The commands in this appendix are organized in the following sections:

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1 The commands in this appendix are organized in the following sections: General s Comparison of Configuration File s General Configuration s General Interface Configuration s General IP s IP Configuration s WAN Configuration s CLNS Configuration s

2 A P P E N D I X F Summary of BSCI Router s This appendix contains a listing of some of the Cisco router IOS commands you might find in this book, organized in various categories. NOTE This appendix lists only the command; parameters are not included. For details about the parameters and how the command works, see the relevant chapters in this book and refer to the Reference Manuals at General s Table F-1 contains some Cisco router EXEC IOS commands. Table F-1 General s clear access-list counters clear counters tunnel clear logging configure terminal copy running-config startup-config debug debug eigrp neighbors debug eigrp packets erase startup-config Clears packet counters in extended access lists. Clears the counters displayed in the show interface tunnel command. Clears the logging buffer. Enters configuration mode. Copies configuration from random-access memory (RAM) to nonvolatile random-access memory (NVRAM) (overwrites). Starts the console display of the events on the router. Starts the console display of the Enhanced Interior Gateway Routing Protocol (EIGRP) neighbor interaction. Starts the console display of EIGRP packets, both sent and received. Erases the configuration in NVRAM. continues

3 4 Appendix F: Summary of BSCI Router s Table F-1 General s (Continued) ping reload setup show access-lists show cdp interface show cdp neighbors show cdp neighbors detail show controller show frame-relay map show interfaces show line show logging show route-map show running-config show startup-config show version telnet traceroute Sends an echo and expects an echo reply. Extended ping allows specification of the source address and allows ping for protocols other than Internet Protocol (IP). Reloads the operating system. Enters a prompted dialog to establish an initial configuration. Displays the contents of all access lists configured. Displays information about interfaces configured to run Cisco Discovery Protocol (CDP). Displays a summary of CDP information received from neighbors. Displays detailed CDP information received from neighbors. Displays the Layer 1 information about an interface (including cable type and data circuit-terminating equipment / data terminal equipment [DCE/DTE] status for serial interfaces). Displays the mapping between network layer addresses and data-link connection identifiers (DLCIs), both static and dynamic mappings. Displays information about interfaces or an interface, including the state of the interface and queuing information. Displays information about line (console, auxiliary [aux], or virtual terminal [vty]) configuration. Displays the logging buffer, including logged output of debug commands. Displays configured route maps; includes number of matches. Displays the active configuration (in RAM). Use begin to specify where in the configuration you want to begin the display (for example, show running-config begin interface starts the display at the first interface command). Displays the backup configuration (in NVRAM). Displays configuration of system hardware, software version, and configuration register value. Connects to a host that supports Telnet. Traces the route that packets are taking through the network; extended traceroute allows specification of the source address.

4 Comparison of Configuration File s 5 Comparison of Configuration File s With Cisco IOS Software Release 12.0, commands used to copy and transfer configuration and system files have changed to conform to Cisco IOS File System (IFS) specifications. The old commands continue to perform their normal functions in the current release, but support for these commands will cease in a future release. Table F-2 contains the old and new commands used for configuration file movement and management. Table F-2 Comparison of Configuration File s Old s configure network (pre-ios Release 10.3) copy rcp running-config copy tftp running-config configure overwrite-network (pre-ios Release 10.3) copy rcp startup-config copy tftp startup-config show configuration (pre-ios Release 10.3) New s copy ftp: system:running-config copy rcp: system:running-config copy tftp: system:running-config copy ftp: nvram:startup-config copy rcp: nvram:startup-config copy tftp: nvram:startup-config more nvram:startup-config show startup-config write erase (pre-ios Release 10.3) erase nvram: erase startup-config write memory (pre-ios Release 10.3) copy running-config startup-config write network (pre-ios Release 10.3) copy running-config rcp copy running-config tftp write terminal (pre-ios Release 10.3) copy system:running-config nvram: startup-config copy system:running-config ftp: copy system:running-config rcp: copy system:running-config tftp: more system:running-config show running-config

