I Commands

This chapter describes the Cisco NX-OS Enhanced Interior Gateway Routing Protocol (EIGRP) commands that begin with I.

ip authentication key-chain eigrp

To enable authentication for the Enhanced Interior Gateway Routing Protocol (EIGRP) packets and to specify the set of keys that can be used on an interface, use the ip authentication key-chain eigrp command. To prevent authentication, use the no form of this command.

ip authentication key-chain eigrp instance-tag name-of-chain

no ip authentication key-chain eigrp instance-tag name-of-chain

Syntax Description

instance-tag

Name of the EIGRP instance. The instance-tag can be any case-sensitive, alphanumeric string up to 20 characters.

name-of-chain

Group of keys that are valid.


Command Default

No authentication is provided for EIGRP packets.

Command Modes

Command HistoryInterface configuration mode

Release
Modification

5.0(3)N1(1)

This command was introduced.


Usage Guidelines

You must set the authentication mode using the ip authentication mode eigrp command in interface configuration mode. You must separately configure a key chain using the key-chain command to complete the authentication configuration for an interface.

This command requires the LAN Base Services license.

Examples

This example shows how to configure the interface to accept and send any key that belongs to the key-chain trees: 

switch(config)# router eigrp 209

switch(config-router)# interface ethernet 1/2

switch(config-if)# no switchport

switch(config-if)# ip authentication key-chain eigrp 209 trees

switch(config-if)#

 
   
 
    
   
 Related Commands
 
   
 
    
 
      
      
      
 
        
        

          Command 
        
 		 
        
        

          Description 
        
 		 
      
 
      
 
       
 ip authentication mode eigrp 
 		 
       
 Sets the authentication mode for EIGRP on an interface. 
 		 
      
 
      
 
       
 key-chain 
 		 
       
 Creates a set of keys that can be used by an authentication method. 
 		 
      
 
      
 
       
 show ip eigrp interfaces 
 		 
       
 Displays information about EIGRP interfaces. 
 		 
      
 
      
    
 
   
 
   
 
   
 
 
    
   
 
 
     
    
    
   
 ip authentication mode eigrp 
 
    
   
 To specify the type of authentication used in the Enhanced Interior Gateway Routing Protocol (EIGRP) packets, use the ip authentication mode eigrp command. To remove authentication, use the no form of this command. 
 
    
   
ip authentication mode eigrp instance-tag md5 
 
    
   
no ip authentication mode eigrp instance-tag md5 
 
    
   
 Syntax Description
 
   
 
    
 
      
      
      
 
       
 instance-tag 
 		 
       
 Name of the EIGRP instance. The instance-tag can be any case-sensitive, alphanumeric string up to 20 characters. 
 		 
      
 
      
 
       
 md5 
 		 
       
 Specifies Message Digest 5 (MD5) authentication. 
 		 
      
 
      
    
 
   
 
   
 
   
 
 
    
   
 Command Default 
 
    
   
 None 
 
    
   
 Command Modes 
 
    
   
 Command HistoryInterface configuration mode
 
   
 
    
 
      
      
      
 
        
        

          Release 
        
 		 
        
        

          Modification 
        
 		 
      
 
      
 
       
 5.0(3)N1(1) 
 		 
       
 This command was introduced. 
 		 
      
 
      
    
 
   
 
   
 
   
 
 
    
   
 Usage Guidelines 
 
    
   
 This command requires the LAN Base Services license. 
 
    
   
 Examples 
 
    
   
 This example shows how to configure the interface to use MD5 authentication: 
 
    
   
 
    
switch(config)# router eigrp 209

 
   
 
    
   
 
    
switch(config-router)# interface ethernet 1/2

 
   
 
    
   
 
    
switch(config-if)# no switchport

 
   
 
    
   
 
    
switch(config-if)# ip authentication mode eigrp 209 md5

 
   
 
    
   
 
    
switch(config-if)#

 
   
 
    
   
 
    
 
   
 
    
   
 Related Commands
 
   
 
    
 
      
      
      
 
        
        

          Command 
        
 		 
        
        

          Description 
        
 		 
      
 
      
 
       
 authentication mode (EIGRP) 
 		 
       
 Configures the authentication mode for EIGRP in a VRF. 
 		 
      
 
      
 
       
 copy running-config startup-config 
 		 
       
 Copies the configuration changes to the startup configuration file. 
 		 
      
 
      
 
       
 ip authentication key-chain eigrp 
 		 
       
 Enables authentication for EIGRP and specifies the set of keys that can be used on an interface. 
 		 
      
 
      
 
       
 key chain 
 		 
       
 Creates a set of keys that can be used by an authentication method. 
 		 
      
 
      
 
       
 show ip eigrp interfaces 
 		 
       
 Displays information about EIGRP interfaces. 
 		 
      
 
      
    
 
   
 
   
 
   
 
 
    
   
 
 
     
    
    
   
 ip bandwidth eigrp 
 
    
   
 To configure the bandwidth metric on an Enhanced Interior Gateway Routing Protocol (EIGRP) interface, use the ip bandwidth eigrp command. To restore the default, use the no form of this command. 
 
    
   
ip bandwidth eigrp instance-tag bandwidth 
 
    
   
no ip bandwidth eigrp 
 
    
   
 Syntax Description
 
   
 
    
 
      
      
      
 
       
 instance-tag 
 		 
       
 Name of the EIGRP instance. The instance-tag can be any case-sensitive, alphanumeric string up to 20 characters. 
 		 
