Example: Configuring Shared IPv6 Interfaces

Requirements

This example uses the following software and hardware components:

• JunosE Release 7.1.0 or higher-numbered releases
• E Series router (ERX7xx models, ERX14xx models, the ERX310 router, the E120 router, or the E320 router)
• ASIC-based line modules that support Fast Ethernet or Gigabit Ethernet

Overview

You can create multiple shared IPv6 interfaces over the same layer 2 logical interface—for example, atm 5/3.101—enabling more than one IPv6 interface to share the same logical resources.

Creating a Shared IPv6 Interface over a Layer 2 Logical Interface

Step-by-Step Procedure

1. Create a layer 2 interface.
   host1(config)#interface atm 5/3 host1(config-if)#interface atm 5/3.101
2. (Optional) Create a primary IPv6 interface.
   host1(config-if)#ipv6 address 1::1/64 host1(config-if)#exit
3. Create the shared IPv6 interface.
   host1(config)#interface ipv6 si0
4. Associate the shared IPv6 interface with the layer 2 interface by the following method:
   host1(config-if)#ipv6 share-interface atm 5/3.101
5. To fully configure the shared interface, assign an address (or make the interface unnumbered).
   host1(config-if)#ipv6 address 1::1/64