5 6 Appendix F: Summary of BSCI Router s General Configuration s Table F-3 contains some Cisco IOS commands used for general router configuration. Table F-3 General Configuration s cdp timer config-register default interface enable password enable secret exec-timeout 0 0 hostname interface ip domain lookup line logging synchronous login match password route-map service password-encryption set Specifies the interval at which CDP updates are sent. Changes the value of the configuration register. Erases the configuration on the specified interface. Specifies the enable password for the router. Specifies the enable secret password for the router. Sets the timeout for a line EXEC session to zero, preventing the session from timing out and disconnecting. Specifies the router s name. Enters interface configuration mode (ethernet, serial, loopback, and so on). Also used to enter subinterface configuration mode. For virtual interfaces (loopback, tunnel, dialer, and so on), the first time that this command is used for a specific virtual interface, it creates that virtual interface. Enables Domain Name Service (DNS) lookup; use no ip domain lookup to disable DNS lookup. Enters line configuration mode (console, aux, vty). When used on a line (console, aux, vty), causes input to be redisplayed on a single display line, at the end of each console message that interrupts the input. Enables password checking on a line. Defines conditions to be checked within a route map. Specifies the password for a line. Defines a route map and enters configuration mode for the route map. Causes all passwords to be stored and displayed in encrypted form. Defines actions to be followed if there is a match within a route map.

6 General IP s 7 General Interface Configuration s Table F-4 contains some Cisco IOS commands for interface configuration. Table F-4 General Interface Configuration s bandwidth clock rate interface interface serial multipoint point-to-point shutdown Sets bandwidth of interface (used by some routing protocols, including Open Shortest Path First [OSPF], EIGRP; also used for load calculations) Sets clock rate in bits per second (used if interface is DCE) Enters interface configuration mode (or subinterface mode, if already in interface mode) Enters subinterface configuration mode for a serial interface, and defines whether it is a multipoint or point-to-point subinterface Administratively shuts down an interface (use no shutdown to bring up the interface) General IP s Table F-5 contains some Cisco IOS EXEC commands related to IP. Table F-5 General IP s clear ip bgp clear ip bgp soft clear ip bgp soft in clear ip bgp soft out clear ip bgp peer-group clear ip dhcp binding clear ip dhcp conflict Causes a hard reset of Border Gateway Protocol (BGP) neighbors. Use the * option to clear all sessions. Causes the BGP router to do a soft reconfiguration of both inbound and outbound updates. Causes the BGP router to use the stored unfiltered table to generate new inbound updates. If route refresh is supported, a dynamic soft reset of inbound BGP updates is done, without requiring any stored information. Causes a soft reset of BGP outbound updates. Resets the BGP connections for all members of a BGP peer group. Deletes an automatic address binding from the Dynamic Host Configuration Protocol (DHCP) database. Clears an address conflict from the DHCP database. continues

7 8 Appendix F: Summary of BSCI Router s Table F-5 General IP s (Continued) clear ip dhcp server statistics Resets all DHCP server counters to 0. clear ip ospf process clear ip prefix-list clear ip route clear ip route dhcp clear ipv6 ospf clear isis debug dhcp detail debug eigrp neighbors debug eigrp packets debug ip bgp debug ip bgp ipv4 unicast debug ip bgp updates debug ip dhcp server debug ip eigrp debug ip eigrp summary debug ip ospf adj Restarts the OSPF routing process, including selecting the OSPF router ID. Resets the hit count shown on IP prefix list entries. Clears the IP routing table. Use the * option to delete all routes. Removes routes from the routing table added by the Cisco IOS DHCP server and relay agent. Triggers shortest path first (SPF) recalculation and repopulation of the Routing Information Base (RIB). Forces Intermediate System-to-Intermediate System (IS-IS) to refresh its link-state database and recalculate all routes. Displays the DHCP packets that were sent and received. Displays neighbors discovered by EIGRP and the contents of the hello packets. Displays the types of EIGRP packets sent and received. A maximum of 11 packet types can be selected for individual or group display. Output includes indication of when EIGRP authentication is being used. Starts the console display of BGP-related events on the router, according to the option specified (dampening, events, keepalives, updates). Starts the console display of IP Version 4 (IPv4) BGP unicast events, including the states that two BGP routers go through to establish a session. Starts the console display of BGP updates. Displays the server side of the DHCP interaction. Starts the console display of the IP EIGRP packets that are sent and received on an interface. Displays a summarized version of IP EIGRP activity. It also displays filtering and redistribution numbers, and neighbors and distance information. Starts the console display of OSPF adjacency-related events on the router.

