EdgeRouter - How to configure an interface

Overview


Readers will learn how to configure a router interface. This is composed of two parts:

  • Assign an IP address and subnet mask
  • Enter a description

Steps


Use the setcomparecommit, and save commands.

To configure an interface, use the set command:

 

ubnt@ubnt:~$ configure
[edit]

To view the possible completions for the eth0 address, enter set interfaces ethernet eth0 address and press the ? key.

 

ubnt@ubnt# set interfaces ethernet eth0 address                              
Possible completions:                                                           
 <x.x.x.x/x>   IP address and prefix length                                    
 <h:h:h:h:h:h:h:h/x>                                                           
               IPv6 address and prefix length                                  
 dhcp          Dynamic Host Configuration Protocol                             
 dhcpv6        Dynamic Host Configuration Protocol for IPv6                    
                                                                               
[edit]                                                                          
ubnt@ubnt# set interfaces ethernet eth0 address 10.1.1.80/23                     
[edit]                                                                          
ubnt@ubnt# set interfaces ethernet eth0 description "production LAN"            
[edit]

These changes affect the working configuration, not the active configuration. To see what changes have been made to the working configuration, use the compare command:

 

ubnt@ubnt# compare                                                              
[edit interfaces ethernet eth0]                                                 
+address 10.1.1.2/24                                                            
+description "production LAN"                                                   
[edit]

To make the changes active, use the commit command:

 

ubnt@ubnt# commit                                                               
[edit]

If you reboot the EdgeRouter, the changes will be lost. To save these changes, use the save command to save the active configuration to the boot configuration.

 

ubnt@ubnt# save                                                                 
Saving configuration to '/config/config.boot'...                                
Done                                                                            
[edit]                                                                          
ubnt@ubnt# exit                                                                 
exit                                                                            
ubnt@ubnt:~$ 
ubnt@ubnt:~$ show interfaces                                                    
Codes: S - State, L - Link, u - Up, D - Down, A - Admin Down                    
Interface    IP Address                        S/L  Description                 
---------    ----------                        ---  -----------                 
eth0         10.1.1.80/23                      u/u  production LAN              
eth1         -                                 u/D                              
eth2         -                                 u/D                              
eth3         -                                 u/D                              
eth4         -                                 u/D                              
eth5         -                                 u/D                              
eth6         -                                 u/D                              
lo           127.0.0.1/8                       u/u                              
            ::1/128                                                                

ubnt@ubnt:~$ ping 10.1.0.1                                                      
PING 10.1.0.1 (10.1.0.1) 56(84) bytes of data.                                  
64 bytes from 10.1.0.1: icmp_req=1 ttl=64 time=0.460 ms                         
64 bytes from 10.1.0.1: icmp_req=2 ttl=64 time=0.407 ms                         
^C                                                                              
--- 10.1.0.1 ping statistics ---                                                
2 packets transmitted, 2 received, 0% packet loss, time 999ms                   
rtt min/avg/max/mdev = 0.407/0.433/0.460/0.033 ms
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