      
 
      
 
       
 bandwidth 
 		 
       
 Bandwidth value. The range is from 1 to 2,560,000,000 kilobits. 
 		 
      
 
      
    
 
   
 
   
 
   
 
 
    
   
 Command Default 
 
    
   
 None 
 
    
   
 Command Modes 
 
    
   
 Command HistoryInterface configuration mode
 
   
 
    
 
      
      
      
 
        
        

          Release 
        
 		 
        
        

          Modification 
        
 		 
      
 
      
 
       
 5.0(3)N1(1) 
 		 
       
 This command was introduced. 
 		 
      
 
      
    
 
   
 
   
 
   
 
 
    
   
 Usage Guidelines 
 
    
   
 This command requires the LAN Base Services license. 
 
    
   
 Examples 
 
    
   
 This example shows how to configure EIGRP to use a bandwidth metric of 10000 in autonomous system 209: 
 
    
   
 
    
switch(config)# router eigrp 209

 
   
 
    
   
 
    
switch(config-router)# interface ethernet 2/1

 
   
 
    
   
 
    
switch(config-if)# no switchport

 
   
 
    
   
 
    
switch(config-if)# ip bandwidth eigrp 209 10000

 
   
 
    
   
 
    
 
   
 
    
   
 Related Commands
 
   
 
    
 
      
      
      
 
        
        
 
         Command 
        
 		 
        
        
 
         Description 
        
 		 
      
 
      
 
       
 ip bandwidth-percent eigrp 
 		 
       
 Sets the percent of the interface bandwidth that EIGRP can use. 
 		 
      
 
      
 
       
 show ip eigrp 
 		 
       
 Displays EIGRP information. 
 		 
      
 
      
    
 
   
 
   
 
   
 
 
    
     
    
    
   
 ip bandwidth-percent eigrp 
 
    
   
 To configure the percentage of bandwidth that may be used by the Enhanced Interior Gateway Routing Protocol (EIGRP) on an interface, use the ip bandwidth-percent eigrp command. To restore the default, use the no form of this command. 
 
    
   
ip bandwidth-percent eigrp instance-tag percent 
 
    
   
no ip bandwidth-percent eigrp 
 
    
   
 Syntax Description
 
   
 
    
 
      
      
      
 
       
 instance-tag 
 		 
       
 Name of the EIGRP instance. The instance-tag can be any case-sensitive, alphanumeric string up to 20 characters. 
 		 
      
 
      
 
       
 percent 
 		 
       
 Percentage of bandwidth that EIGRP may use. 
 		 
      
 
      
    
 
   
 
   
 
   
 
 
    
   
 Command Default 
 
    
   
 percent: 50 
 
    
   
 Command Modes 
 
    
   
 Command HistoryInterface configuration mode
 
   
 
    
 
      
      
      
 
        
        

          Release 
        
 		 
        
        

          Modification 
        
 		 
      
 
      
 
       
 5.0(3)N1(1) 
 		 
       
 This command was introduced. 
 		 
      
 
      
    
 
   
 
   
 
   
 
 
    
   
 Usage Guidelines 
 
    
   
 EIGRP uses up to 50 percent of the bandwidth of a link, as defined by the ip bandwidth interface configuration command. Use the ip bandwidth-percent command to change this default percent. 
 
    
   
 This command requires the LAN Base Services license. 
 
    
   
 Examples 
 
    
   
 This example shows how to configure EIGRP to use up to 75 percent of an interface in autonomous system 209: 
 
    
   
 
    
switch(config)# router eigrp 209

 
   
 
    
   
 
    
switch(config-router)# interface ethernet 2/1

 
   
 
    
   
 
    
switch(config-if)# no switchport

 
   
 
    
   
 
    
switch(config-if)# ip bandwidth-percent eigrp 209 75

 
   
 
    
   
 
    
switch(config-if)#

 
   
 
    
   
 Related Commands
 
   
 
    
 
      
      
      
 
        
        
 
         Command 
        
 		 
        
        
 
         Description 
        
 		 
      
 
      
 
       
 ip bandwidth eigrp 
 		 
       
 Sets the EIGRP bandwidth value for an interface. 
 		 
      
 
      
 
       
 show ip eigrp 
 		 
       
 Displays EIGRP information. 
 		 
      
 
      
    
 
   
 
   
 
   
 
 
    
   
 
 
     
    
    
   
 ip delay eigrp 
 
    
   
 To configure the throughput delay for the Enhanced Interior Gateway Routing Protocol (EIGRP) on an interface, use the ip delay eigrp command. To restore the default, use the no form of this command. 
 
    
   
ip delay eigrp instance-tag seconds 
 
    
   
no ip delay eigrp instance-tag 
 
    
   
 Syntax Description
 
   
 
    
 
      
      
      
 
       
 instance-tag 
 		 
       
 Name of the EIGRP instance. The instance-tag can be any case-sensitive, alphanumeric string up to 20 characters. 
 		 
      
 
      
 
       
 seconds 
 		 
       
 Throughput delay, in tens of microseconds. The range is from 1 to 16777215. 
 		 
