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Junos OS Interfaces Configuration Guide for ... - Juniper Networks

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<strong>Junos</strong> <strong>OS</strong> <strong>Interfaces</strong> <strong>Configuration</strong> <strong>Guide</strong> <strong>for</strong> Security Devices<br />

18<br />

Related<br />

Documentation<br />

The first octet of 1s identifies the address as a multicast address. The flags field identifies<br />

whether the multicast address is a well-known address or a transient multicast address.<br />

The scope field identifies the scope of the multicast address. The 112-bit group ID identifies<br />

the multicast group.<br />

Similar to multicast addresses, anycast addresses identify a set of interfaces. However,<br />

packets are sent to only one of the interfaces, not to all interfaces. Anycast addresses<br />

are allocated from the normal unicast address space and cannot be distinguished from<br />

a unicast address in <strong>for</strong>mat. There<strong>for</strong>e, each member of an anycast group must be<br />

configured to recognize certain addresses as anycast addresses.<br />

•<br />

<strong>Junos</strong> <strong>OS</strong> Feature Support Reference <strong>for</strong> SRX Series and J Series Devices<br />

• Understanding Interface Logical Properties on page 12<br />

• Understanding IPv4 Addressing on page 13<br />

• Configuring the inet6 IPv6 Protocol Family on page 18<br />

• Enabling Flow-Based Processing <strong>for</strong> IPv6 Traffic on page 19<br />

Configuring the inet6 IPv6 Protocol Family<br />

In configuration commands, the protocol family <strong>for</strong> IPv6 is named inet6. In the<br />

configuration hierarchy, instances of inet6 are parallel to instances of inet, the protocol<br />

family <strong>for</strong> IPv4. In general, you configure inet6 settings and specify IPv6 addresses in<br />

parallel to inet settings and IPv4 addresses.<br />

NOTE: On SRX Series devices, on configuring identical IPs on a single<br />

interface, you will not see a warning message; instead, you will see a syslog<br />

message.<br />

The following example shows the CLI commands you use to configure an IPv6 address<br />

<strong>for</strong> an interface:<br />

[edit]<br />

user@host# show interfaces<br />

ge-0/0/0 {<br />

unit 0 {<br />

family inet {<br />

address 10.100.37.178/24;<br />

}<br />

}<br />

}<br />

[edit]<br />

user@host# set interfaces ge-0/0/0 unit 0 family ?<br />

Possible completions:<br />

+ apply-groups Groups from which to inherit configuration data<br />

+ apply-groups-except Don't inherit configuration data from these groups<br />

> ccc Circuit cross-connect parameters<br />

> ethernet-switching Ethernet switching parameters<br />

> inet IPv4 parameters<br />

> inet6 IPv6 protocol parameters<br />

> iso <strong>OS</strong>I ISO protocol parameters<br />

Copyright © 2011, <strong>Juniper</strong> <strong>Networks</strong>, Inc.

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