8 General IP s 9 Table F-5 General IP s (Continued) debug ip ospf events debug ip ospf lsa-generation debug ip ospf packet debug ip ospf spf debug ip packet debug ip policy debug ip rip debug ip routing debug isis adj-packets debug isis update-packets mrinfo release dhcp renew dhcp show clns show clns interface show clns is-neighbors show clns neighbors Starts the console display of OSPF-related events, such as adjacencies, flooding information, designated router selection, and SPF calculation on the router. Starts the console display of OSFP link-state advertisement (LSA) generation-related events on the router. Starts the console display of each OSPF packet received. Starts the console display of SPF calculation-related events on the router. Starts the console display of IP packet events. Starts the console display of IP policy routing events. Starts the console display of IP Routing Information Protocol (RIP)-related events on the router. Starts the console display of IP routing-related events on the router. Displays IS-IS adjacency-related packets. Displays IS-IS update-related packets. Displays information about multicast routers that are peering with the local router (if no address is specified) or with the specified router. For interfaces configured to be DHCP clients, releases the DCHP lease for the interface and deconfigures the IP address for the interface. For interfaces configured to be DHCP clients, renews the DHCP lease. Displays general information about the Connectionless Network Service (CLNS) network. Displays CLNS-specific information about interfaces running IS-IS. Displays IS-IS related information for IS-IS router adjacencies. Displays Intermediate System (IS) and End System (ES) neighbors. continues

9 10 Appendix F: Summary of BSCI Router s Table F-5 General IP s (Continued) show clns protocol show clns route show ip access-list show ip bgp show ip bgp neighbors show ip bgp rib-failure show ip bgp summary show ip dhcp binding show ip dhcp conflict show ip dhcp database show ip dhcp import show ip dhcp-relay information trusted-sources show ip dhcp server statistics show ip eigrp interfaces show ip eigrp neighbors show ip eigrp topology show ip eigrp traffic show ip igmp group show ip igmp interface Displays information for the specific IS-IS processes in the router. Displays the IS-IS Level 2 routing table. Displays the IP access lists configured. Displays the BGP table; specify a network number to get more specific information about a particular network. Displays information about the Transmission Control Protocol (TCP) and BGP connections to neighbors. Displays BGP routes that were not installed in the RIB, and the reason they were not installed. Displays the status of all BGP connections. Displays a list of all bindings created on a specific DHCP server. Displays a list of all address conflicts recorded by a specific DHCP server. Displays recent activity in the DHCP database. Displays the option parameters that were imported into the DHCP server database. Displays all interfaces configured to be a trusted source for the DHCP relay information option. Displays server statistics and counts of the number of messages sent and received. Displays information about interfaces configured for IP EIGRP. Displays the neighbors discovered by IP EIGRP. Displays the IP EIGRP topology table; use the all-links keyword to display all of the topology table, including those routes that are not feasible successors. Displays the number of IP EIGRP packets sent and received. Displays a list of multicast groups known to the router. Displays Internet Group Management Protocol (IGMP)-related information about an interface, including which version of IGMP is currently active on an interface.

10 General IP s 11 Table F-5 General IP s (Continued) show ip interface show ip mroute show ip ospf show ip ospf border-routers show ip ospf database show ip ospf database nssaexternal show ip ospf interface show ip ospf neighbor show ip ospf virtual-links show ip pim interface show ip pim neighbor show ip pim rp show ip policy show ip prefix-list Displays IP-specific information about an interface, including whether access lists are applied. Displays the IP multicast routing table. Displays OSPF-specific parameters on the router, including the router ID, OSPF timers, the number of times the SPF algorithm has been executed, and LSA information. Displays the internal OSPF routing table entries to Area Border Routers (ABRs) and Autonomous System Boundary Routers (ASBRs). Displays the contents of the OSPF topological database maintained by the router. This command also shows the router ID and OSPF process ID. Use additional keywords to view detailed information in each part of the database. Display specific details of each LSA type 7 update in database. Displays details of the OSPF protocol on the interfaces, including the area, state, timers, neighbors, router ID, and network type. Displays a list of OSPF neighbors; use the detail keyword to display more details of each neighbor (including priority and state). Displays the OSPF virtual links. Displays information about interfaces configured for Protocol Independent Multicast (PIM). Displays the discovered PIM neighbors. Displays rendezvous point (RP) information about active multicast groups. Displays route maps configured on the routers interfaces for policy routing. Displays information on all prefix lists; use the detail keyword to include the description and hit count. Other parameters can be used to display other details or specific parts of the prefix lists. continues