      
 
      
    
 
   
 
   
 
   
 
 
    
   
 Command Default 
 
    
   
 100 (10-microsecond units) 
 
    
   
 Command Modes 
 
    
   
 Command HistoryInterface configuration mode
 
   
 
    
 
      
      
      
 
        
        

          Release 
        
 		 
        
        

          Modification 
        
 		 
      
 
      
 
       
 5.0(3)N1(1) 
 		 
       
 This command was introduced. 
 		 
      
 
      
    
 
   
 
   
 
   
 
 
    
   
 Usage Guidelines 
 
    
   
 You configure the throughput delay on an interface in 10-microsecond units. For example, if you set the ip delay eigrp command to 100, the throughput delay is 1000 microseconds. 
 
    
   
 This command requires the LAN Base Services license. 
 
    
   
 Examples 
 
    
   
 This example shows how to set the delay to 400 microseconds for the interface: 
 
    
   
 
    
switch(config)# router eigrp 1

 
   
 
    
   
 
    
switch(config-router)# interface ethernet 2/1

 
   
 
    
   
 
    
switch(config-if)# no switchport

 
   
 
    
   
 
    
switch(config-if)# ip delay eigrp 1 40

 
   
 
    
   
 
    
 
   
 
    
   
 Related Commands
 
   
 
    
 
      
      
      
 
        
        
 
         Command 
        
 		 
        
        
 
         Description 
        
 		 
      
 
      
 
       
 ip hello-interval eigrp 
 		 
       
 Configures the hello interval on an interface for the EIGRP routing process that is designated by an autonomous system number. 
 		 
      
 
      
 
       
 show ip eigrp 
 		 
       
 Displays EIGRP information. 
 		 
      
 
      
    
 
   
 
   
 
   
 
 
     
    
    
   
 ip distribute-list eigrp 
 
    
   
 To configure a distribution list for the Enhanced Interior Gateway Routing Protocol (EIGRP) on an interface, use the ip distribute-list eigrp command. To restore the default, use the no form of this command. 
 
    
   
ip distribute-list eigrp instance-tag {prefix-list list-name | route-map map-name} {in | out} 
 
    
   
no ip distribute-list eigrp instance-tag {prefix-list list-name | route-map map-name} {in | out} 
 
    
   
 Syntax Description
 
   
 
    
 
      
      
      
 
       
 instance-tag 
 		 
       
 Name of the EIGRP instance. The instance-tag can be any case-sensitive, alphanumeric string up to 20 characters. 
 		 
      
 
      
 
       
 prefix-list list-name 
 		 
       
 Specifies the name of an IP prefix list to filter EIGRP routes. 
 		 
      
 
      
 
       
 route-map map-name 
 		 
       
 Specifies the name of a route map to filter EIGRP routes. 
 		 
      
 
      
 
       
 in 
 		 
       
 Applies the route policy to incoming routes. 
 		 
      
 
      
 
       
 out 
 		 
       
 Applies the route policy to outgoing routes. 
 		 
      
 
      
    
 
   
 
   
 
   
 
 
    
   
 Command Default 
 
    
   
 None 
 
    
   
 Command Modes 
 
    
   
 Command HistoryInterface configuration mode
 
   
 
    
 
      
      
      
 
        
        

          Release 
        
 		 
        
        

          Modification 
        
 		 
      
 
      
 
       
 5.0(3)N1(1) 
 		 
       
 This command was introduced. 
 		 
      
 
      
    
 
   
 
   
 
   
 
 
    
   
 Usage Guidelines 
 
    
   
 Use the ip distribute-list eigrp command to configure a route filter policy on an interface. You must configure the named route map or prefix list to complete this configuration. 
 
    
   
 This command requires the LAN Base Services license. 
 
    
   
 Examples 
 
    
   
 This example shows how to configure a route map for all EIGRP routes coming into the interface: 
 
    
   
 
    
switch(config)# router eigrp 209

 
   
 
    
   
 
    
switch(config-router)# interface ethernet 2/1

 
   
 
    
   
 
    
switch(config-if)# no switchport

 
   
 
    
   
 
    
switch(config-if)# ip distribute-list eigrp 209 route-map InputFilter in

 
   
 
    
   
 
    
switch(config-if)#

 
   
 
    
   
 
    
 
   
 
    
   
 Related Commands
 
   
 
    
 
      
      
      
 
        
        

          Command 
        
 		 
        
        

          Description 
        
 		 
      
 
      
 
       
 prefix-list 
 		 
       
 Configures a prefix list. 
 		 
      
 
      
 
       
 route-map 
 		 
       
 Configures a route map. 
 		 
      
 
      
 
       
 show ip eigrp 
 		 
       
 Displays EIGRP information 
 		 
      
 
      
    
 
   
 
   
 
   
 
 
    
   
 
 
     
    
    
   
 ip eigrp shutdown 
 
    
   
 To shut down the Enhanced Interior Gateway Routing Protocol (EIGRP) on an interface, use the ip eigrp shutdown command. To restore the default, use the no form of this command. 
 
    
   
ip eigrp instance-tag shutdown 
 
    
   
no ip eigrp instance-tag shutdown 
 
    
   
 Syntax Description
 
   
 
    
 
      
      
      
 
       
 instance-tag 
 		 
       
 Name of the EIGRP instance. The instance-tag can be any case-sensitive, alphanumeric string up to 20 characters. 
 		 
