Configuration mode

confirm           Confirm prior commit-confirm
comment           Add comment to this configuration element
commit            Commit the current set of changes
commit-confirm    Commit the current set of changes with 'confirm' required
compare           Compare configuration revisions
copy              Copy a configuration element
delete            Delete a configuration element
discard           Discard uncommitted changes
edit              Edit a sub-element
exit              Exit from this configuration level
load              Load configuration from a file and replace running configuration
loadkey           Load user SSH key from a file
merge             Load configuration from a file and merge running configuration
rename            Rename a configuration element
rollback          Rollback to a prior config revision (requires reboot)
run               Run an operational-mode command
save              Save configuration to a file
set               Set the value of a parameter or create a new element
show              Show the configuration (default values may be suppressed)

Confirm

The confirm command confirms the prior commit-confirm.

Comment

The comment commands allow you to insert a comment above the current configuration section. The command cannot be used at the top of the configuration hierarchy, only on subsections. Comments needs to be commited, just like other config changes.

To add a comment to a section, while being already at the proper section level:

[edit <section>]
vyos@vyos# comment "Type Comment Here"

To add a comment directly to a section, from the top or a higher section:

[edit]
vyos@vyos# comment <section> "Type Comment Here"

To remove a comment, add a blank comment to overwrite:

[edit <section>]
vyos@vyos# comment ""

Examples

To add a comment to the “interfaces” section:

[edit]
vyos@vyos# edit interfaces
[edit interfaces]
vyos@vyos# comment "Here is a comment"
[edit interfaces]
vyos@vyos# commit

The comment would then appear like this:

[edit]
vyos@vyos# show
 /* Here is a comment */
  interfaces {
      ethernet eth0 {
  [...]

An important thing to note is that since the comment is added on top of the section, it will not appear if the show <section> command is used. With the above example, the show interfaces command would return starting after the “interfaces {” line, hiding the comment:

[edit]
vyos@vyos# show interfaces
 ethernet eth0 {
[...]

To add a comment to the interfaces section from the top:

[edit]
vyos@vyos# comment interfaces "test"

The comment can be added to any node that already exists, even if it’s multiple levels lower:

[edit]
vyos@vyos# comment interfaces ethernet eth0 vif 222 address "Far down comment"

Commit

The commit command commits the proposed changes to the configuration file. Every changes done in the configuration session is only applied when the configuration is committed. To view the changes that will be applied, use the show command. To discard the changes without committing, use the discard command. The commit command doesn’t save the configuration, you need to manually use the save command.

The confirm keyword can be added, see commit-confirm. A comment can be entered, it will appear in the commit log.

[edit]
vyos@vyos# commit
Possible completions:
  <Enter>       Commit working configuration
  comment       Comment for commit log

Commit-confirm

The commit-confirm command commits the proposed changes to the configuration file and starts a timer. If the confirm command is not entered before the timer expiration, the configuration will be rolled back and VyOS will reboot. The default timer value is 10 minutes, but a custom value can be entered.

[edit]
vyos@vyos# commit-confirm
Possible completions:
  <Enter>       Commit, rollback/reboot in 10 minutes if no confirm
  <N>           Commit, rollback/reboot in N minutes if no confirm
  comment       Comment for commit log

Compare

VyOS maintains backups of previous configurations. To compare configuration revisions in configuration mode, use the compare command:

[edit]
vyos@vyos# compare
Possible completions:
  <Enter>     Compare working & active configurations
  saved               Compare working & saved configurations
  <N>         Compare working with revision N
  <N> <M>     Compare revision N with M

  Revisions:
    0 2019-03-20 20:57:22 root by boot-config-loader
    1 2019-03-15 20:00:04 root by boot-config-loader
    2 2019-03-05 01:58:39 vyos by cli
    3 2019-03-05 01:54:59 vyos by cli
    4 2019-03-05 01:53:08 vyos by cli
    5 2019-03-05 01:52:21 vyos by cli
    6 2019-02-24 21:01:24 root by boot-config-loader
    7 2019-02-21 22:00:12 vyos by cli
    8 2019-02-21 21:56:49 vyos by cli

Copy

The copy command allows you to copy a configuration object.

Copy the configuration entrys from a firewall name WAN rule 1 to rule 2.

[edit firewall name WAN]
vyos@vyos# show
 rule 1 {
     action accept
     source {
         address 10.1.0.0/24
     }
 }
[edit firewall name WAN]
vyos@vyos# copy rule 1 to rule 2
[edit firewall name WAN]
vyos@vyos# show
 rule 1 {
     action accept
     source {
         address 10.1.0.0/24
     }
 }
+rule 2 {
+    action accept
+    source {
+        address 10.1.0.0/24
+    }
+}

Delete

The delte command is to delete a configuration entry.

This Example delete the hole service tftp-server section.

delete service tftp-server

Discard

The discard command removes all pending configuration changes.

[edit]
vyos@vyos# discard

  Changes have been discarded

Edit

The edit command allows you to navigate down into the configuration tree. To get back to an upper level, use the up command or use the top command to get back to the upper most level. The [edit] text displays where the user is located in the configuration tree.

[edit]
vyos@vyos# edit interfaces
[edit interfaces]
vyos@vyos# edit ethernet eth0
[edit interfaces ethernet eth0]

Exit

The exit command exits the current configuration mode. If the current configuration level isn’t the top-most, then the configuration level is put back to the top-most level. If the configuration level is at the top-most level, then it exits the configuration mode and returns to operational mode. The exit command cannot be used if uncommitted changes exists in the configuration file. To exit with uncommitted changes, you either need to use the exit discard command or you need to commit the changes before exiting. The exit command doesn’t save the configuration, only the save command does. A warning will be given when exiting with unsaved changes. Using the exit command in operational mode will logout the session.