11 12 Appendix F: Summary of BSCI Router s Table F-5 General IP s (Continued) show ip protocols show ip route show ip route dhcp show ip route eigrp show ip route isis show ip route ospf show ip rpf show ipv6 ospf show ipv6 ospf database show ipv6 ospf database database-summary show ipv6 ospf database link show ipv6 ospf database prefix show ipv6 ospf interface show ipv6 ospf neighbor show ipv6 route show isis database show isis spf-log show isis topology show isis route Displays the IP routing protocols that are running. Displays the IP routing table; use other keywords to display specific parts of the routing table. Displays the routes added to the routing table by the Cisco IOS DHCP server and relay agent. Displays the current EIGRP entries in the IP routing table. Displays the current IS-IS entries in the IP routing table. Displays the current OSPF entries in the IP routing table. Displays Reverse Path Forwarding (RPF) information for the RP or source specified. Displays general information about OSPF for IP Version 6 (IPv6) processes Displays OSPF for IPv6 database. Displays a summary of the OSPF for IPv6 database. Displays OSPF for IPv6 type 8 LSAs. Displays OSPF for IPv6 type 9 LSAs. Displays OSPF for IPv6-related interface information. Use the brief keyword to specify that a brief amount of information be displayed. Displays information about IPv6 OSPF neighbors. Use the detail keyword to display detailed information. Displays the IPv6 routing table. Displays the contents of the IS-IS link-state database. Displays how often and why the router has run a full SPF calculation. Displays the IS-IS Level 1 and Level 2 topology tables, which show the least-cost IS-IS path to the intermediate systems. Displays the IS-IS Level 1 routing table.

12 IP Configuration s 13 IP Configuration s Table F-6 contains some Cisco IOS configuration commands related to IP configuration. Table F-6 IP Configuration s accept-lifetime access-class access-list aggregate-address area authentication area default-cost area nssa area range area stub area virtual-link auto-cost reference-bandwidth auto-summary For EIGRP message digest 5 (MD5) authentication, this command specifies the time period during which this key will be accepted for use on received packets. Activates an access list on a line (console, aux, vty) to restrict incoming and outgoing connections. Defines an access list: IP standard = numbers 1 to 99 or 1300 to 1999; IP extended = numbers 100 to 199 or 2000 to Creates an aggregate, or summary, entry in the BGP table. Enables authentication for an OSPF area. Defines the cost of the default route sent into an OSPF stub area; the default is 1. Defines the OSPF area as a not-so-stubby area (NSSA). Defines route summarization of intra-area routes on an OSPF ABR. Defines the OSPF area as a stub area; use the no-summary keyword on the ABR to define a totally stubby area. Defines an OSPF virtual link across an area to another OSPF router. Defines the numerator of the OSPF cost formula (numerator/ bandwidth), in megabits per second. The default is 100. Enables automatic route summarization. For BGP, determines how redistributed routes are handled. Use no auto-summary to turn off automatic summarization for RIP Version 2 (RIPv2) and EIGRP. bgp always-compare-med Forces the comparison of the BGP multi-exit-discriminator (MED) attribute to be done, even if the neighboring autonomous system is not the same for all the routes considered. continues

13 14 Appendix F: Summary of BSCI Router s Table F-6 IP Configuration s (Continued) bgp bestpath missing-as-worst bgp cluster-id bgp default local-preference bootfile client-identifier client-name default-information originate default-metric default-router distance distance bgp distance eigrp distance ospf distribute-list dns-server domain-name Forces BGP routes without the MED attribute to have a MED value of infinity, making the route the least preferred. Configures the cluster ID; used if a BGP cluster has more than one route reflector (RR). Defines the default BGP local-preference attribute value for all BGP routes. For DHCP, specifies the name of the default boot image for a DHCP client. For DHCP, specifies the unique identifier for a Microsoft DHCP client, for which a manual binding is to be created. For DHCP, specifies the name of the client for which a manual binding is to be created. Generates a default external route into an OSPF routing domain. The optional keyword always advertises the default route regardless of whether the software has a default route in the routing table. Defines the seed metric that this routing protocol uses before redistributing a route. For DHCP, specifies the IP address of the default router for a DHCP client. Defines the administrative distance that will be used for this routing protocol (for all routing protocols except BGP and EIGRP). Defines the administrative distance that will be used for BGP. Defines the administrative distance that will be used for EIGRP. Defines the administrative distance that will be used for OSPF, based on route type. Activates an access list to be used to filter outbound or inbound routing updates for a routing protocol. For DHCP, specifies the IP address of a DNS server that is available to a DHCP client. For DHCP, specifies the domain name for the client.

