access-list | Defines an access list on a Cisco router. |
area range | Defines route summarization for intra-area routes on an OSPF area border router. |
area stub | Identifies the OSPF area as a stub area. |
area virtual-link | Identifies the OSPF virtual link over a transit area to another OSPF router. |
Bandwidth | Configures the bandwidth of an interface that is used by certain routing protocols for metric calculation. |
bgp default local-preference | Designates the default local-preference attribute value. |
clear ip bgp | Deletes the entries from the BGP routing table and resets the BGP sessions. |
clear ip prefix-list | Resets the hit count that is displayed on IP prefix list entries. |
clear ip route | Clears out the IP routing table entries. |
configure terminal | Places the router in global configuration mode. |
copy running-config startup-config | Copies (overwrites) the configuration from RAM to NVRAM. |
debug | Prints the router events to the console display. |
debug eigrp neighbors | Prints the EIGRP neighbor events to the console display. |
debug eigrp packets | Prints the sent and received EIGRP packets to the console display. |
debug ip bgp | Invokes the output of BGP events to the router console, using various options. |
debug ip bgp updates | Invokes the display of BGP updates to the router console. |
debug ip eigrp | Invokes the output of IP EIGRP advertisements and modifications to the IP routing table. |
debug ip eigrp neighbors | Begins the process of showing the neighbors discovered by IP EIGRP, including the hello packet contents. |
debug ip eigrp summary | Invokes the display of a summary report of IP EIGRP routing activity to the router console. |
debug ip ospf | Invokes the display of OSPF- related events to the router console. |
debug ip ospf adj | Invokes the display of OSPF-related adjacency events to the router console. |
debug ip ospf events | Invokes the display of OSPF-related events to the router console. Event types include adjacency relationships, flooding information, DR and BDR selection, and SPF calculations. |
debug ip policy | Displays IP policy routing events to the router console. |
debug ip routing | Displays IP routing events to the router console. |
default-information originate always | Propagates a default route into an OSPF routing domain. |
default-metric | Designates the seed metric that is used by a routing protocol before route redistribution. |
distance | Specifies the administrative distance (AD) used for a particular routing protocol (except EIGRP and BGP). |
distance bgp | Specifies the AD used for BGP. |
distance eigrp | Specifies the AD used for EIGRP. |
interface | Enters interface configuration mode. |
interface serial multipoint point-to-point | Enters the subinterface configuration mode for a serial interface and designates it as a multipoint or point-to-point link. |
ip address | Allocates an IP address and mask to a particular interface. |
ip bandwidth percent eigrp | Determines the maximum percentage of bandwidth that EIGRP packets are to use on a specific interface. |
ip classless | Designates that if packets are received with a destination address in an unknown subnet of a directly attached network, the address will be matched to the default route and forwarded to the next hop indicated by the configured default route. |
ip default-gateway | Designates a default router to use on routing devices when IP routing is disabled. |
ip default-network | Determines a default route. |
ip helper-address | Defines the address that a router uses to forward certain broadcasts that are sent to a specific interface. |
ip ospf cost | Designates the cost of an outbound OSPF interface. |
ip ospf network | Designates the OSPF mode configuration as either non-broadcast, point-to-multipoint non-broadcast , broadcast, or point-to-point. |
ip ospf priority | Identifies the OSPF priority value on an interface that is used to determine the DR on a multi-access network. |
ip policy route-map | Identifies a route map to implement on a specific interface for routing policy. |
ip prefix-list | Identifies a prefix list on a router. |
ip route | Identifies a static route to a destination IP address or network. |
ip router isis | Enables the IS-IS routing process on interfaces to distribute IP information. |
ip subnet-zero | Permits the utilization of subnets where all the subnet bits are equal to 0. |
ip summary-address eigrp | Determines route summarization (aggregation) on an EIGRP protocol interface. |
ip unnumbered | Invokes the IP process on a serial interface without having to assign a specific IP address. |
is-type | Determines the type of IS-IS level on which a router will operate . |
isis-priority | Modifies the IS-IS router priority value to rig the DR election process. |
isis circuit-type | Determines the type of IS-IS adjacency that will be created on an interface. |
