Related Topics
Preservation of Dynamic Subscriber Interfaces with DHCP External Server
Overview on page 519
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ip dhcp-external recreate-subscriber-interface
Configuring Dynamic Subscriber Interfaces for Interoperation with DHCP Relay
and DHCP Relay Proxy
When you configure the DHCP relay application or the DHCP relay proxy application
in the same virtual router (VR) as the DHCP external server application, we
recommend that you define interface profiles to create the dynamic subscriber
interfaces when the primary IP interface is static. Otherwise, the gateway IP address
(giaddr) used for DHCP rebind or renewal requests might be inconsistent. Renewal
requests apply only when DHCP relay proxy is configured in the same VR as DHCP
external server.
The use of inconsistent giaddrs results in the transmission of negative
acknowledgment (NAK) messages from the DHCP server and the removal of existing
DHCP client bindings.
To apply an interface profile to a dynamic subscriber interface:
1.
Define the interface profile.
host1(config)#
profile dsiTest
host1(config-profile)#
ip unnumbered loopback 5500
host1(config-profile)#
exit
2.
Define a route map in the VR in which the static primary IP interface resides.
host1(config)#
virtual-router relay
Proceed with new virtual-router creation? [confirm]
host1:relay(config)#
route-map dsiTest
host1:relay(config-route-map)#
set ip interface-profile dsiTest
host1:relay(config-route-map)#
exit
3.
Define a loopback interface with a host mask in the VR in which the static primary
IP interface resides.
host1:relay(config)#
interface loopback 5500
host1:relay(config-if)#
ip address 71.23.1.2/32
4.
Enable the static primary IP interface to support creation of dynamic subscriber
interfaces, and apply the route map to the IP interface subscriber in the static
primary IP interface configuration.
host1:relay(config)#
interface fastEthernet 5/5.100
host1:relay(config-if)#
ip unnumbered loopback 5500
host1:relay(config-if)#
ip auto-configure ip-subscriber exclude-primary
host1:relay(config-if)#
ip route-map ip-subscriber dsiTest
Configuring Dynamic Subscriber Interfaces for Interoperation with DHCP Relay and DHCP Relay Proxy
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527
Chapter 21: Configuring the DHCP External Server Application
Summary of Contents for JUNOSE 11.0.X MULTICAST ROUTING
Page 6: ...vi...
Page 28: ...xxviii Table of Contents JUNOSe 11 0 x Broadband Access Configuration Guide...
Page 36: ...xxxvi List of Tables JUNOSe 11 0 x Broadband Access Configuration Guide...
Page 42: ...2 Managing Remote Access JUNOSe 11 0 x Broadband Access Configuration Guide...
Page 204: ...164 Managing RADIUS and TACACS JUNOSe 11 0 x Broadband Access Configuration Guide...
Page 292: ...252 Monitoring RADIUS Relay Server JUNOSe 11 0 x Broadband Access Configuration Guide...
Page 336: ...296 RADIUS Client Terminate Reasons JUNOSe 11 0 x Broadband Access Configuration Guide...
Page 368: ...328 Managing L2TP JUNOSe 11 0 x Broadband Access Configuration Guide...
Page 444: ...404 PPP Accounting Statistics JUNOSe 11 0 x Broadband Access Configuration Guide...
Page 494: ...454 Managing DHCP JUNOSe 11 0 x Broadband Access Configuration Guide...
Page 510: ...470 DHCP Local Server Configuration Tasks JUNOSe 11 0 x Broadband Access Configuration Guide...
Page 556: ...516 Configuring DHCP Relay Proxy JUNOSe 11 0 x Broadband Access Configuration Guide...
Page 616: ...576 Managing the Subscriber Environment JUNOSe 11 0 x Broadband Access Configuration Guide...
Page 674: ...634 Managing Subscriber Services JUNOSe 11 0 x Broadband Access Configuration Guide...
Page 767: ...Part 7 Index Index on page 729 Index 727...
Page 768: ...728 Index JUNOSe 11 0 x Broadband Access Configuration Guide...