14 IP Configuration s 15 Table F-6 IP Configuration s (Continued) eigrp log-neighbor-changes eigrp stub hardware-address host import all ip access-group ip address ip address dhcp ip authentication key-chain eigrp ip authentication mode eigrp md5 ip bandwidth-percent eigrp ip classless ip community-list ip dhcp bootp ignore ip dhcp client ip dhcp conflict logging Enables the logging of changes in EIGRP neighbor adjacencies. Configures a router as an EIGRP stub. For DHCP, specifies a hardware address for a client for which a manual binding is to be created. For DHCP, specifies the IP address and subnet mask of the client for which a manual binding is to be created. For DHCP, imports DHCP option parameters into the DHCP server database. Used for remote DHCP pools. Activates an access list on an interface. Assigns an IP address and subnet mask to an interface. Use the secondary option to assign a secondary address and mask to the interface. Configures a Cisco IOS device to be a DHCP client and obtain an interface address dynamically from a DHCP server. Specifies the EIGRP authentication key chain to be used on an interface. Specifies that the interface will use MD5 authentication for EIGRP. Defines the maximum percentage of bandwidth that EIGRP packets will be capable of utilizing on an interface. Specifies that if a packet is received with a destination address within an unknown subnet of a directly attached network, the router will match it to the default route and forward it to the next hop specified by the default route. Creates a community list for BGP and controls access to the list. Configures the DHCP server to selectively ignore and not reply to received BOOTP requests. Configures options on interfaces that are to be DHCP clients; must be configured before entering the ip address dhcp command on the interface. Enables DHCP conflict logging. Disable with the no form of the command if a DHCP database agent is not configured. continues

15 16 Appendix F: Summary of BSCI Router s Table F-6 IP Configuration s (Continued) ip dhcp database ip dhcp excluded-address ip dhcp information check ip dhcp information option ip dhcp information policy ip dhcp ping packets ip dhcp ping timeout ip dhcp pool ip dhcp relay information trust-all ip dhcp relay information trusted ip dhcp smart-relay ip default-gateway ip default-network Specifies the DHCP database agent and the interval between database updates and database transfers. Specifies the IP addresses that the DHCP server should not assign to DHCP clients. For DHCP relay agent, configures DHCP to check that the relay agent information option in forwarded BOOTREPLY messages is valid. Enabled by default. For DHCP relay agent, enables the system to insert the DHCP relay agent information option (82) in forwarded BOOTREQUEST messages to a DHCP server. Disabled by default. For DHCP relay agent, configures the reforwarding policy for the relay agent (what the relay agent should do if a message already contains relay information). Specifies the number of ping packets the DHCP server sends to a pool address before assigning the address to a requesting client; the default is 2. Specifies the amount of time the DHCP server waits for a ping reply from an address pool. The default is 2 seconds (2000 milliseconds). Creates a name for the DCHP server address pool and enters DHCP pool configuration mode. For DHCP relay agent, configures all interfaces on a router as trusted sources of the DHCP relay information option. For DHCP relay agent, configures an interface on a router as a trusted source of the DHCP relay information option. For DHCP, used if you have secondary addresses on the interface where the User Datagram Protocol (UDP) broadcasts that you want to forward to the DHCP server are being received and you want the router to step through each IP network when forwarding DHCP requests. Defines a default gateway (router); used on routers or communication servers that have IP routing turned off. The router or communication server acts just like a host on the network. Defines a default route that will be distributed to other routers.