      
 
      
    
 
   
 
   
 
   
 
 
    
   
 Command Default 
 
    
   
 None 
 
    
   
 Command Modes 
 
    
   
 Command HistoryInterface configuration mode
 
   
 
    
 
      
      
      
 
        
        

          Release 
        
 		 
        
        

          Modification 
        
 		 
      
 
      
 
       
 5.0(3)N1(1) 
 		 
       
 This command was introduced. 
 		 
      
 
      
    
 
   
 
   
 
   
 
 
    
   
 Usage Guidelines 
 
    
   
 Use the ip eigrp shutdown command to shut down the interface for EIGRP and prevent EIGRP adjacency for the interface for maintenance purposes. The network address for the interface does not show up in the EIGRP topology table. 
 
    
   
 Use the ip passive-interface eigrp command to prevent EIGRP adjacency but keep the network address in the topology table. 
 
    
   
 This command requires the LAN Base Services license. 
 
    
   
 Examples 
 
    
   
 This example shows how to disable EIGRP on an interface: 
 
    
   
 
    
switch(config)# router eigrp 201

 
   
 
    
   
 
    
switch(config-router)# interface ethernet 2/1

 
   
 
    
   
 
    
switch(config-if)# no switchport

 
   
 
    
   
 
    
switch(config-if)# ip eigrp 201 shutdown

 
   
 
    
   
 Related Commands
 
   
 
    
 
      
      
      
 
        
        
 
         Command 
        
 		 
        
        
 
         Description 
        
 		 
      
 
      
 
       
 ip passive-interface eigrp 
 		 
       
 Configures an instance of EIGRP. 
 		 
      
 
      
 
       
 router eigrp 
 		 
       
 Configures an instance of EIGRP. 
 		 
      
 
      
    
 
   
 
   
 
   
 
 
     
    
    
   
 ip hello-interval eigrp 
 
    
   
 To configure the Enhanced Interior Gateway Routing Protocol (EIGRP) hello interval for an interface, use the ip hello-interval eigrp command. To restore the default, use the no form of this command. 
 
    
   
ip hello-interval eigrp instance-tag seconds 
 
    
   
no ip hello-interval eigrp instance-tag 
 
    
   
 Syntax Description
 
   
 
    
 
      
      
      
 
       
 instance-tag 
 		 
       
 Name of the EIGRP instance. The instance-tag can be any case-sensitive, alphanumeric string up to 20 characters. 
 		 
      
 
      
 
       
 seconds 
 		 
       
 Hello interval (in seconds). The range is from 1 to 65535. 
 		 
      
 
      
    
 
   
 
   
 
   
 
 
    
   
 Command Default 
 
    
   
 5 seconds 
 
    
   
 Command Modes 
 
    
   
 Command HistoryInterface configuration mode
 
   
 
    
 
      
      
      
 
        
        

          Release 
        
 		 
        
        

          Modification 
        
 		 
      
 
      
 
       
 5.0(3)N1(1) 
 		 
       
 This command was introduced. 
 		 
      
 
      
    
 
   
 
   
 
   
 
 
    
   
 Usage Guidelines 
 
    
   
 This command requires the LAN Base Services license. 
 
    
   
 Examples 
 
    
   
 This example shows how to set the hello interval to 10 seconds for the interface: 
 
    
   
 
    
switch(config)# router eigrp 1

 
   
 
    
   
 
    
switch(config-router)# interface ethernet 2/1

 
   
 
    
   
 
    
switch(config-if)# no switchport

 
   
 
    
   
 
    
switch(config-if)# ip hello-interval eigrp 1 10

 
   
 
    
   
 
    
switch(config-if)# 

 
   
 
    
   
 
    
 
   
 
    
   
 Related Commands
 
   
 
    
 
      
      
      
 
        
        

          Command 
        
 		 
        
        

          Description 
        
 		 
      
 
      
 
       
 copy running-config startup-config 
 		 
       
 Saves the configuration changes to the startup configuration file. 
 		 
      
 
      
 
       
 show ip eigrp 
 		 
       
 Displays EIGRP information. 
 		 
      
 
      
    
 
   
 
   
 
   
 
 
    
     
    
    
   
 ip hold-time eigrp 
 
    
   
 To configure the hold time for an Enhanced Interior Gateway Routing Protocol (EIGRP) interface, use the ip hold-time eigrp command. To restore the default, use the no form of this command. 
 
    
   
ip hold-time eigrp instance-tag seconds 
 
    
   
no ip hold-time eigrp instance-tag 
 
    
   
 Syntax Description
 
   
 
    
 
      
      
      
 
       
 instance-tag 
 		 
       
 Name of the EIGRP instance. The instance-tag can be any case-sensitive, alphanumeric string up to 20 characters. 
 		 
      
 
      
 
       
 seconds 
 		 
       
 Hold time (in seconds). The range is from 1 to 65535. 
 		 
      
 
      
    
 
   
 
   
 
   
 
 
    
   
 Command Default 
 
    
   
 15 seconds 
 
    
   
 Command Modes 
 
    
   
 Command HistoryInterface configuration mode
 
   
 
    
 
      
      
      
 
        
        

          Release 
        
 		 
        
        

          Modification 
        
 		 
      
 
      
 
       
 5.0(3)N1(1) 
 		 
       
 This command was introduced. 
 		 
