Related Topics
■
ip dhcp-external auto-configure
Configuring DHCP External Server to Control Preservation of Dynamic Subscriber
Interfaces
You can configure the DHCP external server application to delete and re-create the
dynamic subscriber interface after a bound client restarts the discovery process on
the its primary IP interface. By default, the DHCP external server preserves the
existing dynamic subscriber interface in this situation.
Deleting and re-creating the dynamic subscriber interface for a DHCP client may
trigger additional authentication, authorization, and accounting (AAA) services if AAA
is configured on the router. Therefore, issuing the
ip dhcp-external
recreate-subscriber-interface
command to delete and re-create the dynamic
subscriber interface is useful if you want to use AAA services to validate and collect
subscriber information during a restart of the DHCP discovery process.
Preserving the client’s dynamic subscriber interface is useful if deleting and re-creating
the dynamic subscriber interface might result in a service interruption.
To enable the DHCP external server application to delete and re-create the dynamic
subscriber interface after a bound client restarts the discovery process on its primary
IP interface:
■
Issue the
ip dhcp-external recreate-subscriber-interface
command from Global
Configuration mode:
host1:vr1(config)#
ip dhcp-external recreate-subscriber-interface
To restore the DHCP external server default behavior to preserve the dynamic
subscriber interface after a bound client restarts the discovery process on its primary
IP interface:
■
Issue the
no ip dhcp-external recreate-subscriber-interface
command from
Global Configuration mode:
host1:vr1(config)#
no ip dhcp-external recreate-subscriber-interface
NOTE:
If you are upgrading the JUNOSe software on the router from a release in
which the DHCP external server deleted and re-created the dynamic subscriber
interface by default, you must explicitly issue the
ip dhcp-external
recreate-subscriber-interface
command in the current release to delete and re-create
the dynamic subscriber interface. The router no longer deletes and re-creates the
dynamic subscriber interface by default in this situation.
For a list of the JUNOSe releases in which deleting and re-creating the dynamic
subscriber interface was the default behavior for the DHCP external server, see
DHCP
External Server
in the
Known Behavior
section of the
JUNOSe Release Notes
.
526
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Configuring DHCP External Server to Control Preservation of Dynamic Subscriber Interfaces
JUNOSe 11.0.x Broadband Access Configuration Guide
Содержание JUNOSE 11.0.X MULTICAST ROUTING
Страница 6: ...vi...
Страница 28: ...xxviii Table of Contents JUNOSe 11 0 x Broadband Access Configuration Guide...
Страница 36: ...xxxvi List of Tables JUNOSe 11 0 x Broadband Access Configuration Guide...
Страница 42: ...2 Managing Remote Access JUNOSe 11 0 x Broadband Access Configuration Guide...
Страница 204: ...164 Managing RADIUS and TACACS JUNOSe 11 0 x Broadband Access Configuration Guide...
Страница 274: ...234 CLI Commands Used to Modify RADIUS Attributes JUNOSe 11 0 x Broadband Access Configuration Guide...
Страница 292: ...252 Monitoring RADIUS Relay Server JUNOSe 11 0 x Broadband Access Configuration Guide...
Страница 336: ...296 RADIUS Client Terminate Reasons JUNOSe 11 0 x Broadband Access Configuration Guide...
Страница 368: ...328 Managing L2TP JUNOSe 11 0 x Broadband Access Configuration Guide...
Страница 408: ...368 Configuring the Weighted Load Balancing Method JUNOSe 11 0 x Broadband Access Configuration Guide...
Страница 444: ...404 PPP Accounting Statistics JUNOSe 11 0 x Broadband Access Configuration Guide...
Страница 492: ...452 Monitoring Operational Status within the Current VR Context JUNOSe 11 0 x Broadband Access Configuration Guide...
Страница 494: ...454 Managing DHCP JUNOSe 11 0 x Broadband Access Configuration Guide...
Страница 510: ...470 DHCP Local Server Configuration Tasks JUNOSe 11 0 x Broadband Access Configuration Guide...
Страница 528: ...488 Configuring the Router to Work with the SRC Software JUNOSe 11 0 x Broadband Access Configuration Guide...
Страница 556: ...516 Configuring DHCP Relay Proxy JUNOSe 11 0 x Broadband Access Configuration Guide...
Страница 616: ...576 Managing the Subscriber Environment JUNOSe 11 0 x Broadband Access Configuration Guide...
Страница 632: ...592 Subscriber Management Configuration Examples JUNOSe 11 0 x Broadband Access Configuration Guide...
Страница 636: ...596 Monitoring Active IP Subscribers Created by Subscriber Management JUNOSe 11 0 x Broadband Access Configuration Guide...
Страница 672: ...632 Monitoring Active IP Subscribers Created by Subscriber Management JUNOSe 11 0 x Broadband Access Configuration Guide...
Страница 674: ...634 Managing Subscriber Services JUNOSe 11 0 x Broadband Access Configuration Guide...
Страница 767: ...Part 7 Index Index on page 729 Index 727...
Страница 768: ...728 Index JUNOSe 11 0 x Broadband Access Configuration Guide...