Amer Networks E5Web GUI - Manual (Page 137)

enabled by default).
Enabling IPv6 Router Advertisement
An additional option for an Ethernet interface is to enable IPv6 router advertisement. This means
that any external client connected to the interface can solicit and receive IPv6 messages to allow
it to perform Stateless Address Auto-Configuration (SLAAC). The SLAAC process allows the client to
create its own unique global IPv6 address based on the MAC address of its interface and the
prefix of the IPv6 address for the cOS Core interface it is connected to.
Example 3.9. Enabling IPv6 Advertisements
This example enables IPv6 advertisements on the wan Ethernet interface.
Command-Line Interface
Device:/> set Interface Ethernet wan EnableRouterAdvertisement=Yes
InControl
Follow the same steps used for the Web Interface below.
Web Interface
1. Go to: Network > Interfaces and VPN > Ethernet > wan
2. Go to: Advanced and enable the option: Enable router advertisement for this interface
3. Click OK
IPv4 and IPv6 Cannot Share an Address Group Object
IPv6 address objects are created and managed in a similar way to IPv4 objects They are called an
IP6 Address and can be used in cOS Core rules and other objects in the same way as an IPv4
address. However, it is not possible to combine the two in one configuration object.
For example, it is not possible to create an Address Group that contains both. The standard
Address Group object can contain only IPv4 address objects. For IPv6 there is a special object
called an IP6 Group object that can contain only IPv6 addresses.
The all-nets6 Address Object
The predefined all-nets address object is a catch-all object only for all IPv4 addresses. Another
object, all-nets6, represents all IPv6 addresses and only IPv6 addresses.
Furthermore, it is not possible to combine all-nets (all IPv4 addresses) with all-nets6 in a single
Address Group object. For example, if a DropAll rule is needed as the last "catch-all" rule in an IP
rule set, two rules are required to catch all IPv4 and IPv6 traffic. This is discussed further in
Section 3.6, “IP Rules and IP Policies”.
In the same way, a routing table could route traffic for either a IPv4 network or an IPv6 network
to the same interface but this must be done with two separate routes in the routing table, one
for IPv4 and one for IPv6. It cannot be achieved using a single route.
Chapter 3: Fundamentals
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