      
 
      
    
 
   
 
   
 
   
 
 
    
   
 Usage Guidelines 
 
    
   
 Use the ip hold-time eigrp command to increase the default hold time on very congested and large networks. 
 
    
   
 We recommend that you configure the hold time to be at least three times the hello interval. If a router does not receive a hello packet within the specified hold time, routes through this router are considered unavailable. 
 
    
   
 Increasing the hold time delays route convergence across the network. 
 
    
   
 This command requires the LAN Base Services license. 
 
    
   
 Examples 
 
    
   
 This example shows how to set the hold time to 40 seconds for the interface: 
 
    
   
 
    
switch(config)# router eigrp 209 

 
   
 
    
   
 
    
switch(config-router)# interface ethernet 2/1

 
   
 
    
   
 
    
switch(config-if)# no switchport

 
   
 
    
   
 
    
switch(config-if)# ip hold-time eigrp 209 40

 
   
 
    
   
 
    
 
   
 
    
   
 Related Commands
 
   
 
    
 
      
      
      
 
        
        
 
         Command 
        
 		 
        
        
 
         Description 
        
 		 
      
 
      
 
       
 copy running-config startup-config 
 		 
       
 Saves the configuration changes to the startup configuration file. 
 		 
      
 
      
 
       
 ip hello-interval eigrp 
 		 
       
 Configures the hello interval on an interface for the EIGRP routing process designated by an autonomous system number. 
 		 
      
 
      
 
       
 show ip eigrp 
 		 
       
 Displays EIGRP information. 
 		 
      
 
      
    
 
   
 
   
 
   
 
 
    
   
 
 
     
    
    
   
 ip next-hop-self eigrp 
 
    
   
 To instruct the Enhanced Interior Gateway Routing Protocol (EIGRP) process to use the local IP address as the next-hop address when advertising these routes, use the ip next-hop-self eigrp command. To use the received next-hop value, use the no form of this command. 
 
    
   
ip next-hop-self eigrp instance-tag 
 
    
   
no ip next-hop-self eigrp instance-tag 
 
    
   
 Syntax Description
 
   
 
    
 
      
      
      
 
       
 instance-tag 
 		 
       
 Name of the EIGRP instance. The instance-tag can be any case-sensitive, alphanumeric string up to 20 characters. 
 		 
      
 
      
    
 
   
 
   
 
   
 
 
    
   
 Command Default 
 
    
   
 EIGRP always sets the IP next-hop value to be itself. 
 
    
   
 Command Modes 
 
    
   
 Command HistoryInterface configuration mode
 
   
 
    
 
      
      
      
 
        
        

          Release 
        
 		 
        
        

          Modification 
        
 		 
      
 
      
 
       
 5.0(3)N1(1) 
 		 
       
 This command was introduced. 
 		 
      
 
      
    
 
   
 
   
 
   
 
 
    
   
 Usage Guidelines 
 
    
   
 EIGRP, by default, sets the IP next-hop value to be itself for routes that it is advertising, even when advertising those routes on the same interface from which the router learned them. To change this default, you must use the no ip next-hop-self eigrp command to instruct EIGRP to use the received next-hop value when advertising these routes. 
 
    
   
 Examples 
 
    
   
 This example shows how to change the default IP next-hop value and instruct EIGRP to use the received next-hop value: 
 
    
   
 
    
switch(config)# router eigrp 209

 
   
 
    
   
 
    
switch(config-router)# interface ethernet 2/1

 
   
 
    
   
 
    
switch(config-if)# no switchport

 
   
 
    
   
 
    
switch(config-if)# no ip next-hop-self eigrp 209

 
   
 
    
   
 
    
 
   
 
    
   
 Related Commands
 
   
 
    
 
      
      
      
 
        
        

          Command 
        
 		 
        
        

          Description 
        
 		 
      
 
      
 
       
 copy running-config startup-config 
 		 
       
 Saves the configuration changes to the startup configuration file. 
 		 
      
 
      
 
       
 show ip eigrp 
 		 
       
 Displays EIGRP information. 
 		 
      
 
      
    
 
   
 
   
 
   
 
 
    
   
 
 
     
    
    
   
 ip offset-list eigrp 
 
    
   
 To configure an offset list for the Enhanced Interior Gateway Routing Protocol (EIGRP) on an interface, use the ip offset-list eigrp command. To restore the default, use the no form of this command. 
 
    
   
ip offset-list eigrp instance-tag {prefix-list list-name | route-map map-name} {in | out} offset 
 
    
   
no ip offset-list eigrp instance-tag {prefix-list list-name | route-map map-name} {in | out} offset 
 
    
   
 Syntax Description
 
   
 
    
 
      
      
      
 
       
 instance-tag 
 		 
       
 Name of the EIGRP instance. The instance-tag can be any case-sensitive, alphanumeric string up to 20 characters. 
 		 
      
 
      
 
       
 prefix-list list-name 
 		 
       
 Specifies the name of an IP prefix list to filter EIGRP routes. 
 		 
      
 
      
 
       
 route-map map-name 
 		 
       
 Specifies the name of a route map to filter EIGRP routes. 
 		 
      
 
      
 
       
 in 
 		 
       
 Applies the route policy to incoming routes. 
 		 
      
 
      
 
       
 out 
 		 
       
 Applies the route policy to outgoing routes. 
 		 
