Related Topics
■
service dhcp-external
Monitoring DHCP Traffic Between Remote Clients and DHCP Servers
You can configure the router to monitor DHCP packets between remote clients and
specified DHCP servers. You can specify up to four DHCP servers.
To monitor DHCP packets between remote clients and a DHCP server:
■
Issue the
ip dhcp-external server-address
command and specify the IP address
of the DHCP server:
host1(config)#
ip dhcp-external server-address 10.10.10.1
host1(config)#
ip dhcp-external server-address 10.20.10.1
You can specify a maximum of four DHCP servers to monitor.
Related Topics
■
ip dhcp-external server-address
Synchronizing the DHCP External Application and the Router
In some cases the router and the DHCP external application might not be
synchronized. For example, an unsynchronized condition might occur when you
first enable the DHCP external server application. You can resynchronize and create
subscriber state information that is based on lease renewals.
To synchronize the external DHCP server with the E Series router:
■
Issue the
ip dhcp-external server-sync
command from Global Configuration
mode:
host1(config)#
ip dhcp-external server-sync
Related Topics
■
ip dhcp-external server-sync
Configuring Interoperation with Ethernet DSLAMs
The DHCP external server application uses the giaddr it receives in DHCP
server-destined packets to determine the next hop for a subscriber’s access routes.
However, when interoperating with Ethernet digital subscriber line access multiplexers
(DSLAMs), using the giaddr sent by the DSLAM can result in traffic being dropped.
To ensure that traffic is forwarded properly, you can configure the DHCP external
server application to disregard the DSLAM’s giaddr and learn the subscriber’s correct
next-hop address.
Monitoring DHCP Traffic Between Remote Clients and DHCP Servers
■
523
Chapter 21: Configuring the DHCP External Server Application
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...