By Default - Juniper EX3400 Features Manual

DHCP and Other System Services Feature Guide for EX2300, EX3400, and EX4300 Switches
Related
Documentation
Preventing DHCP from Installing Access, Access-Internal, and Destination Routes by
Default
82
Preventing DHCP from Installing Access, Access-Internal, and Destination Routes by
Default on page 82
Extended DHCP Local Server Overview on page 22
DHCPv6 Local Server Overview on page 40
Extended DHCP Relay Agent Overview on page 46
DHCPv6 Relay Agent Overview on page 85
You can configure both DHCP local server and DHCP relay agent to override the default
installation of access, access-internal, and destination routes. For DHCPv4 you can
override the installation of destination routes only or access-internal routes (the
access-internal option prevents installation of both destination and access-internal
routes). For DHCPv6 you can specify access routes, access-internal routes, or both. You
can configure the override globally or for named interface groups.
NOTE: You cannot suppress access-internal routes when the subscriber is
configured with both IA_NA and IA_PD addresses over IP demux
interfaces—the IA_PD route relies on the IA_NA route for next hop connectivity.
NOTE: The no-arp
the
route-suppression
To configure route suppression and prevent DHCP from installing specific types of routes:
For DHCP local server route suppression (for example, a global configuration):
[edit system services dhcp-local-server]
user@host# set route-suppression
For DHCP relay (for example, a group-specific configuration):
[edit forwarding-options dhcp-relay group southeast]
user@host# set route-suppression
For DHCPv6 local server (for example, a group-specific configuration):
[edit system services dhcp-local-server group southern3]
user@host# set dhcpv6
For DHCPv6 relay (for example, a global configuration):
[edit forwarding-options dhcp-relay]
user@host# set dhcpv6
statement is deprecated and the function is replaced by
statement.
access-internal
destination
route-suppression access access-internal
route-suppression access
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