      
 
      
 
       
 offset 
 		 
       
 Value to add to the EIGRP metric. The range is from 0 to 2147483647. 
 		 
      
 
      
    
 
   
 
   
 
   
 
 
    
   
 Command Default 
 
    
   
 None 
 
    
   
 Command Modes 
 
    
   
 Command HistoryInterface configuration mode
 
   
 
    
 
      
      
      
 
        
        

          Release 
        
 		 
        
        

          Modification 
        
 		 
      
 
      
 
       
 5.0(3)N1(1) 
 		 
       
 This command was introduced. 
 		 
      
 
      
    
 
   
 
   
 
   
 
 
    
   
 Usage Guidelines 
 
    
   
 Cisco NX-OS adds the configured offset value to any routes that match the configure prefix list or route map. You must configure the named route map or prefix list to complete this configuration. 
 
    
   
 This command requires the LAN Base Services license. 
 
    
   
 Examples 
 
    
   
 This example shows how to configure an offset list filter to add 20 to the metric for EIGRP routes coming into the interface that match the route map OffsetFilter: 
 
    
   
 
    
switch(config)# router eigrp 209

 
   
 
    
   
 
    
switch(config-router)# interface ethernet 2/1

 
   
 
    
   
 
    
switch(config-if)# no switchport

 
   
 
    
   
 
    
switch(config-if)# ip offset-list eigrp 209 route-map OffsetFilter in 20

 
   
 
    
   
 
    
switch(config-if)#

 
   
 
    
   
 Related Commands
 
   
 
    
 
      
      
      
 
        
        

          Command 
        
 		 
        
        

          Description 
        
 		 
      
 
      
 
       
 prefix-list 
 		 
       
 Configures a prefix list. 
 		 
      
 
      
 
       
 route-map 
 		 
       
 Configures a route map. 
 		 
      
 
      
 
       
 show ip eigrp 
 		 
       
 Displays EIGRP information. 
 		 
      
 
      
    
 
   
 
   
 
   
 
 
    
   
 
 
     
    
    
   
 ip passive-interface eigrp 
 
    
   
 To suppress all routing updates on an Enhanced Interior Gateway Routing Protocol (EIGRP) interface, use the ip passive-interface eigrp command. To reenable the sending of routing updates, use the no form of this command. 
 
    
   
ip passive-interface eigrp instance-tag 
 
    
   
no ip passive-interface eigrp instance-tag 
 
    
   
 Syntax Description
 
   
 
    
 
      
      
      
 
       
 instance-tag 
 		 
       
 Name of the EIGRP instance. The name can be any case-sensitive, alphanumeric string up to 20 characters. 
 		 
      
 
      
    
 
   
 
   
 
   
 
 
    
   
 Command Default 
 
    
   
 Routing updates are sent on the interface. 
 
    
   
 Command Modes 
 
    
   
 Command HistoryInterface configuration mode
 
   
 
    
 
      
      
      
 
        
        

          Release 
        
 		 
        
        

          Modification 
        
 		 
      
 
      
 
       
 5.0(3)N1(1) 
 		 
       
 This command was introduced. 
 		 
      
 
      
    
 
   
 
   
 
   
 
 
    
   
 Usage Guidelines 
 
    
   
 Use the ip passive-interface eigrp command to stop all routing updates on an interface and suppress the formation of EIGRP adjacencies. The network address for the interface remains in the EIGRP topology table. 
 
    
   
 This command requires the LAN Base Services license. 
 
    
   
 Examples 
 
    
   
 This example shows how to stop EIGRP routing updates on ethernet 2/1: 
 
    
   
 
    
switch(config)# router eigrp 201

 
   
 
    
   
 
    
switch(config-router)# interface ethernet 2/1

 
   
 
    
   
 
    
switch(config-if)# no switchport

 
   
 
    
   
 
    
switch(config-if)# ip passive-interface eigrp 201

 
   
 
    
   
 
    
switch(config-if)#

 
   
 
    
   
 
    
 
   
 
    
   
 Related Commands
 
   
 
    
 
      
      
      
 
        
        

          Command 
        
 		 
        
        

          Description 
        
 		 
      
 
      
 
       
 copy running-config startup-config 
 		 
       
 Saves the configuration in the startup configuration file. 
 		 
      
 
      
 
       
 no switchport 
 		 
       
 Configures an interface as a Layer 3 routed interface. 
 		 
      
 
      
 
       
 show ip eigrp interfaces 
 		 
       
 Displays information about EIGRP interfaces. 
 		 
      
 
      
    
 
   
 
   
 
   
 
 
    
   
 
 
     
    
    
    
   
 ip route 
 
    
   
 To configure a static route, use the ip route command. To remove the static route, use the no form of this command. 
 
    
   
ip route ip-prefix/mask {[interface] next-hop} [preference] [tag id] 
 
    
   
no ip route ip-prefix/mask {[interface] next-hop} [preference] [tag id] 
 
    
   
 Syntax Description
 
   
 
    
 
      
      
      
 
       
 ip-prefix/mask 
 		 
       
 IP prefix and prefix mask. The format is x.x.x.x/length. The length is 1 to 32. 
 		 
      
 
      
 
       
 interface 
 		 
       
 (Optional) Interface on which all packets are sent to reach this route. Use ? to display a list of supported interfaces. 
 		 