16 IP Configuration s 17 Table F-6 IP Configuration s (Continued) ip directed-broadcast ip domain-lookup ip forward-protocol ip hello-interval eigrp ip helper-address ip hold-time eigrp ip host ip igmp join-group ip igmp static-group ip multicast-routing ip ospf area ip ospf authentication ip ospf authentication-key ip ospf cost ip ospf message-digest-key ip ospf network Enables the translation of directed broadcasts to physical broadcasts. In Cisco IOS Release 12.0 and later, the no ip directed-broadcast command is on by default. Turns on DNS lookups; disabled with the no ip domain-lookup command. Defines the protocols that will be forwarded with the ip helperaddress command. Defines the interval at which EIGRP hello packets are sent. Defines an address to which the router will forward certain broadcasts (this is usually a server address) that are sent to this interface. Defines the time that a router will consider an EIGRP neighbor up without receiving a hello (or some other packet). Defines a static hostname to IP address mapping. Configures the router to join the specified multicast group; the router accepts multicast packets in addition to forwarding them. Configures the router itself as a statically connected member of the multicast group. The router does not accept the group s packets itself, but only forwards them. Enables IP multicast on a router. Enables OSPF directly on an interface. Specifies the type of OSPF authentication to use on the interface. Assigns a password to be used for OSPF authentication on an interface. Defines the outgoing OSPF cost of an interface. Specifies the key ID and key to be used for OSPF MD5 authentication on an interface. Defines the OSPF network mode configuration (broadcast, non-broadcast, point-to-multipoint [non-broadcast], or point-to-point). continues

17 18 Appendix F: Summary of BSCI Router s Table F-6 IP Configuration s (Continued) ip ospf priority ip pim send-rp-announce ip pim send-rp-discovery ip pim sparse-dense-mode ip pim sparse-mode ip pim spt-threshold ip policy route-map ip prefix-list ip prefix-list description ip prefix-list sequence-number ip rip send version ip rip receive version ip route ip route-cache policy ip router isis Defines the OSPF priority on an interface (the default is 1); used to determine which router will be the designated router (DR) on a multiaccess network. Configured on a router that you want to be a rendezvous point (RP). This router sends an auto-rp message to the address, announcing the router as a candidate RP for the groups in the range described by the access list specified in this command, only within a hop radius dictated by the scope value specified in this command. Configures a router as an RP-mapping agent; it listens to the address and sends a RP-to-group mapping message to the address, only within a hop radius dictated by the scope value specified in this command. Other Protocol Independent Multicast (PIM) routers listen to the address to automatically discover the RP. Enables the interface on the router to operate in sparse mode for sparse mode groups (those with known RPs) and in dense mode for other groups. Enables PIM sparse mode operation on the selected interface. Controls the switchover from the shared tree to source tree in PIM sparse mode. Defines a route map to use for policy routing on an interface. Defines a prefix list. Defines a description for a prefix list. Reenables the automatic generation of sequence numbers for a prefix list (automatic generation is the default); use the no form of this command to disable the automatic generation of sequence numbers. Specifies the version of RIP packets sent, on a per interface basis. Specifies the version of RIP packets to accept, on a per interface basis. Defines a static route to an IP destination. Enables fast switching of IP policy routing on an interface. Enables an interface to use IS-IS to distribute its IP routing information. ip subnet-zero Allows use of subnets with all subnet bits equal to 0.

18 IP Configuration s 19 Table F-6 IP Configuration s (Continued) ip summary-address eigrp ip summary-address rip ip unnumbered ipv6 address ipv6 cef ipv6 ospf area ipv6 ospf cost ipv6 ospf priority ipv6 route ipv6 router ospf ipv6 unicast-routing is-type isis priority isis circuit-type Defines IP EIGRP route summarization on an interface. Defines RIP route summarization on an interface. Enables IP processing on a serial interface without assigning an explicit address to the interface. Assigns an IPv6 address to an interface and enables IPv6 processing on the interface. Enables Cisco Express Forwarding (CEF) for IPv6 (CEFv6). Enables OSPF for IPv6 on an interface. Specifies the OSPF cost of sending an IPv6 packet on an interface. Specifies the OSPF for IPv6 priority, used in DR election. Defines an IPv6 static route. Enables an OSPF Version 3 (OSPFv3) process on a router. Enables IPv6 routing on a router. Defines which IS-IS level (level-1 level-1-2 level-2-only) at which a router will operate. Changes the IS-IS router priority on the interface to influence the designated IS (DIS) election. Defines which level of IS-IS adjacency (level-1 level-1-2 level- 2-only) will be established over an interface. isis metric Defines the IS-IS metric to be used on an interface. The default is 10. key key chain key string lease match community Specifies the EIGRP key ID and enters configuration mode for that key. Enters configuration mode for an EIGRP key chain, used for authentication. Specifies the EIGRP key string (password) for EIGRP authentication. For DHCP, specifies the duration of the lease. Defines routes to be matched in a route map as those with a BGP community attribute value as specified in a community list. continues

