Discussion

For the initial router configuration to take effect—and in fact for any router configuration
or configuration changes to take effect—you use the commit command. This command
verifies that there are no syntax errors in the configuration and then activates it.
root@# commit
root@router1#
It’s worthwhile to take a moment to comment on the style you use to type configuration
statements on JUNOS routers. In this recipe, you are at the [edit] configuration
hierarchy level, which is the very top level of the hierarchy, so you have to type
the full hierarchy to the statement as well as the statement itself. This hierarchy is
fairly shallow, so there is not too much extra typing. When you are working in
deeper hierarchies, you may find it easier to move to that hierarchy level, both so you
have less typing to do and have a better sense of where you are in the configuration.
For this recipe, you could type most of the configuration commands from the [edit
system] hierarchy level:
root# cli
root@>
cli> configure
[edit]
root@# edit system
[edit system]
root@# set host-name router1
root@# set domain-name mynetwork.com
root@# set backup-router 192.168.15.2
root@# set name-server 192.168.15.3
root@# set root-authentication plain-text-password
New password: $123poppI
Retype password: $123poppI
Then when you use the show command, you see only the statements at the [edit
system] level:
[edit system]
root@#show
host-name router1;
domain-name mynetwork.com;
backup-router 192.168.15.2;
root-authentication {
encrypted-password "$1$ZUlES4dp$OUwWo1g7cLoV/aMWpHUnC/"; ## SECRET-DATA;
}
name-server {
192.168.15.3;
}
In portions of the configuration where you are using the same configuration command
repeatedly with only minor variations, it is handy to use the keystroke
sequences listed in Table 1-1.
Configuring the Router for the First Time | 15
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