      
 
      
 
       
 next-hop 
 		 
       
 IP address of the next hop that can be used to reach that network. You can specify an IP address and an interface type and interface number. The format is x.x.x.x/length. The length is 1 to 32. 
 		 
      
 
      
 
       
 preference 
 		 
       
 (Optional) Route preference that is used as the administrative distance to this route. The range is from 1 to 255. The default is 1. 
 		 
      
 
      
 
       
 tag id 
 		 
       
 (Optional) Assigns a route tag that can be used to match against in a route map. The range is from 0 to 4294967295. The default is 0. 
 		 
      
 
      
    
 
   
 
   
 
   
 
 
    
   
 Command Default 
 
    
   
 None 
 
    
   
 Command Modes 
 
    
   
 Command HistoryGlobal configuration mode
 
   
 
    
 
      
      
      
 
        
        

          Release 
        
 		 
        
        

          Modification 
        
 		 
      
 
      
 
       
 5.0(3)N1(1) 
 		 
       
 This command was introduced. 
 		 
      
 
      
    
 
   
 
   
 
   
 
 
    
   
 Usage Guidelines 
 
    
   
 Static routes have a default administrative distance of 1. If you want a dynamic routing protocol to take precidence over a static route, you must configure the static route preference argument to be greater than the administrative distance of the dynamic routing protocol. For example, routes derived with the Enhanced Interior Gateway Routing Protocol (EIGRP) have a default administrative distance of 100. To have a static route that would be overridden by an EIGRP dynamic route, you should specify an administrative distance greater than 100. 
 
    
   
 Examples 
 
    
   
 This example shows how to create a static route for destinations with the IP address prefix 192.168.1.1/32, reachable through the next-hop address 10.0.0.2: 
 
    
   
 
    
switch(config)# ip route 192.168.1.1/32 10.0.0.2

 
   
 
    
   
 
    
 
   
 
    
   
 This example shows how to assign a tag to the previous example so that you can configure a route map that can match on this static route: 
 
    
   
 
    
switch(config)# ip route 192.168.1.1/32 10.0.0.2 tag 5

 
   
 
    
   
 
    
 
   
 
    
   
 This example shows how to choose a preference of 110. In this case, packets for prefix 10.0.0.0 are routed to a router at 172.31.3.4 if dynamic route information with an administrative distance less than 110 is not available. 
 
    
   
 
    
switch# configure terminal

 
   
 
    
   
 
    
switch(config)# ip route 10.0.0.0/8 172.31.3.4 110

 
   
 
    
   
 
    
switch(config)#

 
   
 
    
   
 
    
 
   
 
    
   
 Related Commands 
 
   
 
    
 
      
      
      
 
        
        

          Command 
        
 		 
        
        

          Description 
        
 		 
      
 
      
 
       
 show vrf 
 		 
       
 Displays the VRF configuration information. 
 		 
      
 
      
    
 
   
 
   
 
   
 
 
    
   
 
 
     
    
    
    
   
 ip router eigrp 
 
    
   
 To specify the Enhanced Interior Gateway Routing Protocol (EIGRP) instance for an interface, use the ip router eigrp command. To return to the default, use the no form of this command. 
 
    
   
ip router eigrp instance-tag 
 
    
   
no ip router eigrp instance-tag 
 
    
   
 Syntax Description
 
   
 
    
 
      
      
      
 
       
 instance-tag 
 		 
       
 Name of the EIGRP instance. The instance-tag can be any case-sensitive, alphanumeric string up to 20 characters. 
 		 
      
 
      
    
 
   
 
   
 
   
 
 
    
   
 Command Default 
 
    
   
 None 
 
    
   
 Command Modes 
 
    
   
 Command HistoryInterface configuration mode
 
   
 
    
 
      
      
      
 
        
        

          Release 
        
 		 
        
        

          Modification 
        
 		 
      
 
      
 
       
 5.0(3)N1(1) 
 		 
       
 This command was introduced. 
 		 
      
 
      
    
 
   
 
   
 
   
 
 
    
   
 Usage Guidelines 
 
    
   
 Before you use this command, make sure that you enable EIGRP on the switch. 
 
    
   
 This command requires the LAN Base Services license. 
 
    
   
 Examples 
 
    
   
 This example shows how to set the EIGRP instance for an interface: 
 
    
   
 
    
switch(config)# interface ethernet 1/2

 
   
 
    
   
 
    
switch(config-if)# no switchport

 
   
 
    
   
 
    
switch(config-if)# ip router eigrp Base 

 
   
 
    
   
 
    
switch(config-if)#

 
   
 
    
   
 
    
 
   
 
    
   
 Related Commands
 
   
 
    
 
      
      
      
 
        
        

          Command 
        
 		 
        
        

          Description 
        
 		 
      
 
      
 
       
 copy running-config startup-config 
 		 
       
 Saves the configuration changes in the startup configuration file. 
 		 
      
 
      
 
       
 feature eigrp 
 		 
       
 Enables EIGRP on the switch. 
 		 
      
 
      
 
       
 show ip eigrp interfaces 
 		 
       
 Displays information about EIGRP interfaces. 
 		 
      
 
      
    
 
   
 
   
 
   
 
 
    
   
 
 
     
    
    
   
 ip split-horizon eigrp 
 
    
   
 To enable split horizon for an Enhanced Interior Gateway Routing Protocol (EIGRP) process, use the ip split-horizon eigrp command. To disable split horizon, use the no form of this command. 
 