19 20 Appendix F: Summary of BSCI Router s Table F-6 IP Configuration s (Continued) match interface match ip address match ip next-hop match ip route-source match length match metric match route-type max-lsa maximum-paths metric metric weights neighbor neighbor distribute-list neighbor ebgp-multihop Defines routes to be matched in a route map as those that have a next hop out of one of the interfaces specified. Defines routes to be matched in a route map, using IP standard or extended access lists. Defines routes to be matched in a route map as those that have a next-hop router address permitted by one of the access lists specified, using IP standard or extended access lists. Defines routes to be matched in a route map as those that have been advertised by routers and access servers that have an address permitted by one of the access lists specified, using IP standard or extended access lists. Defines minimum and maximum packet length values to be matched in a route map. Defines routes to be matched in a route map as those routes that have the metric specified. Defines routes to be matched in a route map as those of the specified type. Specifies the maximum number of received OSPF LSAs that the router keeps in its link-state database (LSDB). Controls the maximum number of equally good routes that an IP routing protocol will keep in the routing table. For IS-IS, defines the IS-IS metric to be used on all interfaces. Allows tuning of the EIGRP metric calculations. Statically defines OSPF neighbor relationships over a nonbroadcast multiaccess (NBMA) network in nonbroadcast mode. Distributes BGP neighbor information, as specified in an access list. Allows the router to accept and attempt BGP connections to external peers residing on networks that are not directly connected.

20 IP Configuration s 21 Table F-6 IP Configuration s (Continued) neighbor next-hop-self neighbor password neighbor peer-group neighbor prefix-list neighbor remote-as neighbor route-map neighbor route-reflector-client neighbor send-community neighbor shutdown neighbor soft-reconfiguration inbound neighbor update-source loopback neighbor weight net netbios-name-server netbios-node-type Forces all BGP updates for this neighbor to be advertised with the source IP address of the update as the next-hop address for each network it advertises. Enables MD5 authentication on the TCP connection between two BGP peers and specifies the password to be used. Creates a BGP peer group; assigns neighbors as part of a peer group. Identifies a prefix list to be used to filter BGP routes from or to a peer router. Identifies a peer router with which this router will establish a BGP session. Applies a route map to incoming or outgoing BGP routes. Defines the router as a BGP route reflector and identifies the specified neighbor as its route reflector client. Specifies that the BGP communities attribute should be sent to a BGP neighbor. Disables (administratively shuts down) an existing BGP neighbor or neighbor peer group. Forces the router to store all received BGP updates without modification so that they can be used to do an inbound soft reconfiguration. Forces BGP sessions to use the address of the specified operational loopback interface as the source address for BGP connections to this neighbor. Defines the BGP weight attribute to a neighbor connection. Assigns a network-entity title (NET) to the router to identify it for IS-IS. For DHCP, specifies the NetBIOS WINS server that is available to a Microsoft DHCP client. For DHCP, specifies the NetBIOS node type for a Microsoft DHCP client. continues

21 22 Appendix F: Summary of BSCI Router s Table F-6 IP Configuration s (Continued) network For RIP, EIGRP, and OSPF, defines the networks on which the routing protocol will run. For EIGRP and OSPF a wildcard mask may be used to identify specific networks. Starts up the routing protocol on all interfaces that are in that network and allows the router to advertise that network. For OSPF, this command also defines the area that the interface will be in. For BGP, this command allows BGP to advertise a route if it is already in the routing table (use the neighbor command to start up BGP). For BGP, this command may define the subnet mask of the route. For DHCP, specifies the subnet/network number and mask of the DHCP address pool. next-server option passive-interface redistribute redistribute maximum-prefix router bgp router eigrp router-id router isis router odr router ospf For DHCP, specifies the next server in the boot process of a DHCP client. For DHCP, specifies DHCP server options. Prevents routing updates from this routing protocol from being generated on an interface. Use the default option to set all interfaces to passive, and then use the no passive-interface command to enable routing on individual interfaces. Defines the protocol that will be redistributed into this routing protocol; the protocol can include static and connected routes. Defines the maximum number of prefixes that will be redistributed into OSPF or IS-IS. Defines BGP as an IP routing protocol and enters configuration mode for that protocol. Defines EIGRP as an IP routing protocol and enters configuration mode for that protocol. Specifies the OSPF router ID to use for this OSPF process. Defines Integrated IS-IS as an IP routing protocol and enters configuration mode for that protocol. Configures on-demand routing (ODR), on the ODR hub router. Defines OSPF as an IP routing protocol and enters configuration mode for that protocol.

