CHAPTER 7
Passwords and Security
Overview
Platform Considerations
Copyright © 2010, Juniper Networks, Inc.
Passwords and security are of utmost importance for the security of your router. This
chapter provides the information you need to configure your E Series router to be secure
for all levels of users.
This chapter contains the following sections:
Overview on page 403
Platform Considerations on page 403
Setting Basic Password Parameters on page 404
Setting and Erasing Passwords on page 407
Vty Line Authentication and Authorization on page 413
Virtual Terminal Access Lists on page 420
Secure System Administration with SSH on page 421
Restricting User Access on page 431
Denial of Service (DoS) Protection on page 435
One of your major management responsibilities is to secure your router. To do this, assign
passwords or secrets to the router. In Global Configuration mode, you can set passwords
or secrets to prevent unauthorized users from accessing the router in Privileged Exec
mode.
Passwords and secrets have the same degree of security on your router, and they are
used interchangeably. You can define either a password or a secret for your router, but
not both.
Passwords and security are supported on all E Series routers.
For information about the modules supported on E Series routers:
See the ERX Module Guide for modules supported on ERX7xx models, ERX14xx models,
and the ERX310 Broadband Services Router.
403
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