    
   
ip split-horizon eigrp instance-tag 
 
    
   
no ip split-horizon eigrp instance-tag 
 
    
   
 Syntax Description
 
   
 
    
 
      
      
      
 
       
 instance-tag 
 		 
       
 Name of the EIGRP instance. The instance-tag can be any case-sensitive, alphanumeric string up to 20 characters. 
 		 
      
 
      
    
 
   
 
   
 
   
 
 
    
   
 Command Default 
 
    
   
 Enabled 
 
    
   
 Command Modes 
 
    
   
 Command HistoryInterface configuration mode
 
   
 
    
 
      
      
      
 
        
        

          Release 
        
 		 
        
        

          Modification 
        
 		 
      
 
      
 
       
 5.0(3)N1(1) 
 		 
       
 This command was introduced. 
 		 
      
 
      
    
 
   
 
   
 
   
 
 
    
   
 Usage Guidelines 
 
    
   
 Use the no ip split-horizon eigrp command to disable split horizon on an interface. 
 
    
   
 This command requires the LAN Base Services license. 
 
    
   
 Examples 
 
    
   
 This example shows how to disable split horizon an an Ethernet link: 
 
    
   
 
    
switch(config)# router eigrp 209

 
   
 
    
   
 
    
switch(config-router)# interface ethernet 2/1

 
   
 
    
   
 
    
switch(config-if)# no switchport

 
   
 
    
   
 
    
switch(config-if)# no ip split-horizon eigrp 209

 
   
 
    
   
 
    
switch(config-if)#

 
   
 
    
   
 
    
 
   
 
    
   
 Related Commands
 
   
 
    
 
      
      
      
 
        
        

          Command 
        
 		 
        
        

          Description 
        
 		 
      
 
      
 
       
 copy running-config startup-config 
 		 
       
 Saves the configuration changes to the startup configuration file. 
 		 
      
 
      
 
       
 show ip eigrp 
 		 
       
 Displays EIGRP information. 
 		 
      
 
      
    
 
   
 
   
 
   
 
 
    
     
    
    
   
 ip summary-address eigrp 
 
    
   
 To configure a summary aggregate address for the specified Enhanced Interior Gateway Routing Protocol (EIGRP) interface, use the ip summary-address eigrp command. To disable a configuration, use the no form of this command. 
 
    
   
ip summary-address eigrp instance-tag {ip-address/length | ip-address mask} [admin-distance | leak-map map-name] 
 
    
   
no ip summary-address eigrp instance-tag {ip-address/length | ip-address mask} 
 
    
   
 Syntax Description
 
   
 
    
 
      
      
      
 
       
 instance-tag 
 		 
       
 Name of the EIGRP instance. The instance-tag can be any case-sensitive, alphanumeric string up to 20 characters. 
 		 
      
 
      
 
       
 ip-address/length 
 		 
       
 Summary IP prefix and prefix length to apply to an interface in four-part, dotted-decimal notation. For example, /8 indicates that the first eight bits in the IP prefix are network bits. If length is used, the slash is required. 
 		 
      
 
      
 
       
 ip-address 
 		 
       
 Summary IP address to apply to an interface in four-part, dotted-decimal notation. 
 		 
      
 
      
 
       
 mask 
 		 
       
 IP address mask. 
 		 
      
 
      
 
       
 admin-distance 
 		 
       
 (Optional) Administrative distance. The range is from 1 to 255. 
 		 
      
 
      
 
       
 leak-map map-name 
 		 
       
 (Optional) Specifies the leak map. 
 		 
      
 
      
    
 
   
 
   
 
   
 
 
    
   
 Command Default 
 
    
   
 An administrative distance of 5 is applied to EIGRP summary routes.
No summary addresses are predefined. 
 
    
   
 Command Modes 
 
    
   
 Command HistoryInterface configuration mode
 
   
 
    
 
      
      
      
 
        
        

          Release 
        
 		 
        
        

          Modification 
        
 		 
      
 
      
 
       
 5.0(3)N1(1) 
 		 
       
 This command was introduced. 
 		 
      
 
      
    
 
   
 
   
 
   
 
 
    
   
 Usage Guidelines 
 
    
   
 Use the ip summary-address eigrp command to configure interface-level address summarization. EIGRP summary routes are given an administrative distance of 5. 
 
    
   
 This command requires the LAN Base Services license. 
 
    
   
 Examples 
 
    
   
 This example shows how to configure an administrative distance of 95 on an EIGRP interface for the 192.168.0.0/16 summary address: 
 
    
   
 
    
switch(config)# router eigrp 209

 
   
 
    
   
 
    
switch(config-router)# interface ethernet 2/1

 
   
 
    
   
 
    
switch(config-if)# no switchport

 
   
 
    
   
 
    
switch(config-if)# ip summary-address eigrp 209 192.168.0.0/16 95

 
   
 
    
   
 
    
switch(config-if)#

 
   
 
    
   
 Related Commands
 
   
 
    
 
      
      
      
 
        
        

          Command 
        
 		 
        
        

          Description 
        
 		 
      
 
      
 
       
 copy running-config startup-config 
 		 
       
 Saves the configuration changes to the startup configuration file. 
 		 
      
 
      
 
       
 show ip eigrp interfaces 
 		 
       
 Displays EIGRP interface-related information.