password
      53. peer default ip address
      54. peer neighbor-route
      55. physical-layer
      56. ping
      57. ppp
      58. ppp authentication
      59. ppp bridge ip
      60. ppp chap
      61. ppp compress
      62. ppp multilink
      63. ppp quality
      64. ppp reliable-link
      65. ppp use-tacacs
      66. priority-group
      67. priority-list
      68. privilege level (line)
      69. privilege level (global)
      70. prompt
      71. pulse-time
      72. pvc
      73. queue-list
      74. radius-server
      75. redistribute
      76. refuse-message
      77. reload
      78. rename
      79. ring-speed
      80. rlogin
      81. rmdir
      82. route-map
      83. router
      84. rsh
      85. rxspeed
      86. send
      87. service
      88. service compress-config
      89. service linenumber
      90. service-module 56k
      91. service-module t1
      92. service timestamps
      93. session-limit
      94. session-timeout
      95. set as-path
      96. set automatic-tag
      97. set community
      98. set default interface
      99. set interface
      100. set ip default next-hop
      101. set ip precedence
      102. set ip next-hop
      103. set level
      104. set local-preference
      105. set metric
      106. set metric-type
      107. set metric-type internal
      108. set origin
      109. set-overload-bit
      110. set tag
      111. setup
      112. set weight
      113. show
      114. shutdown
      115. smt-queue-threshold
      116. snapshot
      117. snmp-server
      118. snmp-server chassis-id
      119. snmp-server community
      120. snmp-server contact
      121. snmp-server enable traps
      122. snmp-server engine-id
      123. snmp-server group
      124. snmp-server host
      125. snmp-server location
      126. snmp-server packetsize
      127. snmp-server queue-length
      128. snmp-server system-shutdown
      129. snmp-server tftp-server-list
      130. snmp-server trap-source
      131. snmp-server trap-timeout
      132. snmp-server user
      133. snmp-server view
      134. snmp trap link-status
      135. source-address
      136. speed
      137. squeeze
      138. squelch
      139. sscop cc-timer
      140. sscop keepalive-timer
      141. sscop max-cc
      142. sscop poll-timer
      143. sscop rcv-window
      144. sscop send-window
      145. standby authentication
      146. standby ip
      147. standby preempt
      148. standby priority
      149. standby timers
      150. standby track
      151. stopbits
      152. summary-address
      153. synchronization
      154. table-map
      155. tacacs-server attempts
      156. tacacs-server authenticate
      157. tacacs-server directed-request
      158. tacacs-server extended
      159. tacacs-server host
      160. tacacs-server key
      161. tacacs-server last-resort
      162. tacacs-server notify
      163. tacacs-server optional-passwords
      164. tacacs-server retransmit
      165. tacacs-server timeout
      166. terminal editing
      167. terminal escape-character
      168. terminal history
      169. terminal length
      170. terminal monitor
      171. tftp-server
      172. timers basic
      173. timers bgp
      174. timers spf
      175. trace
      176. traffic-shape adaptive
      177. traffic-shape group
      178. traffic-shape rate
      179. traffic-share
      180. transport
      181. tunnel checksum
      182. tunnel destination
      183. tunnel key
      184. tunnel mode
      185. tunnel sequence-datagrams
      186. tunnel source
      187. txspeed
      188. undebug
      189. undelete
      190. username
      191. vacant-message
      192. validate-update-source
      193. variance
      194. verify
      195. version
      196. vty-async
      197. vty-async dynamic-routing
      198. vty-async header-compression
      199. vty-async keepalive
      200. vty-async mtu
      201. vty-async ppp authentication
      202. vty-async ppp use-tacacs
      203. width
      204. write
    19. Index
    20. Colophon