Alcatel-Lucent 7750 SR - Page 1265

Virtual Private Routed Network Services
7750 SR OS Services Guide Page 1265
unnumbered
Syntax unnumbered [ip-int-name | ip-address]
no unnumbered
Context config>service>vprn>interface
Description This command configures the interface as an unnumbered interface. Unnumbered IP interface is
supported on a Sonet/SDH access port with the PPP, ATM, or Frame Relay encapsulation. It is not
supported on a TDM port or channel.
Parameters ip-int-name — Specifies the name of an IP interface. If the string contains special characters (#, $,
spaces, etc.), the entire string must be enclosed within double quotes.
ip-address — Specifies an IP address.
urpf-check
Syntax [no] urpf-check
Context config>service>vprn>interface
Description This command enables unicast RPF (uRPF) check on this interface.
The no form of the command disables unicast RPF (uRPF) Check on this interface.
Default disabled
mode
Syntax mode {strict | loose}
no mode
Context config>service>vprn>interface>urfp-check
Description This command specifies the mode of unicast RPF check.
The no form of the command reverts to the default (strict) mode.
Default strict
Parameters strict — When specified, uRPF checks whether incoming packet has a source address that matches a
prefix in the routing table, and whether the interface expects to receive a packet with this source
address prefix.
loose — In loose mode, uRPF checks whether incoming packet has source address with a
corresponding prefix in the routing table. However, the loose mode does not check whether the
interface expects to receive a packet with a specific source address prefix. This object is valid
only when urpf-check is enabled.