22 IP Configuration s 23 Table F-6 IP Configuration s (Continued) router rip send-lifetime service dhcp set as-path set automatic-tag set community set default interface set interface set ip default next-hop set ip next-hop set ip precedence set ip tos set level set local-preference set metric set metric-type set origin set tag Defines RIP as an IP routing protocol and enters configuration mode for that protocol. For EIGRP MD5 authentication, specifies the time period during which this key can be used for sending packets. Enables the DHCP server and relay agent, if they have been disabled with the no service dhcp command. Modifies an autonomous system path for BGP routes. Automatically computes the BGP tag value. Sets the BGP communities attribute within a route map. Defines the default interface to which packets that have no explicit route to the destination should be forwarded from a route map. Defines the interface to which packets should be forwarded from a route map. Defines the default next-hop address to which packets that have no explicit route to the destination should be forwarded from a route map. Defines the next-hop address to which packets should be forwarded from a route map. Sets the IP precedence in the IP packets from a route map. Sets the IP type of service (ToS) value in the IP packets from a route map. Indicates at what level or type of area to import routes into (for IS-IS and OSPF routes). Specifies a BGP local preference value for the autonomous system path. Sets the metric value for a routing protocol. For BGP, the metric is the MED. Sets the metric type for the destination routing protocol. Specifies the BGP origin code. Specifies the tag value for the destination routing protocol. continues

23 24 Appendix F: Summary of BSCI Router s Table F-6 IP Configuration s (Continued) set weight summary-address synchronization timers active-time timers basic timers throttle spf traffic-share tunnel destination tunnel mode ipv6ip tunnel source variance version Specifies the BGP weight value. For OSPF, defines route summarization of external routes on an OSPF ASBR. For IS-IS, defines IP route summarization and may specify the area type into which the routes will be summarized. Enables BGP synchronization. Defines the EIGRP active-state time limit (it defaults to 3 minutes). Specifies ODR timers. Enables the OSPF throttling feature so that the SPF calculations can be potentially delayed during network instability. Defines how traffic is distributed among multiple unequal cost EIGRP routes for the same destination network. Specifies the destination IP address of a tunnel interface. Enables a manual IPv6 tunnel on a tunnel interfaces with IPv6 as the passenger protocol, and IPv4 as both the encapsulation and transport protocol. Specifies the source IP address of a tunnel interface. Defines the multiplier used for EIGRP unequal-cost load balancing. Defines the version of RIP packets to send and accept. WAN Configuration s Table F-7 contains some Cisco IOS configuration commands related to WAN interface configuration. Table F-7 WAN Configuration s encapsulation frame-relay interface-dlci frame-relay intf-type dce Defines the data-link encapsulation for an interface (ppp, hdlc, x25 [dte is the default, can use dce], frame-relay, and so on). Defines the Frame Relay DLCI number on a subinterface. Defines an interface as a Frame Relay DCE device.

24 CLNS Configuration s 25 Table F-7 WAN Configuration s (Continued) frame-relay inverse-arp frame-relay map clns frame-relay map ip frame-relay switching frame-relay route Enables Frame Relay Inverse Address Resolution Protocol (Inverse ARP) on an interface. Use the no form of the command to turn off Inverse ARP on an interface. Maps a next-hop CLNS address to a Frame Relay permanent virtual circuit (PVC). Maps a next-hop IP address to a Frame Relay PVC. Enables Frame Relay switching on the router. Defines a static entry in the Frame Relay switching table. CLNS Configuration s Table F-8 covers commands related to CLNS configuration. Table F-8 CLNS Configuration s clns routing clns host clns router isis Enables routing of CLNS packets Defines a static hostname to CLNS address mapping Enables an interface to use IS-IS to distribute its CLNS routing information

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