VPRN Service Configuration Commands
Page 984 7750 SR OS Services Guide
netmask — Specifies a string of 0s and 1s that mask or screen out the network part of an IP address so
that only the host computer part of the address remains.
broadcast — The optional broadcast parameter overrides the default broadcast address used by the
IP interface when sourcing IP broadcasts on the IP interface. If no broadcast format is specified
for the IP address, the default value is host-ones which indictates a subnet broadcast address. Use
this parameter to change the broadcast address to all-ones or revert back to a broadcast address of
host-ones.
The broadcast format on an IP interface can be specified when the IP address is assigned or
changed.
This parameter does not affect the type of broadcasts that can be received by the IP interface. A
host sending either the local broadcast (all-ones) or the valid subnet broadcast address (host-
ones) will be received by the IP interface. (Default: host-ones)
all-ones — The all-ones keyword following the broadcast parameter specifies the broadcast address
used by the IP interface for this IP address will be 255.255.255.255, also known as the local
broadcast.
host-ones — The host-ones keyword following the broadcast parameter specifies that the broadcast
address used by the IP interface for this IP address will be the subnet broadcast address. This is
an IP address that corresponds to the local subnet described by the ip-address and the mask-
length or mask with all the host bits set to binary one. This is the default broadcast address used
by an IP interface.
The broadcast parameter within the address command does not have a negate feature, which is
usually used to revert a parameter to the default value. To change the broadcast type to host-
ones after being changed to all-ones, the address command must be executed with the
broadcast parameter defined.
igp-inhibit — The optional igp-inhibit parameter signals that the given secondary IP interface
should not be recognized as a local interface by the running IGP. For OSPF and IS-IS, this means
that the specified secondary IP interfaces will not be injected and used as passive interfaces and
will not be advertised as internal IP interfaces into the IGP’s link state database. For RIP, this
means that these secondary IP interfaces will not source RIP updates.
static-arp
Syntax [no] static-arp ip-address ieee-mac-address
Context config>service>vprn>interface
Description This command configures a static address resolution protocol (ARP) entry associating a subscriber IP
address with a MAC address for the core router instance. This static ARP will appear in the core
routing ARP table. A static ARP can only be configured if it exists on the network attached to the IP
interface.
If an entry for a particular IP address already exists and a new MAC address is configured for the IP
address, the existing MAC address will be replaced with the new MAC address.
The no form of this command removes a static ARP entry.
Default No static ARPs defined.
Parameters ip-address — Specifies the IP address for the static ARP in IP address dotted decimal notation.
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