Exiting from a configuration level:

[edit interfaces ethernet eth0]
vyos@vyos# exit
[edit]
vyos@vyos#

Exiting from configuration mode:

[edit]
vyos@vyos# exit
exit
vyos@vyos:~$

Exiting from operational mode:

vyos@vyos:~$ exit
logout

Error message when trying to exit with uncommitted changes:

vyos@vyos# exit
Cannot exit: configuration modified.
Use 'exit discard' to discard the changes and exit.
[edit]
vyos@vyos#

Warning message when exiting with unsaved changes:

[edit]
vyos@vyos# exit
Warning: configuration changes have not been saved.
exit
vyos@vyos:~$

Load

The load command load a configuration from a local or remote file. You have to be use commit to make the change active

<Enter>                               Load from system config file
<file>                                Load from file on local machine
scp://<user>:<passwd>@<host>/<file>   Load from file on remote machine
sftp://<user>:<passwd>@<host>/<file>  Load from file on remote machine
ftp://<user>:<passwd>@<host>/<file>   Load from file on remote machine
http://<host>/<file>                  Load from file on remote machine
https://<host>/<file>                 Load from file on remote machine
tftp://<host>/<file>                  Load from file on remote machine
[edit]
vyos@vyos# load
Loading configuration from '/config/config.boot'...

Load complete.  Use 'commit' to make changes active.

Loadkey

Copies the content of a public key to the ~/.ssh/authorized_keys file.

loadkey <username> [tab]

<file>                      Load from file on local machine
scp://<user>@<host>/<file>  Load from file on remote machine
sftp://<user>@<host>/<file> Load from file on remote machine
ftp://<user>@<host>/<file>  Load from file on remote machine
http://<host>/<file>        Load from file on remote machine
tftp://<host>/<file>        Load from file on remote machine

Merge

The merge command merge the config from a local or remote file with the running config.

In the example below exist a default-firewall.config file with some common firewall rules you saved earlier.

[edit]
vyos@vyos# show firewall
Configuration under specified path is empty
[edit]
vyos@vyos# merge default-firewall.config
Loading configuration from '/config/default-firewall.config'...

Merge complete.  Use 'commit' to make changes active.
[edit]
vyos@vyos#

vyos@vyos# show firewall
+all-ping enable
+broadcast-ping disable
+config-trap disable
+ipv6-receive-redirects disable
+ipv6-src-route disable
+ip-src-route disable
+log-martians enable
+name WAN {
+    default-action drop
+    rule 1 {
+        action accept
+        source {
+            address 10.1.0.0/24
+        }
+    }
+    rule 2 {
+        action accept
+        source {
+            address 10.1.0.0/24
+        }
......

Rename

The rename command allows you to rename or move a configuration object.

See here how to move the configuration entrys from vlanid 3 to 2

[edit interfaces ethernet eth1]
vyos@vyos# show
 duplex auto
 hw-id 08:00:27:81:c6:59
 smp-affinity auto
 speed auto
 vif 3 {
     address 10.4.4.4/32
 }
[edit interfaces ethernet eth1]
vyos@vyos# rename vif 3 to vif 2
[edit interfaces ethernet eth1]
vyos@vyos# show
 duplex auto
 hw-id 08:00:27:81:c6:59
 smp-affinity auto
 speed auto
+vif 2 {
+    address 10.4.4.4/32
+}
-vif 3 {
-    address 10.4.4.4/32
-}
[edit interfaces ethernet eth1]
vyos@vyos#

Rollback

You can rollback configuration using the rollback command, however this command will currently trigger a system reboot. Use the compare command to verify the configuration you want to rollback to.

vyos@vyos# compare 1
[edit system]
>host-name vyos-1
[edit]
vyos@vyos# rollback 1
Proceed with reboot? [confirm][y]

Broadcast message from root@vyos-1 (pts/0) (Tue Dec 17 21:07:45 2018):

The system is going down for reboot NOW!
[edit]
vyos@vyos#

Run

The run command allows you to execute any operational mode commands without exiting the configuration session.

[edit]
vyos@vyos# run show interfaces
Codes: S - State, L - Link, u - Up, D - Down, A - Admin Down
Interface        IP Address                        S/L  Description
---------        ----------                        ---  -----------
eth0             10.1.1.1/24                        u/u

Save

The save command saves the current configuration to non-volatile storage. VyOS also supports saving and loading configuration remotely using SCP, FTP, or TFTP.

<Enter>                               Save to system config file
<file>                                Save to file on local machine
scp://<user>:<passwd>@<host>/<file>   Save to file on remote machine
sftp://<user>:<passwd>@<host>/<file>  Save to file on remote machine
ftp://<user>:<passwd>@<host>/<file>   Save to file on remote machine
tftp://<host>/<file>                  Save to file on remote machine

Set

The set command create all configuration entrys

[edit]
vyos@vyos# set protocols static route 0.0.0.0/0 next-hop 192.168.1.1

Show

The show command in the configuration mode displays the configuration and show uncommitted changes.

Show the hole config, the address and description of eth1 is moving to vlan 2 if you commit the changes.

[edit]
vyos@vyos# show
 interfaces {
     dummy dum0 {
         address 10.3.3.3/24
     }
     ethernet eth0 {
         address dhcp
         duplex auto
         hw-id 08:00:27:2b:c0:0b
         smp-affinity auto
         speed auto
     }
     ethernet eth1 {
-        address 10.1.1.1/32
-        description "MGMT Interface"
         duplex auto
         hw-id 08:00:27:81:c6:59
         smp-affinity auto
         speed auto
+        vif 2 {
+            address 10.1.1.1/32
+            description "MGMT Interface"
+        }
     }
     loopback lo {
     }
 }
 service {
     ssh {
         port 22
......