isis metric | Determines the type of IS-IS metric that will be used on an interface. |
match | Determines the conditions to be checked within a particular route map. |
match ip address | Defines the IP addresses to be matched for a particular route map via an IP standard or extended access list. |
maximum-paths | Determines the greatest number of parallel routes that the IP routing protocol will support. |
neighbor | Identifies an OSPF peer router connecting over a non-broadcast network environment. |
network | In RIP, IGRP, EIGRP, and OSPF networks, determines the networks that the routing protocols will run. In OSPF, the command also defines the area in which the interface is. With BGP, the network command enables BGP to advertise a route that is in its routing table and can determine the subnet mask of that route. |
no auto-summary | Disables the automatic route summarization process in EIGRP. |
no-summary | This keyword is used on an ABR to define a totally stubby area. |
no synchronization | Disables the BGP synchronization process. |
passive-interface | Stops routing updates from being generated out of a particular interface. |
ping | Transmits an echo with the expectation of receiving an echo reply packet. |
redistribute | Determines the specific protocol that will be redistributed into the present routing protocol, including connected and static routes. |
reload | Reloads the Cisco OS. |
route-map | Creates a route map and enters the route map configuration mode. |
router bgp | Designates BGP as an IP routing protocol and invokes the protocol configuration mode on the router. |
router eigrp | Designates EIGRP as an IP routing protocol and invokes the protocol configuration mode on the router. |
router isis | Designates IS-IS as an IP routing protocol and invokes the protocol configuration mode on the router. |
router ospf | Designates OSPF as an IP routing protocol and invokes the protocol configuration mode on the router. |
set | Defines the actions to use to match values within a route map. |
set community | Sets the BGP communities attribute in a route map. |
set interface | Designates the interface to which packets should be forwarded from a route map. |
set metric | Configures the BGP metric (MED) value from a route map. |
show access-lists | Shows the contents of all configured access lists on the router. |
show clns | Presents the common information concerning a CLNS network. |
show clns route | Presents the CLNS destinations to which the router knows how to route packets. |
show eigrp traffic | Presents the types of EIGRP packets that are sent and received. |
show interfaces | Shows information concerning interface(s). |
show ip access-list | Shows the configured IP access lists on the router. |
show ip bgp | Shows the BGP routing table. |
show ip bgp neighbors | Shows the data concerning the TCP and BGP peer connections. |
show ip bgp summary | Presents the summary status of all BGP connections. |
show ip eigrp topology | Displays the IP EIGRP topology table. |
show ip eigrp traffic | Shows the number of IP EIGRP packets that are sent and received. |
show ip interface | Presents the IP-related information on the interface, including access-list information. |
show ip ospf | Displays OSPF-related parameters on a router. |
show ip ospf border-routers | Shows the internal OSPF routing table entries to ABRs and ASBRs. |
show ip ospf database | Presents the contents of the OSPF topology table maintained by this router. |
show ip ospf interface | Shows the detailed information regarding OSPF on the interface, including area, state, timers, neighbors, router ID, and type. |
show ip ospf neighbor | Presents a list of OSPF neighbors. |
show ip ospf virtual-links | Presents a list of the OSPF virtual links. |
show ip policy | Displays information regarding route maps that are configured on the interfaces. |
show ip prefix-lists | Shows the information concerning all prefix lists. |
show ip protocols | Presents the running IP routing protocols and basic information concerning each. |
show ip route | Presents the IP routing table. |
show ip route eigrp | Shows the current entries in the IP EIGRP routing table. |
show isis database | Presents the contents of the IS-IS link-state database. |
show isis topology | Shows a list of the paths to all connected IS-IS routers. |
show isis route | Presents the IS-IS Level 1 forwarding table with all the IS-IS routes. |
show route-map | Shows the route maps and number of matches configured on the router. |
show running-config | Shows the running configuration that is active in RAM. |
show startup-config | Shows the backup configuration in NVRAM. |
show version | Shows the system hardware, software versioning, and configuration register settings of the router. |
summary-address | Defines the route summarization (aggregation) for external routes on an OSPF ASBR. |
variance | Specifies the unequal cost load balancing methods when using EIGRP (and IGRP). |